San Francisco County Municipal Code § 10 Additions

Additions to existing buildings and new infill construction proposed within the Dogpatch Historic District must reflect an understanding of the relationship of the proposal with the contributing buildings within the district. Additions shall be reviewed for compatibility with the historic building and the district while infill constriction shall be reviewed for compatibility with the overall district. Neither should directly imitate nor replicate existing features. For additions, every effort should be made to minimize the visibility of the new structure within the district. Infill construction should reflect the character of the district, including the prevailing heights of contributing buildings without creating a false sense of history. Property owners should consult early in the process with a Planning Department Historic Preservation Technical Specialist when developing a proposal. Additions will be reviewed on a case-by-case basis and any proposed addition should be located in an inconspicuous location and not result in a radical change to the form or character of the historic building. A vertical addition may be approved, depending on how the addition impacts the building and its relative visibility from the surrounding public rights-of-way within the district. The Planning Department evaluates all proposals for properties identified under Article 10 of the Planning Code for compliance with the Secretary of the Interior's Standards (36 C.F.R. § 67.7 (2001)). Based on these Standards, Department staff uses the following criteria when reviewing proposals for vertical additions: • The structure respects the general size, shape, and scale of the features associated with the property and the district and the structure is connected to the property in a manner that does not alter, change, obscure, damage, or destroy any of the character-defining features of the property and the district. • The design respects the general historic and architectural characteristics associated with the property and the district without replicating historic styles or elements that will result in creating a false sense of history. • The materials are compatible with the property or district in general character, color and texture. As part of the Planning Department review process, the project sponsor shall conduct and submit an analysis that illustrates the relative visibility of a proposed vertical addition from within the district. As part of this analysis, sightline cross-sections and perspective drawings illustrating the proportionality and scale, as well as the visible extent of the addition from prescribed locations should be submitted. When a district provides an opportunity for new construction through existing vacant parcels or by replacing non-contributing buildings, a sensitive design is of critical importance. Historic buildings within the district should be utilized and referenced for design context. Contemporary design that respects the District's existing character-defining features without replicating historic designs is encouraged. The Department uses the following criteria when reviewing proposals for infill construction: • The structure respects the general size, shape, and scale of the character-defining features associated with the district and its relationship to the character-defining features of the immediate neighbors and the district. • The site plan respects the general site characteristics associated with the district. • The design respects the general character-defining features associated with the district • The materials are compatible with the district in general character, color, and texture. • The only instance where a replication of an original design may be appropriate is the replacement of a missing structure in a row of identical houses. (Added by Ord. 298-08, File No. 081153, App. 12/19/2008)

APPENDIX M TO ARTICLE 10 - MARKET STREET MASONRY HISTORIC DISTRICT SEC. 1. FINDINGS AND PURPOSES. The Board of Supervisors hereby finds that the area known and described in this ordinance as the Market Street Masonry Historic District contains a number of structures having a special character and special historical, architectural and aesthetic interest and value, and constitutes a distinct section of the City. The Board of Supervisors further finds that designation of said area as a Historic District will be in furtherance of and in conformance with the purposes of Article 10 of the Planning Code and the standards set forth therein, and that preservation on an area basis rather than on the basis of individual structures alone is in order. This ordinance is intended to further the general purpose of historic preservation legislation as set forth in Section 1001 of the Planning Code, to promote the health, safety and general welfare of the public. (Added by Ord. 64-13, File No. 121004, App. 4/17/2013, Eff. 5/17/2013)

SEC. 2. DESIGNATION. Pursuant to Section 1004 of the Planning Code, the Market Street Masonry Historic District is hereby designated as a Historic District, this designation having been duly recommended for approval by Resolution No. 690 of the Historic Preservation Commission and comments transmitted by the Planning Commission by Resolution No. 18707, which Resolutions are on file with the Clerk of the Board of Supervisors under File No. 121004 and which Resolutions are incorporated herein and made part hereof as though fully set forth. (Added by Ord. 64-13, File No. 121004, App. 4/17/2013, Eff. 5/17/2013) SEC. 3. LOCATION AND BOUNDARIES. The location and boundaries of the Market Street Masonry Historic District include the following eight (8) buildings and Assessor Parcel Numbers: 150 Franklin Street (Block and Lot No. 0834/012); 20 Franklin Street, aka 1580-1598 Market Street (Block and Lot No. 0836/010); 1649-1651 Market Street (Block and Lot No. 3504/001); 1657 Market Street (Block and Lot No. 3504/046); 1666-1668 Market Street (Block and Lot No. 0854/004); 1670-1680 Market Street (Block and Lot No. 0854/005); 1687 Market Street (Block and Lot No. 3504/040); and 1693-1695 Market Street (Block and Lot No. 3504/038); and shall be as designated on the Market Street Masonry Historic District Map, the original of which is on file with the Clerk of the Board of Supervisors in File No. 121004, which Map is hereby incorporated herein as though fully set forth. (Added by Ord. 64-13, File No. 121004, App. 4/17/2013, Eff. 5/17/2013) SEC. 4. RELATION TO PLANNING CODE AND THE PROVISIONS OF THE CHARTER OF THE CITY AND COUNTY OF SAN FRANCISCO. (a) Article 10 of the Planning Code is the basic law governing historic preservation in the City and County of San Francisco. This ordinance, being a specific application of Article 10, is both subject to and in addition to the provisions thereof. (b) Except as may be specifically provided to the contrary in this ordinance, nothing in this ordinance shall supersede, impair or modify any Planning Code provisions applicable to property in the Market Street Masonry Historic District, including but not limited to existing and future regulations controlling uses, height, bulk, lot coverage, floor area ratio, required open space, off-street parking and signs. (Added by Ord. 64-13, File No. 121004, App. 4/17/2013, Eff. 5/17/2013) SEC. 5. STATEMENT OF SIGNIFICANCE. Eight architecturally significant buildings located between Franklin and Valencia Streets comprise the Market Street Masonry Historic District. Highly regarded master architects such as August Nordin, G. Albert Lansburgh, Conrad A. Meussdorffer, and George Applegarth worked in the popular revival styles of the early 20th-century such as Classical Revival, Colonial Revival, and Venetian Gothic Revival. The architects utilized a formal three-part arrangement consisting of a base (often with a commercial storefront), main portion or column (often with residential floors), and decorative top with either a projecting cornice or decorative parapet. All buildings comprising this non-contiguous historic district are three to six stories tall and are fully built out, covering their entire lot. Most are mixed-use with commercial ground floor uses and residential above. Built between 1911 and 1925, following the 1906 Earthquake and Fire, and responding to new building codes, they influenced the visual transition of San Francisco from a city of wood and brick, to one of brick veneer, concrete, and stucco. Projecting bay windows – a long-standing feature in San Francisco – visually reinforce the vertical emphasis, while increasing the light and air into the interior of many of the buildings. The buildings are executed in earthquake and fire-resistant materials with steel frames, reinforced concrete, brick, and galvanized metal ornament. While each building is unique, they relate to each other as a group because of the period in which they were constructed, their high-style design, and fire-proof masonry construction. All of the buildings are well-preserved examples and retain character-defining features, such as elaborate metal cornices, pattern brickwork, historic storefronts with glass transom lights, bronze plate glass window frames and decorative bases. Additional historic information may be found in the Market Street Masonry Historic District Designation Report, which is hereby incorporated herein as though fully set forth. This document is on file at the Planning Department under Case No. 2011.0705L. (Added by Ord. 64-13, File No. 121004, App. 4/17/2013, Eff. 5/17/2013) SEC. 6. SIGNIFICANCE OF INDIVIDUAL BUILDINGS TO THE LANDMARK DISTRICT. A district is usually a single geographic area of contiguous historic properties; however, a district may also be composed of multiple definable significant resources separated by non- significant areas. The Market Street Masonry discontiguous district is composed of eight buildings on four blocks that are spatially discrete. The space between the buildings is not related to the significance of the district. While all buildings can be seen from the intersection of Market and Franklin Streets, the visual continuity is not a factor in the significance. Each of the eight discontiguous buildings are contributory to the Market Street Masonry Historic District. An architectural description, building history and evaluation of each parcel within the Historic District is documented in the Market Street Masonry Historic District Designation Report and are hereby incorporated herein as though fully set forth. It is important to note that street address numbers are subject to change, and that the most reliable, official method for identifying a property within the Landmark District is to refer to it by its assigned Assessor Block and Lot number. (Added by Ord. 64-13, File No. 121004, App. 4/17/2013, Eff. 5/17/2013) SEC. 7. FEATURES OF THE DISTRICT AND

reby incorporated herein as though fully set forth. It is important to note that street address numbers are subject to change, and that the most reliable, official method for identifying a property within the Landmark District is to refer to it by its assigned Assessor Block and Lot number. (Added by Ord. 64-13, File No. 121004, App. 4/17/2013, Eff. 5/17/2013) SEC. 7. FEATURES OF THE DISTRICT AND EXISTING BUILDINGS. The character-defining features of the Market Street Masonry Historic District include all exterior elevations, including rooflines, of each of the eight buildings. The following section describes in further detail character-defining features of the District and of individual buildings contained therein. Historic District designation is intended to protect and preserve these character-defining features. (a) Overall Form, Continuity, Scale and Proportion. All buildings are built to the property lines, rise vertically without setbacks, and have flat roofs. Building height is within a three- to-six story range, with one building at three stories, one at four, four at five stories, and two at six stories in height. All buildings in the district retain their historic integrity. The buildings are consistent in height, bulk, scale and proportion. (b) Fenestration. Existing fenestration consists of predominantly double-hung, wood sash windows that are vertical in orientation; however, industrial steel sash is found, as are awning and casement sash. Buildings feature a symmetrical and regular pattern of windows with consistent dimensions along primary facades. Aside from some ground floor commercial storefronts, the size and shape of window openings have not been altered over time. Replacement window sash that were added to buildings after the period of significance have not gained significance in their own right. (c) Materials and Finishes. Unpainted brick is the predominant cladding material found in five of the eight buildings in the district; however, painted stucco on concrete is found on three buildings in the district. Galvanized sheet iron is used extensively for decorative features and the cladding of projecting bay windows. (d) Architectural Details. There are no character-defining interior features or spaces included in this designation. The character-defining exterior features of the buildings are: (1) 150 Franklin Street. The significant historical and architectural features of 150 Franklin Street are: five-story height and rectangular massing; scored concrete cladding on the raised basement and brick cladding on the upper stories; recessed main entrance with a concrete, segmental arch surround, marble steps, and glazed wood door with sidelights and transom; glass and metal framed curved marquise; fenestration pattern of recessed, semi-hexagonal bays, with double-hung wood sash windows set within galvanized metal surrounds that extend the full height of the building; Classical Revival decorative details, including a basement story separated from the upper stories by a band of Greek key ornament, metal architrave with beveled shield ornaments between the bays, a frieze with brick Flemish diagonal bond ornament, and a deeply projecting metal cornice with dentils, egg and dart molding, drop finials on the soffit, galvanized metal spandrel panels, and geometric fascia ornament with plaques set between the bays on the cornice fascia; and flat root as well as: • All exterior elevations, architectural details, motifs and rooflines; • Rectangular massing; • Projecting metal and glass marquise above the main entry on Franklin Street;

• Exterior cladding including unpainted common bond brick; painted stucco base and terra cotta and/or cast stone water table and bay frames and panels; • Historic one-over-one wood double hung windows on residential floors; paired wood casement sash at the raised basement; and • Projecting metal cornice. (2) 20 Franklin Street, aka 1580-1598 Market Street. The significant historical and architectural features are: six-story height and E-shaped massing; brick cladding; high vertically divided transoms at the second story level; light wells at second story that are separated from those below and above by metal cornices; light wells fronted by a dentilated triangular pediment supported by Tuscan columns; symmetrical fenestration pattern with flat arch lintels and keystones; sixth floor windows with molded surrounds and label molding; modillion cornice; parapet; and flat root as well as: • All exterior elevations, architectural details, motifs and rooflines; • Irregular pentagonal massing at the base, and "E" shaped apartment blocks on upper floors; • Pediments supported by columns fronting the southern light courts; • Window openings with double hung sash, historically one-over-one wood double hung sash; • Unpainted English bond brick on Market and Page Street elevations; • Brick piers and bases at the glazed storefronts with glass transoms; • Projecting metal cornice; and • Flagpole. (3) 1649 Market Street. The significant historical and architectural features are: five-story height and U-shaped massing; stucco and brick cladding; recessed entrance with glazed wood door, sidelights and transom; wood sash mezzanine windows at several storefronts; distinctive upper story fenestration pattern of modified Chicago-style windows with six-over-one light double-hung wood sash windows separated by spandrel panels with inlaid brick designs; side windows angled to the depth of the building wall; fifth story stucco cladding with an elaborate decorative scheme; slightly arched fifth story window openings with Corinthian columns with embossed patterning on the shafts; sills supported on molded brackets, and recessed panels between windows; a relief panel with a female face surrounded by garlands at the left and right ends of the story; and a metal entablature with dentils and a modillion cornice; as well as: • All exterior elevations, architectural details, motifs and rooflines; • Rectangular massing; • Unpainted Flemish bond brick on Market, Brady and Stevenson Streets; • Recessed residential entry with marble paneling and beveled divided lights; • Glazed storefronts with wood divided-light transoms set within embossed metal frames; • Painted stucco base on Market, Brady and Stevenson Streets; • Historic six-over-one and nine-over-one wood double hung sash; • Terra cotta ornament at the fifth floor; and • Projecting metal cornice. (4) 1657 Market Street. The significant historical and architectural features are: five-story height and rectangular massing; brick cladding; intact lattice transom at the former storefront; multi-story canted bays; approximately fifty percent of the original double-hung, wood-sash windows; paneled spandrels and projecting cornices at the bays; a distinctive fifth story fenestration pattern including a pair of arched window openings with double-hung, wood sash in the left and right bays, and a blind window opening in the center bay, all divided with pilasters, a continuous sill and outlined with coping; and a cornice with dropped brackets and a molded frieze; as well as: • All exterior elevations, architectural details, motifs and rooflines; • Rectangular massing; • Storefront surround with embossed metal ornament, painted stucco base, embossed metal frames, prism glass storefront transom; • Projecting bay windows supported on scroll brackets; • Historic one-over-one wood double hung sash; and • Projecting metal cornice. (5) 1666-1668 Market Street. The significant historical and architectural features are: height and massing; brick cladding; fenestration pattern with six-over-six light, wood, double- hung sash; Colonial Revival decorative features including arched, recessed entrance in the left (western) bay with Doric columns and divided sidelights and a fanlight transom; upper stories with arched window openings on the second story with infilled, paneled arches; third story with flat lintels and sills; fourth-story with segmental arch lintels and keystones; belt course that separates the fifth story; entablature with triglyphs and medallions on the frieze and a modillion cornice; and parapet topped with a balustrade; as well as: • All exterior elevations, architectural details, motifs and rooflines; • Trapezoidal massing; • Unpainted Flemish bond brick on Market Street; stucco and galvanized metal on Rose Street; • Storefront enframement of painted molded stucco (the configuration within the enframement is non-historic); • Historic six-over-six wood double hung sash; and • Projecting metal cornice and balustrade parapet. (6) 1670-1680 Market Street. The significant historical and architectural features are: six-story height and massing; stucco cladding; storefronts with tiled water tables and window enframements and original wood frame storefront windows and high, divided, straight, transom with arched openings and turned spindle muntins; entry with shouldered, arched opening and a door hood on brackets with a shouldered pediment; upper stories with bay windows in the second, fourth, and sixth bays with paneled spandrels, colonnettes with spiral fluting, and molded friezes; and entablature with mo

mements and original wood frame storefront windows and high, divided, straight, transom with arched openings and turned spindle muntins; entry with shouldered, arched opening and a door hood on brackets with a shouldered pediment; upper stories with bay windows in the second, fourth, and sixth bays with paneled spandrels, colonnettes with spiral fluting, and molded friezes; and entablature with molded medallion frieze and modillion cornice; as well as: • All exterior elevations, architectural details, motifs and rooflines; • Trapezoidal massing; • Recessed residential entry with marble step, tiled floor, and wood entry door and transom with wrought iron grilles; • Glazed storefronts with wooden arched top divided light storefront transoms, tiled piers and bases and retractable awning pockets; • "Gaffney Building" incised panel above the storefronts; • Historic wood casement windows with transoms; and • Projecting metal cornice. (7) 1687 Market Street. The significant historical and architectural features are identified as follows: two-story with mezzanine/three-story height and massing; stucco cladding; glazed storefronts; deeply recessed entry with tiled floor; wood entry doors with transoms; steel windows with divided-light transoms; stucco moldings framing the facade and between the mezzanine and upper floor; metal tile pent roof and shaped parapet on Market Street; and three levels of industrial divided-light steel sash on Stevenson Street; as well as: • All exterior elevations, architectural details, motifs and rooflines;

• Rectangular massing; • Deeply recessed entry with tile floor, mirror, two wood doors and transoms; • Glazed storefronts with painted stucco bases and no transoms; • Steel windows with divided light transoms on Market Street; divided light steel industrial sash on Stevenson Street; • "Edward McRoskey Mattress Co" incised panel; and • Shaped parapet with metal tile pent root; (8) 1693 Market Street. The significant historical and architectural features are: five story height and rectangular massing; combination brick and metal cladding; recessed residential entry at the left bay; four-story continuous canted bays with wood sash awning windows, spandrel panels and fixed, recessed, half-round or square transoms; fire escape at the central bays on the second through fifth floors; entablature and double, arched parapet with decorative keystones above the first and fourth bays; and a flagpole in the center; as well as: • All exterior elevations, architectural details, motifs and rooflines; • Rectangular massing; • Recessed residential entry with divided-light transom; • Commercial storefront with painted masonry piers; • Unpainted stacked and American bond brick above the ground floor; • Wood awning windows with transoms; • Metal-clad projecting bay windows; • Double-arched brick and metal shaped parapet; and • Flag pole. (e) Landscape Elements. All properties in the Historic District are built to their respective lot lines, and do not have landscape features. Streets, sidewalks and other public spaces are present in this dense urban environment, but are incidental, rather than integral to the significance of the buildings. Streets and sidewalks are not included as character-defining features. Public landscape elements are therefore specifically excluded from this designation. (f) Additional features of the Historic District are documented in the Market Street Masonry Historic District Designation Report within the section entitled "Common Characteristics of Buildings in the Market Street Masonry District," and are hereby incorporated herein as though fully set forth, and are on file at the Planning Department under Case No. 2011.0705L. (Added by Ord. 64-13, File No. 121004, App. 4/17/2013, Eff. 5/17/2013) SEC. 8. REVIEW STANDARDS FOR CERTIFICATES OF APPROPRIATENESS. The standards for review of all applications for Certificates of Appropriateness are as set forth in Section 1006.6 of Article 10 . For the purposes of review under those standards, the "character of the Historic District" shall mean the exterior architectural features of the Market Street Masonry Historic District referred to and described in Section 7 of this Appendix. The procedures, requirements, controls, and standards in Sections 1005 through 1006.7 of the Planning Code shall apply to all applications for Certificates of Appropriateness in the Market Street Masonry Historic District. In addition to those requirements, the following provisions shall apply to all such applications; in the event of any conflict or inconsistency between the following provisions and Article 10 , those procedures, requirements, controls and standards affording stricter protection to landmarks, landmark sites and the Historic District shall prevail: (a) A Certificate of Appropriateness shall be required for painting previously unpainted brickwork. (b) Administrative Certificates of Appropriateness: (1) Brickwork. An Administrative Certificate of Appropriateness shall be required for cleaning brick surfaces with abrasives or treatment of such surfaces with waterproofing chemicals or anti-graffiti coatings. (2) Galvanized Metal Ornament. An Administrative Certificate of Appropriateness shall be required for any repair of metal ornament that necessitates its removal from the building in order to carry out such repair. (3) Signs and Awnings. An Administrative Certificate of Appropriateness shall be required for new tenant signs, signage programs and awnings. Signage programs established for individual buildings with a Notice of Special Restrictions (NSR) on file may avoid future Administrative Certificates of Appropriateness provided future signs follow the established program. Signs, signage programs and awnings that are compatible in terms of material, location, size, method of attachment, and method of illumination with the building and/or district and meet the following requirements: (i) Proposal shall not obscure or cover any exterior character-defining features; (ii) Proposal includes the removal of any abandoned conduit, outlets, attachment structures, and related equipment; (iii) All signs shall be constructed out of durable high-quality materials that retain their characteristics within a high-traffic area over time. Poor quality materials that are prone to fading, rapid deterioration, or damage are discouraged; (iv) Materials shall be compatible with the color, craftsmanship, and finishes associated with the District. Materials shall not have glossy or highly reflective surfaces; (v) All signage applied to or installed directly behind storefront glass shall not exceed one-third of the glass area; (vi) Awnings shall be constructed out of cloth or a material similar in appearance and texture to cloth; (vii) Retractable and operable awnings are encouraged; however, a fixed awning may be acceptable if it expresses the same characteristics as retractable awnings or has a free- moving valance, and does not appear to be rigid, hard, or inflexible; (viii) All signs shall be attached in a manner that avoids damaging or obscuring any of the character-defining features associated with the subject building; (ix) For masonry buildings, projecting

fixed awning may be acceptable if it expresses the same characteristics as retractable awnings or has a free- moving valance, and does not appear to be rigid, hard, or inflexible; (viii) All signs shall be attached in a manner that avoids damaging or obscuring any of the character-defining features associated with the subject building; (ix) For masonry buildings, projecting signs shall be anchored through mortar joints or attached to a non-historic storefront system. All other signs shall be attached in a manner that allows for their removal without adversely impacting the exterior of the subject building. (4) Exterior Lighting. An Administrative Certificate of Appropriateness shall be required for lighting systems, not otherwise defined as a sign by this Code, whether mounted on the façade of the building or not, the purpose of which is to illuminate the architectural features of the building. (Added by Ord. 64-13, File No. 121004, App. 4/17/2013, Eff. 5/17/2013) APPENDIX N TO ARTICLE 10 - DUBOCE PARK HISTORIC DISTRICT SEC. 1. FINDINGS AND PURPOSES. The Board of Supervisors hereby finds that the area known and described in this ordinance as the Duboce Park Historic District contains a number of structures having a special character and special historical, architectural and aesthetic interest and value, and constitutes a distinct section of the City. The Board of Supervisors further finds that designation of said area as an Historic District will be in furtherance of and in conformance with the purposes of Article 10 of the Planning Code and the standards set forth therein, and that preservation as a district rather than as individual structures alone is in order.

This ordinance is intended to further the general purpose of historic preservation legislation as set forth in Section 1001 of the Planning Code, to promote the health, safety and general welfare of the public. (Added by Ord. 107-13 , File No. 130070, App. 6/13/2013, Eff. 7/13/2013) SEC. 2. DESIGNATION. Pursuant to Section 1004 of the Planning Code, the Duboce Park Historic District is hereby designated as an Article 10 Historic District, this designation having been duly approved by Resolution No. 699 of the Historic Preservation Commission and Resolution No. 18781 of the Planning Commission which Resolutions are on file with the Clerk of the Board of Supervisors under File No. 130070 and which Resolutions are incorporated herein and made part hereof as though fully set forth. (Added by Ord. 107-13 , File No. 130070, App. 6/13/2013, Eff. 7/13/2013) SEC. 3. LOCATION AND BOUNDARIES. The location and boundaries of the Duboce Park Historic District are: the west side of Steiner Street, the south side of Waller Street, the rear property line o lots adjacent to Duboce Park, and the three interior block park entrances at Carmelita, Pierce, and Potomac Streets (with a 10-foot buffer at each set of steps and retaining walls). In addition to the interior block entrances, the historic district encompasses all lots contained within Assessor's Block 0863, 0864, 0865, and 0866 and shall be as designated on the Duboce Park Historic District Map, the original of which is on file with the Clerk of the Board of Supervisors under File No. 130070, which Map is hereby incorporated herein as though fully set forth. (Added by Ord. 107-13 , File No. 130070, App. 6/13/2013, Eff. 7/13/2013) SEC. 4. RELATION TO PLANNING CODE AND THE PROVISIONS OF THE CHARTER OF THE CITY AND COUNTY OF SAN FRANCISCO. (a) Article 10 of the Planning Code is the basic law governing historic preservation in the City and County of San Francisco. This ordinance, being a specific application of Article 10, is both subject to and in addition to the provisions thereof. (b) Except as may be specifically provided to the contrary in this ordinance, nothing in this ordinance shall supersede, impair or modify any Planning Code provisions applicable to property in the Duboce Park Historic District, including but not limited to existing and future regulations controlling uses, height, bulk, lot coverage, floor area ratio, required open space, off-street parking and signs. (Added by Ord. 107-13 , File No. 130070, App. 6/13/2013, Eff. 7/13/2013) SEC. 5. STATEMENT OF SIGNIFICANCE. The Duboce Park Historic District is a three-block residential enclave in the Duboce Triangle neighborhood that is immediately adjacent to and shares a common development history with Duboce Park, a small civic park. The district is comprised of 87 residential buildings and the stone steps and Serpentine rock retaining walls at the three interior block park entrances: Carmelita, Pierce, and Potomac Streets. The district is significant for its unusual development history and architectural expression, as described below. The Duboce Park Historic District is significant for the unusual development history of the contested tract of land upon which it was built and the way in which the contested nature of the tract impacted the district's physical appearance and connection to the adjacent park. The tract (formerly known as the Public Reservation, Hospital Lot, and Marion Tract) was subject to a decades-long series of court battles over legal ownership, with the City of San Francisco losing half of its claim to the land to the German Savings and Loan Association in the late 1890s. After acquiring title to half of the tract, the bank subdivided the land, carved out interior block streets, and sold lots to builders who developed the residential portion of the tract. The lots sold quickly and a handful of builders immediately began developing the parcels. Due to the delay in development caused by the litigation, construction dates for the vast majority of contributing resources within the district range from 1899 to approximately 1902. This short period of development and limited number of builders resulted in a remarkably uniform streetscape of Victorian- and Edwardian-era houses and flats of similar design and proportion. The contested nature of the tract, its history as a debris dump, and neighborhood activism and development of the adjacent civic park are key themes linked to the Duboce Park Historic District. One important visible manifestation of this interrelated history is found at the park's northern border – specifically the lack of separation between the park and residential buildings. The district represents the best example of San Francisco's handful of municipal parks that directly abut residential buildings, without any separation of a street or sidewalk. In addition, the historic stone steps and rock retaining walls at the three interior block park entrances – Carmelita, Pierce, and Potomac Streets – reflect the transformation of the City-owned portion of the contested tract from a dumping ground for Serpentine rock rubble to a picturesque, landscaped civic park. Serpentine rock rubble is also found in the foundations of many district buildings. The Duboce Park Historic District is also significant for its architectural expression as a remarkably intact grouping of Victorian- and Edwardian-era residential buildings. The district expresses the distinctive characteristics of late Victorian- and Edwardian-era architectural styles, with the Queen Anne style widely represented. Although the district displays a remarkable variety of ornament, unifying design features include asymmetrical and articulated façades, steep roof pitches, the use of multiple textures and wood cladding, and front yard setbacks. Many of the Queen Anne cottages and flats were developed by Fernando Nelson, a master builder known for his exuberant ornamentation and elabo

style widely represented. Although the district displays a remarkable variety of ornament, unifying design features include asymmetrical and articulated façades, steep roof pitches, the use of multiple textures and wood cladding, and front yard setbacks. Many of the Queen Anne cottages and flats were developed by Fernando Nelson, a master builder known for his exuberant ornamentation and elaborately applied millwork. Nelson designed and built approximately one half of the district properties, including nearly all of the residences on Carmelita and Pierce Streets. The district represents one of the earliest developments in his 77-year career and is an excellent representation of his effusive interpretation of the Queen Anne style. District features characteristic of Nelson's Victorian-era period include button boards, drips, and donuts; blocky geometric cut-outs above the entry porch; two-sided bay windows; half-circle rows of dentils located in gable ends; and a wavy, stylized quarter-sunburst detailed at the arched entry. The turn-of-the-century development of buildings within the district often resulted in a rare fusion of Edwardian-era massing with exuberant Victorian-era detailing. It is common in the district for Edwardian-era flats to feature unusually ornamented spandrel panels and decorative friezes and several are capped with the gable roof form more commonly associated with Queen Anne style buildings. The period of significance for the Duboce Park Historic District dates from 1899 to 1911, inclusive of the known period of construction of all buildings within the district. Additional historic information may be found in the Duboce Park Historic District Designation Report, which is hereby incorporated herein as though fully set forth. This document is on file at the Planning Department under Case No. 2011.0683L. (Added by Ord. 107-13 , File No. 130070, App. 6/13/2013, Eff. 7/13/2013) SEC. 6. FEATURES OF THE DISTRICT AND EXISTING BUILDINGS. The character-defining interior features of buildings in the district are identified as: None. The character-defining exterior features of buildings in the district are identified as: All exterior elevations and roof lines as described below. The character-defining landscape elements of the district are identified as: The rustic interior block park entrances at Carmelita, Pierce, and Potomac Streets – which include the historic stone steps, Serpentine rock retaining walls set in a random rubble pattern, and the public rights-of-way within a 10-foot buffer – and the lack of physical separation between the park and adjacent buildings. The following section describes in further detail the character-defining features of the district and of individual buildings and landscape elements contained therein. Historic district designation is intended to protect and preserve these character-defining features. a) Overall Form, Continuity, Scale and Proportion. Due to the brief period of construction – most buildings were constructed between 1899 and 1902 – and combined involvement of two primary builders, buildings within the district exhibit a remarkable consistency in terms of massing, scale, style, detailing, front yard setback, and feeling. District buildings are overwhelmingly residential, being composed primarily of single-family dwellings and residential flats. A few multiple-family residences within the district (typically located on street corners) also include a commercial use at the street level. Buildings in the district range from 1½ story-over-basement to four stories in height, with two and three stories predominating. The district's largest single-family residences and flats were built on corner lots directly adjacent to the Park. These buildings are typically two- to three- stories in height and feature consistent detailing on the primary, Park-facing, and rear façades. Generally speaking, the buildings fronting Carmelita, Pierce and Potomac Streets were originally constructed as one- or two-family dwellings, while flats dominated the lots facing

Waller and Steiner Streets. Mid-block buildings are typically smaller than those constructed at the corners or on Waller and Steiner streets and are more likely to draw from Victorian-era form and massing such as prominent gabled roof forms and asymmetrical massing at the primary façade. Though consistent in massing, single-family buildings on Potomac Street feature the greatest variety of roof forms, including gable, hipped, cross-gable, and one building with a side gable roof form and small eyebrow dormers. Buildings located along the interior blocks feature uniform front yard setbacks of approximately nine feet and are often bounded by a low cast stone site wall. The flats buildings on Steiner Street do not feature front yard setbacks; rather, they present a modulated massing of muscular bay windows and deeply recessed entry porticos. The Queen Anne style buildings present in the district may be subdivided into two basic arrangements: 1½ story-over-raised-basement single-family cottages, and 2½ story-over-raised- basement single family dwellings or flats. The buildings tend to conform to a basic plan of a projecting bay on the first floor, flanked by an open porch and entry to the side-with the porch entry often surmounted by spindle work or decorative porch brackets. Roof forms are hipped or steeply pitched front-facing gables. Slightly projecting second story overhangs are common. Edwardian-era flats building are three stories-over-basement in height with wide projecting structural window bays, featuring angled- or bent-sash windows. The roofline of Edwardian- era flats buildings feature projecting cornices that follow the profiles of the primary façades. The buildings are typically topped with flat roofs, though several feature gable roof forms. Massing is symmetrical, except at the first story, where the two structural bays are occupied by a recessed entrance at one side and a projecting bay window at the other. Original roof projections include turrets topped with witch's cap or conical roof forms and small-scale cross-gables atop projecting bay windows. Turrets, found on both Queen Anne and Edwardian-era buildings, are generally located at the corner, adjacent to or embedded within a forward-facing gable. Additionally, several buildings exhibit what appear to be historic dormers. Located on sloped gables, these dormers are small in scale, gabled, and match the ornamentation and fenestration of primary façades. Although the roof forms – particularly at the non-visible rear façade – of a substantial number of buildings have been altered to incorporate skylights, small dormer windows, fire escapes, or solar panels, these alterations were constructed outside of the Period of significance and have not gained significance in their own right. Similar roof forms, massing, and setbacks result in a cohesive streetscape of rooflines, entrances, continuous primary façades, and modulated bays. With no visual separation between buildings in the district, the block faces present an overall appearance of attached row-houses; however, with a few exceptions, it is unlikely that buildings feature shared structural walls. b) Fenestration. Fenestration is remarkably consistent throughout the district, consisting of vertically oriented double-hung wood sash windows, with ogee lugs, set in wood surrounds. Windows are typically set in wide angled bays with smaller windows set flush with the façade, often adjacent to the primary entry door. Windows surround are typically topped with cornices, occasionally featuring pediments, with ornamented details. Smaller vertically oriented windows, set in a single, pair, or ganged configuration, are also often located in the tympanum of the Queen Anne style buildings. Tympanums typically have a higher solid-to-void ratio than the lower stories. Several buildings – typically Edwardian-era flats buildings – feature curved wood sash windows set in curved structural bays. Angled or curved bays typically contain three windows, though certain bays of corner buildings contain four windows. While rare, several buildings display two-sided angled bay windows at the primary façade. Large corner buildings with greater surface area have a higher solid-to-void ratio than mid-block buildings. Window bays and window openings set flush with the façade are typically placed in the same location, presenting a stacked appearance, at each story of the three story comer buildings. The vast majority of buildings within the district retain some or all historic double-hung wood sash windows with ogee lugs. Replacement windows made of aluminum or vinyl sash, casement windows, or windows with divided lights that were added to buildings after the Period of significance have not gained significance in their own right. c) Materials & Finishes. Buildings in the district are of wood frame construction and were historically clad in horizontal wood siding. Exterior surface finishes are painted. Channel drop wood siding is typical at the secondary and rear façades, while a combination of flush, lap, channel drop, and shingles are typically found at the primary façades of Victorian-era buildings. Flush wood siding is most common on the primary façades of Edwardian-era flats buildings. Most buildings retain their historic siding though a few were later clad in stucco, asbestos, or composite shingle siding. These replacement sidings have not gained significance in their own right. Historically, the gabled roofs within the district were clad in unpainted wood shingles. These historic roofing materials are no longer present. Existing gable roofs are typically finished with asphalt or composite shingles that match the color and tone of the historic wood roofing materials. Though generally compatible, this replacement roofing material has not gained significance in its own right. d) Architectural Details. Common traits found throughout the district are

s. These historic roofing materials are no longer present. Existing gable roofs are typically finished with asphalt or composite shingles that match the color and tone of the historic wood roofing materials. Though generally compatible, this replacement roofing material has not gained significance in its own right. d) Architectural Details. Common traits found throughout the district are bay windows, gable roofs, decorative cornices, ornamental shingles, and spindle work, as well as more classically influenced detailing such as dentils, pediments, columns, and applied plaster ornament. Ornamental details are typically larger and more robust in scale at the first story, with finer, more delicate features located at the upper floors. Many of the district's buildings retain their original primary entrance doors. These paneled wood doors, often slightly wider than contemporary entrance doors, are commonly glazed at the upper portion and feature corniced hoods and incised or applied ornament. Occasionally, a single fixed window is located adjacent to the entry door of Queen Anne buildings and some doors, of both Queen Anne and Edwardian-era buildings, are topped with transom windows. Queen Anne Design Elements Late Victorian- and Edwardian-era architectural styles predominate, with the Queen Anne style most widely represented. Though Victorian-era architectural design displayed a remarkable variety of ornament, unifying features include asymmetrical and articulated façades, steep roof pitches, and the use of multiple textures, materials and colors. Many of the Queen Anne style buildings on Potomac Street, designed by developer George Moore, stand out for their muscular massing, restrained ornament, projecting second story overhangs, and hipped roof forms. In contrast, the developer Fernando Nelson designed most of the Queen Anne buildings on Pierce, Potomac, and Waller streets, to reflect his embrace of more exuberant and delicate architectural features, including spindle screens, turrets, and cut-outs. Architectural details commonly found on Queen Anne buildings throughout the district include raked cornices, flared eaves, shingled tympanums, diamond and fish-scale shingling, turrets (particularly at corner buildings), projecting bracketed cornices, steeply pitched gable roofs, double-gables, finials, geometric applied ornament at spandrel panels, dentils, friezes decorated with plaster ornament, egg and dart molding, cut-out screens, sunbursts, donut cut-outs, intermediate cornices, window and door hoods, spindle screens, turned wood balustrades and newel posts, Tudor-inspired stick work, turned wood porch supports, a variety of wood cladding and patterned wood shingles, arched porticos, and Corinthian or Composite columns and pilasters. Anthropomorphic details are rare but present within the district. Historically, there were several types of stairs constructed in the district: longer flights of wood stairs that typically project out from Queen Anne style buildings and shorter flights typically found within the recessed entries of Edwardian-era flats buildings. The Queen Anne buildings on interior block streets are typically accessed via a straight run flight of wood stairs. Due to the slope, stairs on the west side of these blocks are significantly longer than those on the east. Historically, wood stairs on these interior blocks were solid and uniform in appearance: featured closed risers, solid cheek walls beneath the stairs, turned wood balustrades, and capped newel posts; and had a painted finish. Some flights of stairs were later replaced with brick, concrete, tile, or terrazzo. These replacement stairs have not gained significance in their own right. Edwardian-Era Design Elements Edwardian-era buildings, referred to locally as Classical Revival, were constructed in San Francisco from approximately 1901 to 1910. The term Edwardian is used architecturally to describe a more vernacular interpretation of the Classical Revival style and is commonly applied to three-unit flats buildings – like those found within the district – with wide angled or round bay windows, flat roofs, bulky projecting cornices, and columned porch entries. Edwardian-era buildings within the district, particularly those on Steiner Street, feature wood or terrazzo steps with solid cheek walls and landings. These stairs are typically located largely within the building envelope and provide access to recessed entrance doors. Entrances of Edwardian-era flats in the district are typically flanked by Classical columns or pilasters, and decorated with applied plaster ornament, such as garlands and floral friezes. Architectural ornament associated with the Edwardian-era is typically more restrained than those used during the Victorian-era. The turn-of-the-century development of buildings within the district, however, often resulted in a fusion of Edwardian-era massing with exuberant Victorian-era detailing. It is common in the district for Edwardian-era flats to feature unusually ornamented spandrel panels and decorative friezes and several are capped with the gable roof form more commonly associated with Queen Anne style buildings. e) Landscape Elements. Properties within the district typically feature uniform front yard setbacks on each block face. Setbacks on the west side of interior blocks are generally much deeper – typically 13' to 17' – than the east side, which, depending upon the block, range from approximately 5' to 13'. Setbacks on the western portion of Waller Street are uniform on each block face, ranging from approximately 8' to 12'. Despite the variability in front yard depth, each block face features similar setbacks and reads as uniform. Buildings located on the eastern portion of Waller and Steiner streets, typically Edwardian-era flats, are built out to the sidewalk, with no or minimal front yard setbacks.

Historically, front yards were bounded with low cast stone site walls and planted with vegetation. Site walls on Carmelita Street – and possibly other blocks – were originally topped with decorative iron fencing. Despite the west to east downward slope, the yards located within the front setback are level rather than terraced or sloped. Several sections of site walls on Carmelita Street retain all or a portion of their original decorative iron fencing. Front yard setbacks and remnants of intact cast stone site walls are also located along Waller, Pierce, and Potomac Streets. The addition of garages has altered the front yards of many district properties. None of the historic buildings within the district were originally constructed with an integrated or detached automobile garage. On most blocks, portions of site walls were removed and front yards partially paved in order to accommodate driveways for garages inserted in the basement of many buildings. Several properties feature detached or semi-attached pop-out garages in the front yard. Garage structures, openings, and driveways are not considered significant in their own right. f) Interior Block Park Entrances. The development history of residential properties within the Duboce Park Historic District is closely intertwined with the history of the adjacent Duboce Park. Certain identified elements on the periphery of Duboce Park reflect this close association between residential and park development; notably, the lack of a physical separation between residential buildings and the park and rustic entrances from cul-de-sac streets into the park. These park entrances – located at the foot of Potomac Street, Pierce Street, and Carmelita Street – feature rustic stone steps flanked by low retaining walls built of Serpentine rock set in a random rubble pattern. For the purpose of Article 10 , the park entrances at Potomac Street, Pierce Street, and Carmelita Street are defined as the steps, rock walls, and a surrounding 10-foot buffer. The buffer area includes the sidewalks, street rights-of-way and area within the park directly adjacent to the steps and rock walls. (Added by Ord. 107-13 , File No. 130070, App. 6/13/2013, Eff. 7/13/2013) SEC. 7. DEFINITIONS. For the purpose of this Appendix N only, the following terms shall have the following meanings: Interior Block Park Entrance: The interior block park entrances at Potomac Street, Pierce Street, and Carmelita Streets are defined as the steps, Serpentine rock retaining walls, and a surrounding 10-foot buffer. The buffer area includes the sidewalks, street right-of-way and area within the park directly adjacent to the steps and rock retaining walls. Primary Façade: A primary façade is a building's main street-racing façade. Corner buildings have two primary façades; the second primary façade may front Duboce Park or the street. Rear Façade: The rear façade is located at the rear of the building. Public Right-of-Way: A public right-of-way is a street, sidewalk, interior block park entrance, or park. Visibility: A building, feature, or alteration is considered "visible" when it can be seen from a public right-of-way within the District and/or is visible from Duboce Park. Visibility from Duboce Park is limited to the highly visible façades of the first three buildings adjacent to the Park. Due to their distance from the Park, the rear façades of buildings adjacent to the western portion of Duboce Park (parallel to Scott Street) are excluded from this definition of visibility. See map.

(Added by Ord. 107-13 , File No. 130070, App. 6/13/2013, Eff. 7/13/2013) SEC. 8. STANDARDS FOR REVIEW OF APPLICATIONS. The standards for review of all applications for Certificates of Appropriateness are as set forth in Section 1006.6 of Article 10 . For the purposes of review under those standards, the "character of the Historic District" shall mean the exterior architectural features of the Duboce Park Historic District referred to and described in Section 7 of this Appendix. Any exterior change within the Duboce Park Historic District shall require a Certificate of Appropriateness, pursuant to the provisions of Article 10 , when such work requires a City permit, with the exception of specific scopes of work as outlined below. The procedures, requirements, controls and standards of Article 10 of the Planning Code shall apply to all applications for Certificates of Appropriateness and/or Administrative Certificates of Appropriateness in the Duboce Park Historic District. The following section outlines the levels of review as determined by proposed scopes of work within the Duboce Park Historic District. The three levels of review are: "No Certificate of Appropriateness" is required; an "Administrative Certificate of Appropriateness" is required, which is approved administratively by Planning Department Preservation staff as delegated pursuant to Section 1006.2(b) of the Planning Code; and a "Certificate of Appropriateness" is required pursuant to Section 1006 of the Planning Code at a regularly scheduled Historic Preservation Commission hearing. See Section 7 for definitions pertaining to primary and rear façades, interior block park entrances, and visibility from public rights-of-way. Ancillary Structures within the Rear Yard – Construction or Removal A Certificate of Appropriateness shall not be required for the construction of any structure within the rear yard that is no more than eight feet in height above grade and covers no more than 100 square feet of land regardless of visibility from public rights-of-way. A Certificate of Appropriateness shall not be required for the removal of any non-historic ancillary structure within the rear yard. Decks, Stairs, & Railings Front Stairways and Railings: An Administrative Certificate of Appropriateness shall be required for the replacement of historic or non-historic stairways and/or railings with compatible stairways and/or railings provided that the proposal is based on physical or documented evidence and is found to be compatible in terms of location, configuration, materials, and details with the character-defining features of the building and/or district. New railings, if needed shall match the historic rail system in design. This does not apply to the replacement of porticos, porches, or other architectural components of the entry. Rear Yard Decks, Stairs, and Railings: A Certificate of Appropriateness shall not be required for the repair, replacement, or new construction of rear yard decks and stairways and associated structural elements that are located in the rear yard and are not visible from the public rights-of-way. An Administrative Certificate of Appropriateness shall be required for the replacement or new construction of rear yard decks and stairways and associated structural elements that are visible from public rights-of-way provided that the design is determined compatible in terms of location, configuration, materials, and details with the character-defining features of the district. Doors Door Replacement – Primary Façade: An Administrative Certificate of Appropriateness shall be required for door replacement on the primary façades provided that the proposed door matches the historic door (extant or not) in terms of opening size, door type, glazing, material, and all exterior profiles, dimensions and detailing. Door Replacement – Secondary Façades: A Certificate of Appropriateness shall not be required for door replacement on secondary façades regardless of material or visibility from the public right-of-way. Door Openings – Non-Visible Rear Façade: A Certificate of Appropriateness shall not be required for the alteration of existing door openings, or the insertion of new door openings, at rear façades that are not visible from public rights-of-way.

Door Openings – Visible Rear Façade: A Certificate of Appropriateness shall not be required for the modification of existing openings provided that such openings are not enlarged more than 50% of the existing opening's size. An Administrative Certificate of Appropriateness shall be required for the insertion of new door openings on rear façades visible from public rights- of-way. Garage Doors: A Certificate of Appropriateness shall not be required for the replacement of an existing garage door provided that the new garage door is compatible in terms of material, pattern, and fenestration and minimizes its visual impacts on the character-defining features of the existing building and front yard setting. Dormers, Additions, Penthouses An Administrative Certificate of Appropriateness shall be required for the construction or enlargement of existing dormers, penthouses or horizontal or vertical additions provided that the new construction is not visible from a public right-of-way. Exploratory and Investigative Work An Administrative Certificate of Appropriateness shall be required for the removal of a limited amount of non-historic material to conduct investigation about the historic structure and to determine the existence of underlying historic material. This work will be limited to no more than 20% of the total surface area on the primary façade (excluding window openings) and the area must be stabilized and protected after the investigation is complete. A Certificate of Appropriateness shall not be required for the equivalent removal at the rear or secondary façades of non-historic material for exploratory purposes regardless of visibility. Fences A Certificate of Appropriateness shall not be required for the construction or replacement of rear or side yard fences provided that the fence is not directly adjacent to a public right-of- way, including Duboce Park. An Administrative Certificate of Appropriateness shall be required for new or replacement fences that are directly adjacent to Duboce Park or other public right-of-way. Mills Act Contract An Administrative Certificate of Appropriateness shall be required for work described in an approved Mill's Act Rehabilitation/Restoration/Maintenance Plan that has been reviewed and endorsed by the Historic Preservation Commission, approved by the Board of Supervisors, and determined to meet the Secretary of the Interior's Standards. Ordinary Maintenance and Repair A Certificate of Appropriateness shall not be required if the proposed work consists of ordinary maintenance and repair, as defined in Section 1005(e)(3) of the Planning Code. Repair or Replacement of Architectural Details A Certificate of Appropriateness shall not be required for the repair of existing historic ornament (including, but not limited to porticos, porches, cornices, plaster work, tympanum, roofline, and eaves) regardless of visibility from the public right-of-way. See "Ordinary Maintenance and Repair." An Administrative Certificate of Appropriateness shall be required for the in-kind replacement at the primary façade of historic ornament (including, but not limited to porticos, porches, cornices, plaster work, tympanum, roofline, and eaves) that has been previously removed, provided that replacement ornament is determined to be compatible with documented designs and ornament found on the subject building or within the district. Roof Replacement A Certificate of Appropriateness shall not be required for roof replacement provided that the proposed work does not change the roof character, form or structure. Rooftop Equipment (excluding cellular installations) A Certificate of Appropriateness shall not be required for the installation of rooftop equipment provided that the rooftop equipment is not visible from a public right-of-way and that the rooftop equipment is installed in a manner that may be easily removed in the future without disturbing any historic fabric. An Administrative Certificate of Appropriateness shall be required for the installation of visible rooftop equipment (excluding solar panels and related structures) provided that: (a) Proposed rooftop equipment shall be installed in a manner that avoids harming any historic fabric of the building and that may be easily removed in the future without disturbing any historic fabric; and, (b) Proposed rooftop equipment is set back a minimum of 20 feet from the primary street-facing façade; does not result in additional height of more than 5 feet as measured from the base of the equipment; does not cover more than 10% of the total roof area; and is set in from the perimeter walls of the building, and, (c) Proposed skylights, if applicable, shall have a low, flat profile, are mounted flush with the slope of the roof and are setback from the perimeter walls of the building. Skylight frames shall have a powder-coated or painted finish that matches the color of the roof material and the glazing shall be non-reflective. Security Measures Security Measures – Primary Façades: An Administrative Certificate of Appropriateness shall be required for installation or replacement of metal security doors, window grilles, or security gates on primary façades provided that the installation of these measures meet all other requirements of the Planning Code and are installed in a reversible manner that avoids obscuring or damaging exterior character-defining features of the building. Security Measures – All Other Façades: A Certificate of Appropriateness shall not be required for installation or replacement of metal security doors, window grilles, or security gates on rear façades regardless of visibility from the public right-of-way. Seismic Work A Certificate of Appropriateness shall not be required for seismic work that complies with Section 1006.2(a)(1) of the Planning Code. Seismic upgrades that minimize the alteration of character-defining features of a structure are encouraged

r replacement of metal security doors, window grilles, or security gates on rear façades regardless of visibility from the public right-of-way. Seismic Work A Certificate of Appropriateness shall not be required for seismic work that complies with Section 1006.2(a)(1) of the Planning Code. Seismic upgrades that minimize the alteration of character-defining features of a structure are encouraged. Siding An Administrative Certificate of Appropriateness shall be required for the replacement of non-historic siding with wood siding, provided that the replacement siding is determined to be compatible with documented historic siding (extant or not) found on the subject building or within the district. Signs & Awnings An Administrative Certificate of Appropriateness shall be required for new tenant signs and awnings that are compatible in terms of material, location, size, method of attachment, and method of illumination with the property and/or district and meet the following requirements: (a) Proposal does not obscure or cover any exterior character-defining features; and, (b) Proposal includes the removal of any abandoned conduit, outlets, attachment structures, and associated equipment. (c) Proposals for awnings and canopies shall use traditional shapes, forms and materials, and the overall size, shape, and projection from the building shall be in proper proportion and scale to the building and be contained within the window or door opening. In most instances, the only acceptable material for awnings and canopies is canvas; exceptions will be considered if appropriate for historic reasons. Signs or lettering shall be kept to a minimum size. Solar Panels A Certificate of Appropriateness shall not be required for the installation of solar panels. A Certificate of Appropriateness shall not be required for the installation of structures that support solar panels, regardless of visibility, provided that the installation would not require alterations to the building greater than normally required to install a solar energy system, such as: (a) Set with a low profile, and (b) Mounted parallel with the slope of the roof (if roof is sloped greater than 1/12), and (c) Not visible from adjacent street sightlines if on a flat roof, and (d) Set in from the perimeter walls of the building, including the building's primary façade. Windows

Window Repair: The repair and retention of historic windows is encouraged. A Certificate of Appropriateness shall not be required for work to repair or correct deterioration, decay, or damage to existing windows, at any façade, including window glazing, sash, muntins, jambs, pulleys, sills and other historic window components. See "Ordinary Maintenance and Repair." Window Replacement – Primary Façade: A Certificate of Appropriateness shall not be required for window replacement on primary façades provided that the proposed windows match the historic (extant or not) windows in terms of opening size, configuration, material, and all exterior profiles and dimensions. Window Replacement – Rear Façade: A Certificate of Appropriateness shall not be required for window replacement on non-visible rear façades within the existing openings. A Certificate of Appropriateness shall not be required for window replacement on visible rear façades provided that the replacement windows are compatible in terms of material and configuration. Window Openings – Non-Visible Rear Façade: A Certificate of Appropriateness shall not be required for the alteration of existing window openings, or the insertion of new window openings, at rear façades that are not visible from public rights-of-way. Window Openings – Visible Rear Façade: A Certificate of Appropriateness shall not be required for the modification of existing openings provided that such openings are not enlarged more than 50% of the existing opening's size. An Administrative Certificate of Appropriateness shall be required for the insertion of new window openings at visible rear façades. Exterior Alterations or New Construction Excluding the exceptions defined in this Appendix, any exterior change to a contributory or non-contributory building or new construction within the Duboce Park Historic District shall require a Certificate of Appropriateness, pursuant to the provisions of Article 10 , when such work requires a City permit. The following standards shall guide the approval of exterior alterations and new construction: (a) Character of the District. New construction shall complement and support the historic character of the district. Proposals for exterior alterations that result in greater conformity with the character of the district and are based on physical or documented evidence are encouraged. (b) Historic Materials. Exterior alterations or new construction shall not destroy historic materials, features and spatial relationships that characterize the property. Repair and retention of historic windows is encouraged. (c) Compatibility. New construction shall be differentiated from the old and shall be compatible with the historic materials, features, size, scale and proportion, and massing to protect the integrity of the property and its environment, and shall conform to the following provisions: 1. Style. New construction shall be compatible with the character-defining features of the district, yet is contemporary in design. 2. Scale and Proportion. New construction shall be compatible with the massing, size, and scale of the adjacent contributing buildings within the district. 3. Setbacks. New construction shall conform to existing setback patterns found in adjacent buildings and within the district. 4. Roofline. Gabled, cross-gabled, or hipped roof forms or flat roofs with projecting cornices are common within the district and new construction shall reference the massing and form of adjacent buildings. 5. Dormers and Additions. The enlargement or construction of dormers, penthouses and horizontal or vertical additions shall be designed in a manner that requires minimal change to the character-defining features of the subject building and the district in terms of materials, fenestration, cladding, massing and ornamentation. 6. Garages. The insertion of a garage shall minimize the physical and visual impacts on the character-defining features of the existing building and front yard setting. The design of garages and garage doors shall be unobtrusive and simple. Double-hinged doors with panels and multi-lights are in keeping with the character of the district and are encouraged. 7. Driveways and Front Yard Setbacks. The addition of new driveways shall minimize the removal of landscaping and include permeable paving materials in order to minimize disruption to front yard setbacks and the character-defining features of the subject building and the district. 8. Details. Architectural details on new construction shall be contemporary, yet compatible with the character-defining features found on the contributing buildings within the district. Demolition With the exception of ancillary buildings as defined in this Appendix, the demolition of a contributory or non-contributory building within the district shall require a Certificate of Appropriateness. Interior Block Park Entrances The following scopes of work that mayor may not require a building permit at the interior block Duboce Park entrances at Potomac Street, Pierce Street, and Carmelita Street shall be subject to the procedures, requirements, controls and standards of Article 10 of the Planning Code as outlined below. The following standards shall guide the review of work to the interior block Duboce Park entrances: (a) All work shall be compatible with the historic materials, features, size, scale and proportion to protect the integrity of these historic park entrances. (b) Retention of historic rustic steps and Serpentine rock retaining walls is encouraged. (c) Unobstructed views from the interior block Park entrances to the larger expanse of the park are encouraged. (d) Alterations to return previously modified portions of the entrances to their historic rustic character are encouraged. Ordinary Maintenance and Repair: A Certificate of Appropriateness shall not

of historic rustic steps and Serpentine rock retaining walls is encouraged. (c) Unobstructed views from the interior block Park entrances to the larger expanse of the park are encouraged. (d) Alterations to return previously modified portions of the entrances to their historic rustic character are encouraged. Ordinary Maintenance and Repair: A Certificate of Appropriateness shall not be required for ordinary maintenance and repair – defined as any work, the sole purpose and effect of which is to correct or repair deterioration, decay, or damage – of the rustic steps, Serpentine rock retaining walls, adjacent sidewalks, park pathways, or street rights-of-way. Landscaping: A Certificate of Appropriateness shall not be required for new plantings, pruning, or changes to vegetation within the Park's interior block Park entrances' buffer zones. Nothing in this legislation shall be construed to regulate maintenance or changes to vegetation within Duboce Park. Emergency Repair: A Certificate of Appropriateness shall not be required for emergency repair of unsafe or dangerous conditions of the rock wall and steps. Minor Repair or In-Kind Replacement: A Certificate of Appropriateness shall not be required for minor repair of the rustic steps or the in-kind replacement of Serpentine rock at the retaining walls. All Other Alterations: A Certificate of Appropriateness shall be required for all other alterations to the rustic steps, rock retaining walls, and area within the buffer zone. (Added by Ord. 107-13 , File No. 130070, App. 6/13/2013, Eff. 7/13/2013) SEC. 9. SIGNIFICANCE OF INDIVIDUAL BUILDINGS TO THE HISTORIC DISTRICT. Each building within the Duboce Park Historic District is assigned to either of the two following categories. Contributory. This category identifies buildings. which date from the Historic District's period of significance and retain their historic integrity. These structures are of the highest importance in maintaining the character of the Historic District. The maximum suspension period allowable under Article 10 shall be imposed on applications for demolition of Contributory buildings. The following buildings and interior block park entrances are deemed Contributory to the Historic District: APN From St. # To St. # Street Name Date Built APN From St. # To St. # Street Name Date Built 0863-009 49 49 Carmelita St. 1899 0864-011 50 52 Carmelita St. 1899 0863–008 53 53 Carmelita St. 1899 0863-007 57 57 Carmelita St. 1899 0864-013 58 58 Carmelita St. 1899 0864-014 60 62 Carmelita St. 1899

0863-006 61 61 Carmelita St. 1899 0863-005 65 65 Carmelita St. 1899 0864-015 66 66 Carmelita St. 1899 0863-004 69 69 Carmelita St. 1899 0864-016 70 70 Carmelita St. 1899 0863-003 73 73 Carmelita St. 1899 0863-002 77 77 Carmelita St. 1899 0864-018 78 78 Carmelita St. 1899 0865-011 46 48 Pierce St. 1899 0864–010 47 47 Pierce St. 1899 0864-009 49 51 Pierce St. 1899 0865-012 52 52 Pierce St. 1899 0864-008 55 55 Pierce St. 1899 0865-013 56 56 Pierce St. 1899 0864-007 59 59 Pierce St. 1899 0865-014 60 60 Pierce St. 1899 0864-006 63 65 Pierce St. 1899 0865-015 64 64 Pierce St. 1899 0864-005 67 67 Pierce St. 1899 0865-016 68 68 Pierce St. 1899 0864-004 71 71 Pierce St. 1899 0865-017 72 72 Pierce St. 1899 0864-003 75 75 Pierce St. 1899 0865-018 76 76 Pierce St. 1901 0864-002 79 79 Pierce St. c. 1901 0866-010 44 48 Potomac St. c. 1900 0865-026, 027, 028 47 51 Potomac St. 1901 0866-011 50 54 Potomac St. 1900 0865-009 53 57 Potomac St. 1901 0866-012 56 56 Potomac St. 1899 0865-008 59 59 Potomac St. 1900 0866-013 60 60 Potomac St. 1899 0865-006 63 63 Potomac St. 1899 0866-014 64 64 Potomac St. 1899 0865-005 65 65 Potomac St. 1899 0866-015 66 66 Potomac St. 1900 0865-004 67 67 Potomac St. 1899 0866-016 68 68 Potomac St. 1900 0865-003 69 69 Potomac St. c. 1900 0866-017 70 70 Potomac St. 1901 0865-029 71 75 Potomac St. 1900 0866-018 72 76 Potomac St. c. 1905 (visual) 0866-019 82 86 Potomac St. 1911 0866-009 101 105 Steiner St. 1903 0866-008 107 111 Steiner St. 1907 0866-007 115 115 Steiner St. 1902 0866-006 121 125 Steiner St. 1902 0866-005 127 131 Steiner St. 1903 0866-002 133 135 Steiner St. c. 1899 0866-001 501 505 Waller St. 1901 0866-024 511 511 Waller St. 1902 0866-023 515 517 Waller St. 1902 0866-022 521 525 Waller St. c. 1900 0866-021 527 531 Waller St. 1902 0866-020A 533 537 Waller St. 1904 0866-020 539 539 Waller St. c. 1905 0865-025 563 567 Waller St. 1900 0865-023 579 579 Waller St. 1900 0865-022 581 581 Waller St. 1900 0865-021 587 587 Waller St. 1900 0865-020 591 595 Waller St. 1902 0864-026 601 601 Waller St. 1900 0864-025 607 609 Waller St. 1900 0864-024 611 617 Waller St. 1899 0864-023 621 621 Waller St. 1900 0864-022 627 627 Waller St. 1899 0864-021 633 633 Waller St. 1899 0864-020 639 639 Waller St. 1900 0864-019 643 643 Waller St. 1900

0863-013, 014, 015 661 663 Waller St. 1902 0863-012 667 667 Waller St. 1900 0863-011 673 675 Waller St. 1900 0863-016 679 681 Waller St. 1900 Carmelita Street interior block park entrance Pierce Street interior block park entrance Potomac Street interior block park entrance For the purpose of Article 10 , the park entrances at Potomac Street, Pierce Street, and Carmelita Street are defined as the steps, rock walls, and a surrounding 10-foot buffer. The buffer area includes the sidewalks, street rights of way and area within the park directly adjacent to the steps and rock walls.

Noncontributory. This category identifies buildings which postdate the Historic District's period of significance and/or no longer retain sufficient integrity to convey significance. Demolition permit applications for these buildings will be processed without reference to the suspension provisions of Article 10 . Alterations to Noncontributory buildings would require Certificate of Appropriateness review in order to ensure that alterations and new construction would be compatible with the historic character of the District in terms of scale, massing, fenestration, materials and detail. The remaining buildings shall be deemed to be Noncontributory within the Historic District: APN From St. # To St. # Street Name Year Built APN From St. # To St. # Street Name Year Built 0864-012 54 54 Carmelita St. 1899 0864-017 74 74 Carmelita St. c. 1899 0865-019 80 80 Pierce St. c. 1899 0865-007 61 61 Potomac St. 1900 0866-003 137 137 Steiner St. 1902 0866-004 139 141 Steiner St. 2009 0865-033 569 573 Waller St. 1900 0865-001 559 561 Waller St. c. 1905

(Added by Ord. 107-13 , File No. 130070, App. 6/13/2013, Eff. 7/13/2013)