Chapter 84.21 — SINGLE-FAMILY RESIDENTIAL DWELLINGS

The purpose of this Chapter is to provide standards for the installation of single-family dwellings. (Ord. 4011, passed - -2007)

The standards in this Chapter apply to the construction or installation of detached single-family residential structures where allowed in compliance with Division 2 (Land Use Zoning Districts and Allowed Land Uses). However, nothing in this Chapter shall be construed to allow housing designs or construction standards that do not meet the standards of a historic district or of a historic landmark. The road dedication and street improvement standards provided in this Chapter do not apply to: (1) the alteration or enlargement of an existing building or structure on a lot or parcel of land if the total square footage of such alteration or enlargement, and all other alterations or enlargements completed three years prior to the date of the application for a permit for such alteration or enlargement, does not exceed one-half of the original square footage of all buildings and structures on such lot or parcel of land, or (2) the erection of one or more accessory structures (not including accessory dwellings) as defined in § 810.01.030(g) of the County Code. For purposes of this section, “original square footage” means the square footage of all buildings and structures that existed on such lot or parcel of land three years prior to the date of the application for such permit. (Ord. 4011, passed - -2007; Am. Ord. 4181, passed - -2012)

(a) Manufactured Home Foundation Systems. Manufactured home foundation systems shall comply with either Health and Safety Code § 18551 or the Code of Regulations §§ 1333 and 1334, and shall include tie down, clip, or anchoring systems approved by an engineer to resist lateral forces for the subject manufactured home.

(b) Siding. Siding material shall consist of stucco, wood, brick, stone, or decorative concrete block. Synthetic products of a similar appearance and equivalent durability shall be allowed. Metal siding, if utilized, shall be nonreflective. The exterior covering material shall extend to a point at or near grade, except if an approved solid wood, metal, concrete, or masonry perimeter foundation is used, the exterior covering material need not extend below the top of the foundation.

(c) Roofing Material. The roofing material shall be tile, composite shingles, wood shakes, and shingles (if allowed by the Fire Safety (FS) overlay or other applicable overlay(s), or other material customarily used in the surrounding community.

(d) Entries and Exits. Entries and exits shall be completed in compliance with the Building Code Chapter 10.

(e) Parcels Greater than 30 Feet in Width and 5,000 Square Feet in Area. Residential structures located on parcels greater than 30 feet in width and greater than 5,000 square feet in area shall comply with the provisions in Subdivisions (a) through (d), above, and the following:

(1) Comply with minimum standards of the California Residential Code or standards for manufactured homes specified below.

(2) A “Tiny Home” may be permitted, provided that it complies with the minimum standards of the California Residential Code or standards for manufactured homes specified below. Recreational vehicles (defined in California Health and Safety Code § 18010) will not be approved for occupancy as a dwelling.

(3) In the Valley Region and Desert Region, residential structures located in a Single Residential (RS) land use zoning district shall have an enclosed garage or carport with minimum interior dimensions of ten feet by 20 feet constructed in compliance with the California Building Code. In compliance with § 83.11.040 (Number of Parking Spaces Required), a second parking space shall be provided that may be uncovered and with the minimum dimensions of nine by 19 feet.

(4) Utility hookups and an area suitable to accommodate the installation of a clothes washer and dryer shall be provided within the primary structure or within an enclosed accessory structure.

(f) Parcels Less than 30 Feet in Width or 5,000 Square Feet in Area. Residential structures located on parcels of 30 feet or less in width or 5,000 square feet or less in area shall comply with the provisions as specified in Subdivisions

(a) through (d), above, and the following:

(1) Comply with minimum standards of the California Residential Code or standards for manufactured homes specified below.

(2) A “Tiny Home” may be permitted, provided that it complies with the minimum standards of the California Residential Code or standards for manufactured homes specified below. Recreational vehicles (defined in California Health and Safety Code § 18010) will not be approved for occupancy as a dwelling.

(g) Reserved.

(h) Where Manufactured Homes Allowed. Manufactured homes installed or constructed in compliance with this Section shall be allowed in land use zoning districts where detached single-family residential structures are allowed.

(i) Certification Tag or Label Required . A permit from the Building and Safety Division for the installation of a manufactured home not within an approved and properly licensed mobile home park shall not be issued, if more than ten years have elapsed between the date of manufacture and the date of the application for the issuance of the permit to install such manufactured home except as provided below. Also, the manufacturer shall permanently affixed a label or tag to the manufactured home certifying that the manufactured home complies with the applicable federal construction and safety standards (42 U.S.C. § 5415) of the National Manufactured Housing Construction and Safety Standards Act of 1974 (42 U.S.C. §§ 5401 et. seq .).

The ten-year standard provided above shall apply to all manufactured homes except when the following findings can be made:

(1) The site for the proposed location of the manufactured home is adequate in terms of shape and size to accommodate the use and all parking areas, setbacks, structure coverage, yards, and other applicable requirements of this Development Code;

(2) The California Department of Housing and Community Development has determined and certified that the manufactured home proposed for installation substantially conforms to the construction standards regarding health, accessibility, life and fire safety and structural requirements applicable to manufactured homes less than ten years old; and

(3) The appearance of the manufactured home and the method of siting are compatible with the appearance of any primary structure and the structures in the surrounding neighborhood.

(j) Infrastructure Requirements. A building permit shall not be issued for the construction of single-family residential dwelling unless all of the following infrastructure requirements are satisfied for an existing lot of record:

(1) Proof of Legal and Physical Access to a County-maintained Road.

(A) Physical access is a route which is traversable in a standard (two-wheel drive) sedan. Proof shall consist of an Engineer or Surveyor's signed and sealed letter, certifying that physical access has been completed.

(B) Legal access is:

(I) A dedicated right-of-way;

(II) A dedication to the County of San Bernardino and to the public in general, an easement for public road, County highway and public utility purposes of a width as established by the Circulation Element of the General Plan. The easement or road constructed on the dedicated land shall not become a County highway until and unless the Board of Supervisors, by appropriate resolution, has caused the road to be accepted into the County-maintained road system. (III) An existing traveled way that is substantially in compliance with County road standards, where a prescriptive right by the user has been established for the public use by court decree.

(IV) Private road easement.

(C) When legal access cannot be established as set forth above, the lot is an existing legally created parcel, and the property owner has physical access, the property owner shall enter into an agreement with the County. The agreement shall be in the form required by the County which includes the property owner's: (1) representation that the owner has physical access; (2) acknowledgment that proof of legal access has not been provided to the County's satisfaction; and, (3) agreement to disclose to any subsequent owners that legal access has not been established to the satisfaction of the County. Notation of said agreement shall also be included on the building permit.

(2) Infrastructure as Determined by the Land Development Division of the Land Use Service Department Depending on the Location of the Parcel to Be Developed. This may include, but not limited to, any of the following: paved access, curbs and gutters, sidewalk, and/or appropriate drainage improvements. These requirements may be waived or modified by the Director if at least 70 percent of the parcels in the same block have been developed without full street improvements.

(3) Water.

(A) Water Purveyor. Required when in the service area of a water purveyor and the purveyor can supply the water.

(B) Substantiated Well Water. If the subject parcel is not within the service area of a water purveyor, well water may be allowed if all required setbacks are met.

(C) Hauled Water. No hauled water will be allowed without approval from the Division of Environmental Health Services.

(4) Sanitation.

(A) Sewer. Required when in the service area of a sewer provider and the subject parcel is within 200 feet of the sewer line.

(B) Septic Systems/Holding Tanks. Allowed in compliance with the local Regional Water Quality Control Board regulations.

(5) Fireflow. Adequate fireflow in compliance the Uniform Fire Code and with § 23.0108 (Amendments to the Uniform Fire Code) of the County Code.

(Ord. 4011, passed - -2007; Am. Ord. 4043, passed - -2008; Am. Ord. 4057, passed - - 2008; Am. Ord. 4085, passed - -2009; Am. Ord. 4334, passed - -2017; Am. Ord. 4341, passed - -2018; Am. Ord. 4360, passed - -2019; Am. Ord. 4393, passed - -2020)