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Title 27 — ZONING

Chapter 27.39 — CBD SUPPORT DISTRICT— CENTRAL BUSINESS DISTRICT SUPPORT

San Mateo Zoning Code · 2026-06 edition · updated 2026-07-25 · San Mateo

27.39.010 PURPOSE—INTENT.

The purpose of the CBD Support District is to encourage commercial uses which both support traditional downtown (CBD) uses as well as serve adjacent residential neighborhoods. It is intended that the commercial uses in this area will serve as a link between the Gateway and CBD. Residential uses will also be encouraged in order to provide housing opportunities for downtown employees, as well as existing and future residents.

27.39.020 PERMITTED USES.

Unless otherwise provided in this title, uses of buildings or land in this district and buildings hereafter erected, structurally altered or enlarged shall be limited to the following uses:

  • (1) Any use permitted in the CBD District.

27.39.030 SPECIAL USES.

The following uses may also be permitted if their site locations and proposed development plans are first approved as provided in chapters 27.06 through 27.12, 27.62, 27.72, 27.78 and 27.80:

  • (1) Any of the special uses in the CBD District, in addition to:

    • (a) Automobile service stations.

(b) Fast food restaurants, including drive-through and drive-in service, subject to the following design criteria in addition to the standards required under this chapter:

(i) New construction should incorporate dominant architectural elements, colors and materials common to nearby buildings.

(ii) The building's street facade shall provide visual interest through the use of transparent windows or architectural detailing.

(iii) Pedestrian access shall be encouraged through the use of recessed doors and windows, awnings, street trees and sidewalk furniture.

(iv) Landscaping shall be used to screen drive-through or drive-in aisles from the public right of way and shall be used to minimize the visual impact of readerboard signs and directional signs.

(v) The driveway shall be designed to minimize conflicts between pedestrians and vehicles, and shall provide adequate site visibility.

(vi) A litter control plan shall be submitted with an application. The litter control plan shall indicate the location of trash receptacles and provisions for employee maintenance of the site.

(Ord. No. 1993-7 § 1.)

Cross References Section 27.39.090(2)b.

27.39.040 CONDITIONS OF USE.

All non-residential uses permitted in this chapter shall be subject to the following conditions:

(a) There shall be no manufacturing, processing or treatment of products other than those which are clearly incidental and essential to the retail business conducted on the same premises.

(b) All permitted uses in this district shall be conducted without objection from adjoining users due to odor, dust, smoke, noise, vibration, or other similar cause.

(c) Any exterior sign displayed shall pertain only to a use conducted within the building.

(d) All uses, including storage of equipment, materials, supplies and commercial vehicles for off-site business permitted under this chapter shall be conducted wholly within an enclosed building, except as may be specifically authorized by special permit or an accessory use to an approved permitted or special use.

27.39.050 OFF-STREET PARKING AND LOADING.

Automobile parking and loading facilities shall be provided as required or permitted in Chapter 27.64.

27.39.060 MAXIMUM FLOOR AREA RATIO—LOT COVERAGE.

Maximum floor area ratio and lot coverage shall be required and calculated as in Section 27.38.060.

27.39.070 MAXIMUM BUILDING HEIGHT AND BULK.

Structures in this zoning district shall not exceed the maximum height and bulk as set forth in Chapter 27.40 Building Height and Bulk Overlay District and the Building Height Plan of the General Plan.

27.39.080 OPEN SPACE REQUIREMENTS.

Open space shall be provided as designated in Section 27.38.090.

27.39.090 BUILDING LINE AND SETBACK STANDARDS.

Building line and setback standards shall be as designated in Section 27.38.100 except as follows:

(1) A setback of up to ten (10) feet for landscaping may be provided within front or street side yards. New development shall be built to the property line where a structure on an abutting

property, on the same side of the street, is built to the front or street side property lines.

(2) On streets not designated as Required Retail Frontage, a building may be set back from the street to accommodate the following uses:

a. automobile service stations, subject to the standards contained in Chapter 27.77;

b. fast food restaurants with drive-through facilities, subject to the standards contained in Section 27.39.030.

27.39.100 REQUIRED RETAIL FRONTAGE.

Within the Required Retail Frontage area as shown on the Downtown Specific Plan land use map, the requirements of Section 27.38.110 shall apply, except as follows:

(a) Surface parking shall not be permitted within fifty (50) feet of property lines designed for Required Retail Frontage and shall be required to be located behind a building meeting the requirements of this title, except when the following conditions are met:

(1) A building of at least 8,000 square feet exists on site and the parking will be located between the building and property line:

(2) The surface parking is being provided to fulfill requirements for uses within the existing building;

(3) The area to be paved for surface parking is unimproved; and

(4) At least 6 feet and up to a maximum of 10 feet of landscaping is installed between the property line and the surface parking lot for screening.

(b) Temporary (a maximum of 5 years) surface parking in a City or City agency owned parking lot shall be permitted. A minimum of six feet of landscaping shall be installed between the property line and any surface parking.

27.39.110 BUFFERS.

Where a CBD Support zoned plot abuts any residential district, buffers as required in Section 27.38.120 shall be provided.

27.39.120 RESIDENTIAL DEVELOPMENT STANDARDS.

In this district, residential uses shall be permitted as part of mixed-use developments, subject to the City's Objective Design Standards as adopted by resolution of the City Council and requirements of Section 27.38.130.

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Contents — San Mateo Zoning Code
San Mateo Zoning Code
  1. Title 27 — ZONING
    Overview
    1. Chapter 27.02 — GENERAL PROVISIONS
    2. Chapter 27.04 — DEFINITIONS
    3. Chapter 27.06 — ADMINISTRATION
    4. Chapter 27.08 — RULES OF PROCEDURE
    5. Chapter 27.10 — REVIEW PROCEDURE
    6. Chapter 27.12 — FEES
    7. Chapter 27.13 — TRANSPORTATION IMPROVEMENT FEE
    8. Chapter 27.14 — REDEVELOPMENT
    9. Chapter 27.15 — DENSITY BONUS
    10. Chapter 27.16 — RESIDENCE DISTRICTS
    11. Chapter 27.18 — R1 DISTRICTS
    12. Chapter 27.19 — ACCESSORY DWELLING UNITS AND JUNIOR ACCESSORY …
    13. Chapter 27.21 — TWO-UNIT
    14. Chapter 27.24 — R4 DISTRICT—MULTIPLE FAMILY DWELLINGS (HIGH DE…
    15. Chapter 27.26 — R5 DISTRICT—MULTIPLE FAMILY DWELLINGS (HIGH DE…
    16. Chapter 27.27 — RESIDENTIAL
    17. Chapter 27.28 — DOWNTOWN
    18. Chapter 27.29 — RESIDENTIAL OVERLAY DISTRICT—MIXED USE
    19. Chapter 27.30 — C1 DISTRICTS— NEIGHBORHOOD COMMERCIAL
    20. Chapter 27.32 — C2 DISTRICTS—
    21. Chapter 27.34 — C3 DISTRICTS—
    22. Chapter 27.36 — C4 DISTRICTS
    23. Chapter 27.38 — CBD DISTRICTS— CENTRAL BUSINESS DISTRICT
    24. Chapter 27.39 — CBD SUPPORT DISTRICT— CENTRAL BUSINESS DISTRIC…
    25. Chapter 27.40 — BUILDING HEIGHT AND BULK
    26. Chapter 27.44 — E1 DISTRICTS—EXECUTIVE PARK
    27. Chapter 27.48 — E2 DISTRICTS —EXECUTIVE OFFICES
    28. Chapter 27.54 — MANUFACTURING DISTRICTS
    29. Chapter 27.56 — M1 DISTRICTS
    30. Chapter 27.59 — S DISTRICTS
    31. Chapter 27.60 — SPECIAL DISTRICTS
    32. Chapter 27.61 — SC DISTRICTS—SENIOR CITIZEN OVERLAY DISTRICT—S…
    33. Chapter 27.62 — PLANNED DEVELOPMENTS —SPECIAL USE PERMITS
    34. Chapter 27.63 — ADULT ENTERTAINMENT BUSINESSES
    35. Chapter 27.64 — OFF-STREET PARKING AND LOADING
    36. Chapter 27.65 — AMUSEMENT ARCADES AND MACHINES
    37. Chapter 27.66 — HISTORIC PRESERVATION
    38. Chapter 27.67 — OPEN AIR VENDORS
    39. Chapter 27.68 — MAINTENANCE OF PROJECT SITE
    40. Chapter 27.69 — RECYCLING FACILITIES
    41. Chapter 27.70 — ACCESSORY BUILDINGS AND STRUCTURES IN REQUIRED…
    42. Chapter 27.72 — NONCONFORMING BUILDINGS AND USES
    43. Chapter 27.73 — TC DISTRICT—
    44. Chapter 27.74 — SPECIAL USE PERMITS
    45. Chapter 27.75 — MIXED USE CONVENIENCE MARKET/AUTOMOBILE SERVIC…
    46. Chapter 27.76 — PERFORMANCE STANDARDS
    47. Chapter 27.77 — DESIGN REVIEW STANDARDS FOR SERVICE STATIONS
    48. Chapter 27.78 — VARIANCES
    49. Chapter 27.79 — REASONABLE
    50. Chapter 27.80 — AMENDMENTS
    51. Chapter 27.82 — MAPS—BOUNDARY LINES
    52. Chapter 27.83 — SLOPE AND HILLSIDE DEVELOPMENT STANDARDS
    53. Chapter 27.84 — FENCES, TREES AND HEDGES
    54. Chapter 27.85 — DAY CARE CENTERS
    55. Chapter 27.86 — RECYCLING COLLECTION AREAS
    56. Chapter 27.87 — OUTDOOR RESTAURANT SEATING AND MERCHANDISE DIS…
    57. Chapter 27.88 — BAY MEADOWS SPECIFIC PLAN
    58. Chapter 27.90 — TOD DISTRICT— TRANSIT ORIENTED DEVELOPMENT
    59. Chapter 27.92 — HILLSDALE STATION AREA PLAN
    60. Chapter 27.94 — HOUSING

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