Title 8 — ZONING & DEVELOPMENT CODE
Chapter 8.64 — O, OFFICE DISTRICTS
San Mateo County Zoning Code · 2026-06 edition · updated 2026-07-25 · San Mateo County
8.64.010 - Regulations for “O” Districts. ¶
The following regulations shall apply in all “O” Districts and shall be subject to all applicable provisions of Article 2 (Development Procedures) and Article 3 (General Development Standards) of Title 8..
8.64.020 - Uses Permitted. ¶
(a) All uses permitted in R-1 and R-2 Districts, except animal fanciers and catteries. A use permit, as provided in Chapter 8.280 of Title 8, shall be required for any use which requires a use permit in an R-1 District, except that no new single-family structures shall be permitted. Single-family structures existing at the time of the adoption of this Chapter may be replaced if destroyed or damaged.
(b) Multiple-family dwellings and dwelling groups.
(c) The following uses subject to the securing of a use permit in each case as provided in Chapter 8.280 of this Title 8.
Offices.
Medical and dental clinics.
Prescription pharmacies in connection with medical offices providing there is no exterior entrance.
(Prior Code § 6246(a); Ord 3436 – 11/10/92 )
8.64.030 - Development Standards. ¶
(a) Front, side and rear yard setbacks, height limitation and maximum lot coverage shall conform to the requirements of the combined “S” District.
(b) The required front yard setback shall not be used for parking area. There shall be no storage or parking of commercial or industrial vehicles on the site except for the purpose of loading or unloading.
(c) Buildings may not be used for residential and non-residential use at the same time.
(d) No sales or merchandising shall be permitted except for prescription pharmacies. There shall be no display of merchandise or products whether in a display window or in any other manner visible from the exterior of any building.
(e) There shall be no storage, warehousing, handling, processing or assembling of merchandise or products, except as specifically provided for herein.
(f) There shall be no on-site advertising; provided, however, that a single non-illuminated sign may be used to identify an office building if the sign does not extend above the cornice or eaves and is not freestanding. The sign shall be limited in size to an area of two (2) square feet per office or suite of offices, but shall not exceed a total area of twenty (20) sq. ft. In addition, each office or suite of offices may have an identification sign not exceeding one (1) sq. ft. in area, placed flat against the building.
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▸ Title 8 — ZONING & DEVELOPMENT CODE
Overview- Article 1 — ZONING DISTRICTS, OVERLAY, AND COMBINING DISTRICTS
- Chapter 8.04 — ZONING GENERAL PROVISIONS
- Chapter 8.08 — DISTRICTS
- Chapter 8.12 — RE, RESIDENTIAL ESTATES
- Chapter 8.16 — R1, ONE-FAMILY RESIDENTIAL DISTRICTS
- Chapter 8.20 — R1-CCP, COUNTRY CLUB PARK
- Chapter 8.24 — R2, TWO-FAMILY RESIDENTIAL DISTRICT
- Chapter 8.28 — R3, MULTIPLE-FAMILY RESIDENTIAL DISTRICT
- Chapter 8.32 — R3-A, AFFORDABLE HOUSING DISTRICT
- Chapter 8.34 — PUD, PLANNED UNIT DEVELOPMENT DISTRICT
- Chapter 8.36 — A1, AGRICULTURAL DISTRICT
- Chapter 8.40 — A2, EXCLUSIVE AGRICULTURE DISTRICTS
- Chapter 8.44 — A3, FLORICULTURAL DISTRICTS
- Chapter 8.48 — COSC, COMMUNITY OPEN SPACE CONSERVATION DISTRICT
- Chapter 8.52 — EG, EL GRANADA GATEWAY DISTRICT
- Chapter 8.56 — P, PARKING DISTRICT
- Chapter 8.60 — H1, LIMITED HIGHWAY FRONTAGE DISTRICT
- Chapter 8.64 — O, OFFICE DISTRICTS
- Chapter 8.68 — C1, NEIGHBORHOOD BUSINESS DISTRICTS
- Chapter 8.70 — C1/NFO DISTRICT, NEIGHBORHOOD BUSINESS DISTRICT…
- Chapter 8.72 — C1/WMP District (NEIGHBORHOOD COMMERCIAL/WEST M…
- Chapter 8.76 — C2, GENERAL COMMERCIAL DISTRICTS
- Chapter 8.78 — C2, GENERAL COMMERCIAL DISTRICTS NORTH FAIR OAKS
- Chapter 8.82 — CCR, (COASTSIDE COMMERCIAL RECREATION DISTRICT)
- Chapter 8.86 — M1 (LIGHT INDUSTRIAL DISTRICTS)
- Chapter 8.88 — M1/NFO DISTRICT (MIXED-USE INDUSTRIAL/NORTH FAI…
- Chapter 8.90 — M1/EDISON/NFO” DISTRICT (MIXED-USE INDUSTRIAL/E…
- Chapter 8.94 — M2, HEAVY INDUSTRIAL DISTRICTS
- Chapter 8.98 — W, WATERFRONT DISTRICT
- Chapter 8.102 — I/NFO, INSTITUTIONAL/NORTH FAIR OAKS DISTRICT
- Chapter 8.106 — PAD DISTRICT, PLANNED AGRICULTURAL DISTRICT
- Chapter 8.110 — RH, RESIDENTIAL HILLSIDE DISTRICT
- Chapter 8.114 — PC DISTRICT (PLANNED COLMA DISTRICT)
- Chapter 8.118 — CMU-1 DISTRICT (COMMERCIAL MIXED USE-1 DISTRIC…
- Chapter 8.122 — CMU-2 DISTRICT (COMMERCIAL MIXED USE-2 DISTRIC…
- Chapter 8.126 — CMU-3 DISTRICT (COMMERCIAL MIXED USE-3 DISTRIC…
- Chapter 8.130 — NMU DISTRICT (NEIGHBORHOOD MIXED-USE DISTRICT,…
- Chapter 8.132 — NMU-ECR DISTRICT (NEIGHBORHOOD MIXED USE DISTR…
- Chapter 8.134 — RM DISTRICT (RESOURCE MANAGEMENT DISTRICT)
- Chapter 8.138 — RM-CZ DISTRICT (RESOURCE MANAGEMENT DISTRICT- …
- Chapter 8.142 — TPZ, TIMBERLAND PRESERVE ZONE
- Chapter 8.146 — TPZ-CZ, TIMBERLAND PRESERVE ZONE, COASTAL ZONE
- Chapter 8.150 — “S” DISTRICTS 1 to 13 (COMBINING DISTRICTS 1-13)
- Chapter 8.154 — S17 DISTRICT (COMBINING DISTRICT, MIDCOAST)
- Chapter 8.158 — S50 DISTRICT (COMBINING DISTRICT, NORTH FAIR O…
- Chapter 8.162 — S71 DISTRICT (COMBINING DISTRICT, DEVONSHIRE)
- Chapter 8.166 — S72 DISTRICT (COMBINING DISTRICT, WEST MENLO P…
- Chapter 8.170 — S73 DISTRICT (COMBINING DISTRICT, NORTH FAIR O…
- Chapter 8.174 — S74 DISTRICT (COMBINING DISTRICT, SELBY NEIGHB…
- Chapter 8.178 — S75 DISTRICT (COMBINING DISTRICT, WEEKEND ACRES)
- Chapter 8.182 — S81 DISTRICT (COMBINING DISTRICT, SAN MATEO HI…
- Chapter 8.186 — S82 DISTRICT (COMBINING DISTRICT, WEST MENLO P…
- Chapter 8.190 — S83 DISTRICT (COMBINING DISTRICT, LOS TRANCOS …
- Chapter 8.194 — S90 DISTRICT (COMBINING DISTRICT, MENLO OAKS)
- Chapter 8.198 — S91 DISTRICT (COMBINING DISTRICT, PALOMAR PARK)
- Chapter 8.202 — S92 DISTRICT (COMBINING DISTRICT, WEST MENLO P…
- Chapter 8.204 — S93 DISTRICT (COMBINING DISTRICT, NORTH FAIR O…
- Chapter 8.212 — S95 DISTRICT (COMBINING DISTRICT, LADERA)
- Chapter 8.216 — S100 DISTRICT (COMBINING DISTRICT, MENLO OAKS)
- Chapter 8.220 — S101 DISTRICT (COMBINING DISTRICT, PALOMAR PARK)
- Chapter 8.224 — S102 DISTRICT (COMBINING DISTRICT, DEVONSHIRE)
- Chapter 8.228 — S104 DISTRICT (COMBINING DIESTRICT, LADERA)
- Chapter 8.232 — S105 DISTRICT (COMBINING DISTRICT, MIDCOAST)
- Chapter 8.236 — S106 DISTRICT (COMBINING DISTRICT, LADERA)
- Chapter 8.240 — S108 DISTRICT (COMBINING DISTRICT, LOS TRANCOS…
- Chapter 8.244 — S110 DISTRICT (COMBINING DISTRICT, LADERA)
- Chapter 8.248 — AO DISTRICT (AIRPORT OVERLAY DISTRICT)
- Chapter 8.252 — CD DISTRICT (COASTAL DEVELOPMENT DISTRICT)
- Chapter 8.256 — DR DISTRICTS (DESIGN REVIEW DISTRICTS)
- Chapter 8.260 — MH DISTRICTS (MOBILE HOME PARKS)
- Chapter 8.264 — GH DISTRICT (GEOLOGIC HAZARDS DISTRICT REGULAT…
- Chapter 8.272 — E DISTRICT (ENTERTAINMENT OVERLAY DISTRICT)
- Chapter 8.276 — APPROVED SS & PUD DISTRICT REGULATIONS (SPECIA…
- Chapter 8.280 — USE PERMITS.
- Chapter 8.284 — LEGAL LOT REQUIREMENT, ZONING & BUILDING VIOLA…
- Chapter 8.288 — MAJOR DEVELOPMENT PRE-APPLICATION PROCEDURES.
- Chapter 8.292 — RM DEVELOPMENT REVIEW CRITERIA
- Chapter 8.294 — RM-CZ DEVELOPMENT REVIEW CRITERIA
- Chapter 8.296 — DEVELOPMENT REVIEW PROCEDURE
- Chapter 8.300 — FLOOD HAZARD AREAS
- Chapter 8.304 — ARCHITECTURAL SUPERVISION
- Chapter 8.308 — NORTH FAIR OAKS DESIGN REVIEW AND SITE DEVELOP…
- Chapter 8.312 — ZONING, REZONING, LAND DIVISION, IN THE TIMBER…
- Chapter 8.314 — LAND MANAGEMENT PLANNING REQUIREMENTS FOR USES…
- Chapter 8.316 — ZONING, REZONING, LAND DIVISION IN THE TIMBERL…
- Chapter 8.318 — LAND MANAGEMENT PLANNING REQUIREMENTS FOR USES…
- Chapter 8.320 — VARIANCES AND HOME IMPROVEMENT EXCEPTIONS
- Chapter 8.324 — ACCESSORY USES PERMITTED IN ANY “R” DISTRICT.
- Chapter 8.328 — STANDARDS FOR INDUSTRIAL USES IN THE C-1,C-2,M…
- Chapter 8.332 — FENCES, HEDGES, WALLS, HEIGHT & EXCEPTIONS
- Chapter 8.336 — HEIGHT: GENERAL PROVISIONS AND EXCEPTIONS.
- Chapter 8.340 — YARDS: GENERAL PROVISIONS AND EXCEPTIONS
- Chapter 8.344 — OFF-STREET PARKING STANDARDS
- Chapter 8.348 — ACCESSORY BUILDINGS
- Chapter 8.352 — SPECIAL SETBACK LINES
- Chapter 8.356 — HEIGHT OF STRUCTURES AND USES OF AIRSPACE NEAR…
- Chapter 8.358 — HEIGHT OF STRUCTURES AND USE AIRSPACE NEAR SAN…
- Chapter 8.360 — DEVELOPMENT ON LANDS CONTIGUOUS TO RM, RM-CZ, …
- Chapter 8.364 — ROAD IMPROVEMENT REQUIREMENTS IN THE SKYLINE A…
- Chapter 8.368 — SHORT-TERM RENTALS (COASTAL ZONE)
- Chapter 8.372 — CHILD CARE CENTERS
- Chapter 8.376 — WIRELESS TELECOMMUNICATION FACILITIES
- Chapter 8.380 — KEEPING OF ANIMALS & DOMESTIC POULTRY IN
- Chapter 8.384 — CONFINED ANIMAL REGULATIONS
- Chapter 8.388 — ZONING NONCONFORMITIES
- Chapter 8.392 — ACCESSORY DWELLING UNITS
- Chapter 8.396 — ACCESSORY DWELLING UNITS, COASTAL ZONE
- Chapter 8.400 — SIGNIFICANT TREE REGULATIONS
- Chapter 8.404 — HERITAGE TREE REGULATIONS
- Chapter 8.408 — REGULATION OF TIMBER HARVESTING
- Chapter 8.412 — TOPSOIL SITE REGULATIONS
- Chapter 8.416 — SURFACE MINING AND RECLAMATION
- Chapter 8.420 — QUARRIES
- Chapter 8.424 — OIL AND GAS WELL REGULATIONS
- Chapter 8.428 — HISTORIC PRESERVATION PERMITS AND PROCEDURES.
- Chapter 8.432 — INCLUSIONARY REQUIREMENTS FOR AFFORDABLE HOUSING
- Chapter 8.436 — DENSITY BONUS
- Chapter 8.440 — ESTABLISHMENT OF FEES
- Chapter 8.444 — AMENDMENTS
- Chapter 8.448 — FORM OF PETITION, APPLICATIONS, AND APPEALS.
- Chapter 8.452 — ENFORCEMENT, LEGAL PROCEDURES, PENALTIES.