Title 8 — ZONING & DEVELOPMENT CODE
Chapter 8.44 — A3, FLORICULTURAL DISTRICTS
San Mateo County Zoning Code · 2026-06 edition · updated 2026-07-25 · San Mateo County
8.44.010 Regulations for “A-3” Districts. ¶
The following regulations shall apply in all “A-3” Districts and shall be subject to all applicable provisions of Article 2 (Development Procedures) and Article 3 (General Development Standards) of Title 8.
(Prior Code § 6221; Ord 2139 – 03/28/72)
8.44.020 Uses Permitted. ¶
(a) Nurseries and green houses used only for the propagating and cultivating of plants, provided that no retail sales shall be allowed.
(b) One-family dwellings which are accessory to the uses permitted in paragraph (a) of this section.
(c) Accessory buildings customarily incidental to the permitted uses including buildings for help employed on the premises.
(d) Temporary Trailer Parks for Seasonal Farm Labor which are not to be occupied more than six months in any one year. The Planning Commission shall establish standards for such trailer parks and may provide standards of construction of improvements, subject to the securing of a use permit in accordance with the provisions of Chapter 8.280 of Title 8.
(e) The following uses, subject to the securing of a use permit in each case:
- Facilities normally related to the processing, packaging, shipping and wholesaling of floricultural products.
Prior Code § 6222, 6224; Ord 1483 – 10/10/61)
8.44.030 Building Site Area Required. ¶
Each one-family dwelling together with its accessory buildings hereafter erected shall be located on a building site having an area of not less than one (1) acre and an average width of one hundred and fifty (150) feet provided, however, that two (2) dwellings may be constructed on a parcel where the ownership is at least three (3) acres; for each additional three (3) acres of ownership an additional dwelling may be constructed up to a total of four (4) dwelling units.
(Prior Code § 6221,6223; Ord 1691 – 03/02/65
8.44.040 Yards Required. ¶
In any A-3 district, all structures shall be located at least 25 feet from the front property line, 10 feet from the side property line, and 20 feet from the rear property line.
(Prior Code § 6222, 6224; Ord 1483 – 10/10/61)
(Prior Code § 6224; Ord 1661 – 07/21/64)
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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.