Title 8 — ZONING & DEVELOPMENT CODE
Chapter 8.198 — S91 DISTRICT (COMBINING DISTRICT, PALOMAR PARK)
San Mateo County Zoning Code · 2026-06 edition · updated 2026-07-25 · San Mateo County
8.198.010 - Regulations For “S-91” Combining District (Palomar Park). ¶
The following regulations shall apply in any single-family residential district with which the “S-91” District is combined.
8.198.020 - Building Site Width. ¶
The minimum building site width shall be an average of 50 feet.
8.198.030 - Building Site Area. ¶
The minimum building site area shall be 10,000 sq. ft.
8.198.040 - Development Density. ¶
The maximum density of development shall be 4.4 dwelling units/net acre.
8.198.050 - Building Setbacks. ¶
The minimum setbacks shall be:
Front Rear Side Setback Setback Setback 20 feet 20 feet 10 feet
8.198.060 - Building Site Coverage Area Ratio. ¶
The maximum building site coverage area ratio shall be .30 (30 percent) and shall include all: (1) buildings, (2) accessory buildings, or (3) structures such as patios, decks, balconies, porches, bridges, and other similar uses which are eighteen (18) inches or more above the ground.
8.198.070 - Building Floor Area. ¶
The maximum building floor area shall be established according to the following table.
| Building Site Area | Maximum Floor Area |
|---|---|
| £10,000 sq. ft. | 2,600 sq. ft. |
| 10,001 - 20,000 ft. | .30 (building site area - 10,000) |
| + 2,600 sq. ft. | |
| >20,000 sq. ft. | 5,600 sq. ft. |
The maximum building floor area shall include the floor area of all stories of all buildings and accessory buildings on a building site. Maximum building floor area specifically includes: (1) the floor area of all stories excluding uninhabitable attics as measured from the outside face of all exterior perimeter walls, (2) the area of all decks, porches, balconies or other areas covered by a waterproof roof which extends four (4) or more feet from exterior walls, and (3) the area of all garages and carports that exceed 400 sq. ft.
8.198.080 - Parcel Merger To Establish Maximum Building Floor Area. ¶
Contiguous parcels may be combined to establish a building site area to be used to calculate the maximum building floor area provided those parcels are first merged pursuant to merger provisions of the County Subdivision Regulations.
8.198.090 - Parcel Division And Maximum Building Floor Area. ¶
A parcel may not be divided if such division would result in a building site area less than the minimum required to maintain conformity with the building floor area requirements of this district.
8.198.100 - Building Height. ¶
The maximum building height shall be 28 feet. Building height shall be measured as the vertical distance from: (1) any point on the natural grade to the topmost point of the building immediately above, or (2) any point on the lowest floor, if the lowest floor is below the natural grade, to the topmost point of the building immediately above.
Chimneys, pipes, mechanical equipment, antennae and other common facilities may extend beyond 28 feet to a maximum of 36 feet as required for safety or efficient operation.
8.198.110 - Building Height For Garages On Downhill Slopes. ¶
The maximum building height for an attached or detached garage on a downhill slope that is allowed by Section 8.348.030 to extend into the front setback to ensure safe access is 28 feet. Building height shall be measured as the vertical distance from any point on the natural grade to the topmost point of the building immediately above.
Maximum plate height for any portion of an attached or detached garage that extends into the front setback shall be 10 feet. Plate height shall be measured as the vertical distance from any point on the floor to the bottom of the lowest ceiling joist where the framing of the roof begins.
No second story shall be allowed above or below any portion of a garage on a downhill slope that is allowed to extend into the front setback.
8.198.120 - Daylight Plane. ¶
The daylight plane shall be established by measuring along all setback lines a vertical distance of 20 feet from the natural grade and then inward at an angle of 45 degrees until a maximum building height of 28 feet is reached.
Certain architectural features shall be allowed to extend into all setback areas according to the provisions of Section 6406.
Chimneys, pipes, mechanical equipment, antennae and other common facilities may extend into the daylight plane up to a maximum of 36 feet as required for safety or efficient operation.
Additionally, architectural features, such as dormers or gables, shall be allowed to extend into the daylight plane of the front and rear setbacks provided that: (1) they measure perpendicularly to the daylight plane no more than 15 feet in length and (2) they measure no more than a vertical distance of 24 feet from the natural grade.
(Prior code § 6300.5 Ord. 3319; 04/29/91)
(Prior code § 6300.5 Renumbered to Section 6300.7 Ord. 3535; 01/25/94)
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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.