Title 27 — ZONING›Chapter 27.60 — SPECIAL DISTRICTS
Article II — Open Space Districts
San Mateo Zoning Code · 2026-06 edition · updated 2026-07-25 · San Mateo
27.60.060 LANDS EMBRACED. ¶
All land not contained within any other district established in this chapter shall be classified as open space embraced within such district as hereinafter provided.
27.60.070 PURPOSE. ¶
The Open Space (OS) is established to provide areas for public and quasi-public open space and
recreation purposes, noncommercial private open space and recreation uses, and to ensure continuing maintenance of open space for public safety, health and welfare.
27.60.080 PERMITTED USES. ¶
Permitted uses shall be as follows:
(a) Parks, playgrounds, community centers and facilities, publicly owned;
- (b) Vacant land for open space preservation
27.60.090 SPECIAL USES. ¶
The following uses may also be allowed if a special use permit is approved:
(a) Detached accessory structures, containing more than two plumbing fixtures or waste lines;
(b) Swimming pools, hot tubs and spas located in required front yard or street side yard;
(c) Cemeteries and mausoleums;
(d) Churches, convents, parish houses, and monasteries;
(e) Community services, including, but not limited to, libraries, parks, playgrounds, and community centers;
- (f) Public and private educational facilities;
(g) Day care centers serving more than six persons or family day care centers serving more than 14 children;
(h) Philanthropic and eleemosynary uses;
(i) Public utility facilities; and
(j) Temporary real estate sales offices for a period not to exceed the duration of the
construction and sale of homes within the subdivision wherein the sales office is to be located.
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▸ Title 27 — ZONING
Overview- Chapter 27.02 — GENERAL PROVISIONS
- Chapter 27.04 — DEFINITIONS
- Chapter 27.06 — ADMINISTRATION
- Chapter 27.08 — RULES OF PROCEDURE
- Chapter 27.10 — REVIEW PROCEDURE
- Chapter 27.12 — FEES
- Chapter 27.13 — TRANSPORTATION IMPROVEMENT FEE
- Chapter 27.14 — REDEVELOPMENT
- Chapter 27.15 — DENSITY BONUS
- Chapter 27.16 — RESIDENCE DISTRICTS
- Chapter 27.18 — R1 DISTRICTS
- Chapter 27.19 — ACCESSORY DWELLING UNITS AND JUNIOR ACCESSORY …
- Chapter 27.21 — TWO-UNIT
- Chapter 27.24 — R4 DISTRICT—MULTIPLE FAMILY DWELLINGS (HIGH DE…
- Chapter 27.26 — R5 DISTRICT—MULTIPLE FAMILY DWELLINGS (HIGH DE…
- Chapter 27.27 — RESIDENTIAL
- Chapter 27.28 — DOWNTOWN
- Chapter 27.29 — RESIDENTIAL OVERLAY DISTRICT—MIXED USE
- Chapter 27.30 — C1 DISTRICTS— NEIGHBORHOOD COMMERCIAL
- Chapter 27.32 — C2 DISTRICTS—
- Chapter 27.34 — C3 DISTRICTS—
- Chapter 27.36 — C4 DISTRICTS
- Chapter 27.38 — CBD DISTRICTS— CENTRAL BUSINESS DISTRICT
- Chapter 27.39 — CBD SUPPORT DISTRICT— CENTRAL BUSINESS DISTRIC…
- Chapter 27.40 — BUILDING HEIGHT AND BULK
- Chapter 27.44 — E1 DISTRICTS—EXECUTIVE PARK
- Chapter 27.48 — E2 DISTRICTS —EXECUTIVE OFFICES
- Chapter 27.54 — MANUFACTURING DISTRICTS
- Chapter 27.56 — M1 DISTRICTS
- Chapter 27.59 — S DISTRICTS
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▸ Chapter 27.60 — SPECIAL DISTRICTS
- Chapter 27.61 — SC DISTRICTS—SENIOR CITIZEN OVERLAY DISTRICT—S…
- Chapter 27.62 — PLANNED DEVELOPMENTS —SPECIAL USE PERMITS
- Chapter 27.63 — ADULT ENTERTAINMENT BUSINESSES
- Chapter 27.64 — OFF-STREET PARKING AND LOADING
- Chapter 27.65 — AMUSEMENT ARCADES AND MACHINES
- Chapter 27.66 — HISTORIC PRESERVATION
- Chapter 27.67 — OPEN AIR VENDORS
- Chapter 27.68 — MAINTENANCE OF PROJECT SITE
- Chapter 27.69 — RECYCLING FACILITIES
- Chapter 27.70 — ACCESSORY BUILDINGS AND STRUCTURES IN REQUIRED…
- Chapter 27.72 — NONCONFORMING BUILDINGS AND USES
- Chapter 27.73 — TC DISTRICT—
- Chapter 27.74 — SPECIAL USE PERMITS
- Chapter 27.75 — MIXED USE CONVENIENCE MARKET/AUTOMOBILE SERVIC…
- Chapter 27.76 — PERFORMANCE STANDARDS
- Chapter 27.77 — DESIGN REVIEW STANDARDS FOR SERVICE STATIONS
- Chapter 27.78 — VARIANCES
- Chapter 27.79 — REASONABLE
- Chapter 27.80 — AMENDMENTS
- Chapter 27.82 — MAPS—BOUNDARY LINES
- Chapter 27.83 — SLOPE AND HILLSIDE DEVELOPMENT STANDARDS
- Chapter 27.84 — FENCES, TREES AND HEDGES
- Chapter 27.85 — DAY CARE CENTERS
- Chapter 27.86 — RECYCLING COLLECTION AREAS
- Chapter 27.87 — OUTDOOR RESTAURANT SEATING AND MERCHANDISE DIS…
- Chapter 27.88 — BAY MEADOWS SPECIFIC PLAN
- Chapter 27.90 — TOD DISTRICT— TRANSIT ORIENTED DEVELOPMENT
- Chapter 27.92 — HILLSDALE STATION AREA PLAN
- Chapter 27.94 — HOUSING