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Title 8 — ZONING & DEVELOPMENT CODE›Article 1 — ZONING DISTRICTS, OVERLAY, AND COMBINING DISTRICTS

San Mateo County Zoning Code Ch. 8.28 R3, Multiple-Family Residential District

San Mateo County Zoning Code · 2026-06 edition · updated 2026-09-23 · San Mateo County

Cite as: San Mateo County Zoning Code Chapter 8.28 · Text as of 2026-09-23

8.28.010 - Regulations for “R-3” Districts.

The following regulations shall apply in all “R-3” Districts and shall be subject to all applicable provisions of Article 2 (Development Procedures) and Article 3 (General Development Standards) of Title 8.

Exceptions & meaning →

8.28.020 - Uses Permitted.

  • (a) (1) All uses permitted in “R-1” and “R-2” districts, except 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.

    • (2) Limited keeping of pets in association with multiple-family dwellings.
  • (b) Multiple-family dwellings and dwelling groups.

  • (c) Fraternity, sorority houses, and dormitories.

  • (d) The following uses subject to the securing of a use permit in each case as provided in Chapter 8.280 of Title 8:

    1. Hospitals, rest homes, sanitariums, clinics.

    2. Philanthropic and charitable institutions.

    3. Automobile courts.

    4. Hotels.

  • (f) In the Coastal Zone, Short-Term Rentals, subject to a short-term rental permit issued in accordance with County Zoning Regulations, Chapter 22, Section 6401.3.

(Prior Code § 6181; Ord 1813 – 02/07/67)

(Prior Code § 6181(a); Ord 3425 – 11/10/92)

(Prior Code § 6181(e); Ord 3791 – 10/21/97)

(Prior Code § 6182; Ord 1483 – 10/10/61)

(Prior Code § 6182; Ord 1706 – 06/22/65)

(Prior Code § 6183, 6184; Ord 1483 – 10/10/61)

(Prior Code § 6181(f); Ord 4777 , 06/06/2017)

Exceptions & meaning →

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