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San Anselmo · Land use · Single-family home

Where is a single-family home allowed in San Anselmo?

In San Anselmo, a single-family home is allowed in 5 base zones (R-1-H, R-1-C, R-1, R-2 and R-3), needs a conditional use permit in 4 (P, C-1, C-L and C-3) and not allowed in 1 (San Anselmo use tables, read October 2026).

Key points

  • Allowed: R-1-H, R-1-C, R-1, R-2 and R-3
  • Needs a permit: P, C-1, C-L and C-3
  • Not allowed: C-2

Find your lot's zone on the city zoning map, then read its row. Every status below was read from the San Anselmo Municipal Code use tables (read October 2026). Base zones only. General information, not legal advice — check with the city before you apply.

Zones where a single-family home can go

San Anselmo's code calls this use “Residential, Single Family Detached”. Each row links to the use table it comes from. A zone marked “see note” has a condition in the code, for example upper floors only or a larger lot.

Zones where it is not allowed

What else applies

  • 'Residential, Single Family Attached' is P(6) in R-1-H, R-1-C, R-1 only.
  • State law: State law lets most single-family lots add an ADU and a JADU (California ADU law) and a second home or a lot split under SB 9 (Gov. Code § 65852.21).
  • Not covered here: R-HO (overlay, not in table); PF (Public Facilities); OS (Open Space). Overlay zones and specific plans can also change the answer.

Other uses in San Anselmo

Who this affects

HomeownersBuyersReal estate agentsSmall developers

Frequently asked questions

Can I have a single-family home in the P zone in San Anselmo?

Only with a conditional use permit. San Anselmo's use table lists it that way in P (Article 3 — Land Use Regulations).

Can I have a single-family home in the C-2 zone in San Anselmo?

No. San Anselmo's use table does not allow it in C-2 (Article 3 — Land Use Regulations).

Can I have a single-family home in the R-1-H zone in San Anselmo?

Yes. San Anselmo's use table lists it as allowed in R-1-H (Article 3 — Land Use Regulations).

General information, not legal advice.

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