Where is a single-family home allowed in Sonoma County?

Find your lot's zone on the city zoning map, then read its row. Every status below was read from the Sonoma County 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

Sonoma County's code calls this use “Dwelling, Single-Family”. 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.

Zone	Status	Code
LIA Land Intensive Agriculture (name from the matching Chapter 26C coastal district heading)	Allowed	§ 26-06-030
LEA Land Extensive Agriculture (name from the matching Chapter 26C coastal district heading)	Allowed	§ 26-06-030
DA Diverse Agriculture (name from the matching Chapter 26C coastal district heading)	Allowed	§ 26-06-030
RRD Resources and Rural Development (name from the matching Chapter 26C coastal district heading)	Allowed	§ 26-06-030
TP Timberland Production (name from the matching Chapter 26C coastal district heading)	Allowed	§ 26-06-030
AR Agriculture and Residential (name from the matching Chapter 26C coastal district heading)	Allowed	§ 26-08-030
RR Rural Residential (name from the matching Chapter 26C coastal district heading)	Allowed	§ 26-08-030
R1 Low Density Residential (name from the matching Chapter 26C coastal district heading)	Allowed	§ 26-08-030
R2 Medium Density Residential (name from the matching Chapter 26C coastal district heading)	Allowed	§ 26-08-030
R3 R3 Zone	Allowed	§ 26-08-030
CR	Allowed	§ 26-10-030
AS Agricultural Services (name from the matching Chapter 26C coastal district heading)	Allowed	§ 26-10-030
PCRR Planned Community, general plan rural residential (S6 A.2.a)	Allowed	§ 26-14-030
PCUR Planned Community, general plan urban residential (S6 A.2.b)	Allowed	§ 26-14-030
PCCOM Planned Community, general plan limited/general commercial (S6 A.2.c)	Allowed	§ 26-14-030
CO	Needs a conditional use permit	§ 26-10-030
C1	Needs a conditional use permit	§ 26-10-030
C2 Community Commercial (name from the matching Chapter 26C coastal district heading)	Needs a conditional use permit	§ 26-10-030
C3	Needs a conditional use permit	§ 26-10-030
LC	Needs a conditional use permit	§ 26-10-030
K	Needs a conditional use permit	§ 26-10-030

Zones where it is not allowed

PF.

What else applies

Standards for this use: Use regulations 26-24-080 (text not in packet).
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: Chapter 26C coastal districts (LIA CC, LEA CC, DA CC, RRD CC, TP, AR CC, RR, R1, R2, PC, CS, CT, C2, AS, CF, PF): use lists are prose, not tables, and are not mapped here; Definitions and use-regulation sections 26-18 through 26-30 and 26-88 are not in the packet; Combining districts (S, AH, RE, LG, RC, OAK, VOH, G, MR, WH, Z, VR, TS) skipped. Overlay zones and specific plans can also change the answer.

Other uses in Sonoma County

Who this affects

HomeownersBuyersReal estate agentsSmall developers

Frequently asked questions

Can I have a single-family home in the CO zone in Sonoma County?

Only with a conditional use permit. Sonoma County's use table lists it that way in CO (§ 26-10-030).

Can I have a single-family home in the PF zone in Sonoma County?

No. Sonoma County's use table does not allow it in PF (Public Facilities (name from the matching Chapter 26C coastal district heading)) (§ 26-14-030).

Can I have a single-family home in the LIA zone in Sonoma County?

Yes. Sonoma County's use table lists it as allowed in LIA (Land Intensive Agriculture (name from the matching Chapter 26C coastal district heading)) (§ 26-06-030).

General information, not legal advice.