Napa · Land use · Single-family home
Where is a single-family home allowed in Napa?
In Napa, a single-family home is allowed in 6 base zones (RS, RI, RT, RM, RO and 1 more, 1 with a condition), needs a conditional use permit in 1 (CL) and not allowed in 8 (Napa use tables, read October 2026).
Key points
- Allowed: RS, RI, RT, RM, RO and AR
- Needs a permit: CL
- Not allowed: CT, OC, OM, PQ, PQ-P, DP, POS and DPOS
Find your lot's zone on the city zoning map, then read its row. Every status below was read from the Napa 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
Napa's code calls this use “Single-family detached, 1 unit per lot”. 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 |
|---|---|---|
| RS | Allowed | § 17.08.020 |
| RI | Allowed | § 17.08.020 |
| RT | Allowed | § 17.08.020 |
| RM Multifamily | Allowed — see note Note **: City Council hereby finds to be compatible with attached development patterns in the district | § 17.08.020 |
| RO Residential Office District | Allowed | § 17.12.020 |
| AR Agricultural Resource | Allowed | § 17.16.020 |
| CL | Needs a conditional use permit | § 17.10.020 |
Zones where it is not allowed
What else applies
- More than 1 detached single-family unit per lot: RS C, RI C, RT P, RM P**; RO C, OC C. Downtown (DCC, DMU, DN, OBC), MU-T and MU-G districts have their own tables and are not given.
- 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: Downtown Specific Plan districts DCC, DMU, DN, OBC (Table B in S3): separate ground-level and upper-level columns; MU-T and MU-G mixed use districts (S7, S8) with sub-areas; Master plan districts (S9-S18); Cells marked X (allowed as part of mixed use only) are left out. Overlay zones and specific plans can also change the answer.
Other uses in Napa
Who this affects
Frequently asked questions
Can I have a single-family home in the CL zone in Napa?
Only with a conditional use permit. Napa's use table lists it that way in CL (§ 17.10.020).
Can I have a single-family home in the CT zone in Napa?
No. Napa's use table does not allow it in CT (§ 17.10.020).
Can I have a single-family home in the RS zone in Napa?
Yes. Napa's use table lists it as allowed in RS (§ 17.08.020).
General information, not legal advice.
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