Vallejo · Land use · Duplex
Where is a duplex allowed in Vallejo?
In Vallejo, a duplex is allowed in 5 base zones (RLD, RMD, RHD, NC and CC, all with a condition) and not allowed in 11 (Vallejo use tables, read October 2026).
Key points
- Allowed: RLD, RMD, RHD, NC and CC
- Not allowed: RR, NMX, DMX, WC, O, M, IL, IG and 3 more
Find your lot's zone on the city zoning map, then read its row. Every status below was read from the Vallejo 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 duplex can go
Vallejo's code calls this use “Duplex”. 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 |
|---|---|---|
| RLD Residential Low Density | Allowed — see note Note 1: 2-10 units permitted subject to Director decision. 11-49 units permitted subject to Director decision with Design Review Board recommendation. 50 or more units requires Design Review Board recommendation and Planning Commission decision. If project complies with State Gov. Code Sec. 65589.4, project is exempt from Design Review Board and Planning Commission review. | § 16.301.01 |
| RMD | Allowed — see note Note 1: 2-10 units permitted subject to Director decision. 11-49 units permitted subject to Director decision with Design Review Board recommendation. 50 or more units requires Design Review Board recommendation and Planning Commission decision. If project complies with State Gov. Code Sec. 65589.4, project is exempt from Design Review Board and Planning Commission review. | § 16.301.01 |
| RHD | Allowed — see note Note 1: 2-10 units permitted subject to Director decision. 11-49 units permitted subject to Director decision with Design Review Board recommendation. 50 or more units requires Design Review Board recommendation and Planning Commission decision. If project complies with State Gov. Code Sec. 65589.4, project is exempt from Design Review Board and Planning Commission review. | § 16.301.01 |
| NC Neighborhood Commercial | Allowed — see note Note 1: 2-10 units permitted subject to Director decision. 11-49 units permitted subject to Director decision with Design Review Board recommendation. 50 or more units requires Design Review Board recommendation and Planning Commission decision. If project complies with State Gov. Code Sec. 65589.4, project is exempt from Design Review Board and Planning Commission review. | § 16.301.01 |
| CC Central Corridor Commercial | Allowed — see note Note 1: 2-10 units permitted subject to Director decision. 11-49 units permitted subject to Director decision with Design Review Board recommendation. 50 or more units requires Design Review Board recommendation and Planning Commission decision. If project complies with State Gov. Code Sec. 65589.4, project is exempt from Design Review Board and Planning Commission review. | § 16.301.01 |
Zones where it is not allowed
What else applies
- State law: SB 9 (Gov. Code § 65852.21) allows two homes on most single-family lots with a ministerial permit, also where this table says no.
- Not covered here: WMX (Waterfront Mixed Use): S3 note A says Table 3 of the Waterfront and Vallejo Station Planned Development Master Plan supersedes the table, so no WMX cell is given; Note 27 (used in the Duplex RC and Multi-Unit RC cells) is not in the packet; those cells are left out; Chapters 16.306 (Animal Keeping), 16.313 (Community Assembly), 16.315 (Day Care), 16.334 (Residential Care), 16.336 (SRO) and the definitions are not in the packet. Overlay zones and specific plans can also change the answer.
Other uses in Vallejo
Who this affects
Frequently asked questions
Can I have a duplex in the RR zone in Vallejo?
No. Vallejo's use table does not allow it in RR (Rural Residential) (§ 16.301.01).
Can I have a duplex in the RLD zone in Vallejo?
Yes, with a condition. Vallejo's use table lists it as allowed in RLD (Residential Low Density) (§ 16.301.01). The code adds a condition: “2-10 units permitted subject to Director decision. 11-49 units permitted subject to Director decision with Design Review Board recommendation. 50 or more units requires Design Review Board recommendation and Planning…”
General information, not legal advice.
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