Dublin · Land use · Duplex
Where is a duplex allowed in Dublin?
In Dublin, a duplex is allowed in 2 base zones (R-2 and R-M) and not allowed in 9 (Dublin use tables, read October 2026).
Key points
- Allowed: R-2 and R-M
- Not allowed: A, R-1, C-O, C-N, C-1, C-2, M-P, M-1 and 1 more
Find your lot's zone on the city zoning map, then read its row. Every status below was read from the Dublin 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
Dublin'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.
Zones where it is not allowed
What else applies
- "SB 9 Unit Developments" row (Zoning Clearance in R-1) restates state law and is not used as the main row.
- 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: Planned Development (PD): uses by Development Plan; Downtown Dublin district: Downtown Dublin Specific Plan Section 3.4; Dublin Crossing district: Dublin Crossing Specific Plan Section 2.7. Overlay zones and specific plans can also change the answer.
Other uses in Dublin
Who this affects
Frequently asked questions
Can I have a duplex in the A zone in Dublin?
No. Dublin's use table does not allow it in A (Agricultural) (Chapter 8.12 — ZONING DISTRICTS AND PERMITTED USES OF LAND).
Can I have a duplex in the R-2 zone in Dublin?
Yes. Dublin's use table lists it as allowed in R-2 (Two Family Residential) (Chapter 8.12 — ZONING DISTRICTS AND PERMITTED USES OF LAND).
General information, not legal advice.
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