Where is a duplex allowed in Suisun City?

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

Suisun City's code calls this use “Dwelling, two-family (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.

CR, CSF, CMU, O, P, OS, PQP.

• 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: DMU (Downtown Mixed-Use) and MSMU (Main Street Mixed-Use): waterfront specific plan zones, use tables not in the text (S8-S10 only point to the specific plan); Zone names for RL, RM, RH1, RH2, RMU, CR, O, APS, OS, PQP are not stated in the packet. Overlay zones and specific plans can also change the answer.

• Apartment building
• Live-work unit
• Rooming or boarding house
• Bed and breakfast
• Child care center
• Church or place of worship
• Private school
• Emergency shelter