Stockton ADU Regulations

• ✓AB 1332 pre-approved ADU plan option for faster permitting
• ✓JADU size capped at 500 sq ft
• ✓Pre-approved path NOT offered on FEMA Special Flood Hazard Area properties
• ✓HCD state ADU handbook linked as secondary reference

Public city materials describe attached/detached/conversion ADUs on single-family lots. JADUs ≤500 sq ft. Ministerial alignment with state ADU rules on qualifying lots.

State guarantee: California requires every city to allow at least an 800 sq ft ADU exempt from local lot coverage, FAR, and front-setback rules.

Height baseline: 16 ft for detached, rising to 18 ft within ½ mile of major transit. Attached ADUs follow the primary home, capped at 25 ft.

Off-street parking specifics come from Planning review and state ADU parking statutes.

AB 1332 pre-approved ADU plans advertised to speed review (still site-specific Planning + building approval). Contact Building & Life Safety at (209) 937-8561.

State backstop: A complete ADU permit must receive a decision in 60 business days. If the city stalls past 30 business days, AB 253 lets you hire a certified private plan checker to force a 10-business-day decision.

Standard permit fees apply. Pre-approved track intended to reduce time and cost.

SB 543: No impact fees on ADUs ≤750 sq ft. Above 750 sq ft, fees scale to the ratio of ADU size vs the main home.

Visit the official Stockton ADU page (link in hero) for current eligibility and downloads.

Standard ADUs in Stockton: no owner-occupancy required (made permanent in 2023).

JADUs: limited to 500 sq ft of interior livable space within an existing single-family home. Owner occupancy is required only when sanitation facilities are shared with the main house. JADUs cannot be used as short-term rentals (AB 1154 / SB 543).