ADU rules in Lynwood, CA — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Lynwood permits accessory dwelling units (ADUs) and junior ADUs (JADUs) through a ministerial process, following California's statewide framework under Government Code sections 65852.2 and 65852.22 as implemented by the Community Development Department.
Lynwood's ADU regulations implement SB 13, AB 68, and AB 881 (effective January 1, 2020). Detached ADUs on a single-family lot may reach 1,200 square feet; attached ADUs are capped at 850 square feet (studio/1-bedroom) or 1,000 square feet (2+ bedrooms); JADUs are limited to 500 square feet inside the existing home. Detached ADUs have a 16-foot height limit with 4-foot side and rear setbacks and a 10-foot street-side (corner) setback. No parking is required. Owner-occupancy is not required for ADUs permitted between January 1, 2020 and January 1, 2025. A recorded covenant restricting sale and short-term rental is required. Older code section 25-20-8 addressed second units in R-1 zones.
Building an ADU without the required permit is a code violation. The Community Development Department reviews applications ministerially; unpermitted units can trigger enforcement and orders to permit or remove.
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Side-by-side rule comparisons with other cities in Los Angeles County.
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