Baldwin Park, CA Accessory Structures: ADU Rules (2026)

Baldwin Park adopted its own ADU/JADU ordinance (Zoning Code Chapter 153, Subchapter 153.120, Part 11; sections 153.120.350 and 153.120.360) to implement state law (Gov Code 65852.2 and the 66310-66342 framework). ADUs are allowed by right, with no discretionary review, in the R-1, R-G and R-3 zones. Per the City's Planning Division ADU handout (rev. 8/28/23), single-family lots may have one ADU and one JADU; multi-family properties may add up to two detached ADUs plus conversions. Maximum size scales with lot area: parcels 5,000 sq ft or less allow 850 sq ft (one bedroom or less) or 1,000 sq ft (two-plus bedrooms); 5,001-8,000 sq ft up to 1,000 sq ft; over 8,001 sq ft up to 1,200 sq ft. New detached/attached ADUs are limited to one story, 18 feet in height, with 4-foot side and rear setbacks (front yard follows the underlying zone) and must be in the rear 50% of the lot. One off-street parking space is required per ADU unless the site qualifies for an exemption (within 1/2 mile of transit, in a historic district, part of the existing residence/accessory structure, in a permit-parking area, or within one block of car-share). No replacement parking is required when converting a garage. The owner must occupy the primary or junior unit (JADU), the ADU may be rented (30-day minimum) but not sold separately, and a deed restriction must be recorded.