Chula Vista, CA Accessory Structures: ADU Permits (2026)

The City of Chula Vista regulates ADUs and JADUs through the Development Services Department under CVMC Title 19 (Zoning), most recently overhauled by Ordinance 3592 (2025) which repealed former CVMC 19.58.022 and 19.58.023 and integrated updated state-conformity ADU standards. Applications are reviewed ministerially under California Government Code §65852.2 — no public hearing, no discretionary findings, only objective standards. State law caps the decision on a complete application at 60 days under Gov. Code §65852.2(b). Detached ADUs are allowed up to 1,200 sq ft; attached ADUs are capped at 50% of the primary dwelling or 1,200 sq ft, with the state by-right minimum of 800 sq ft and a 16-foot height regardless of underlying zone. Front-setback rules follow the underlying zone; side and rear setbacks for one-story ADUs are 4 feet under state law. JADUs up to 500 sq ft are permitted within an existing or proposed single-family dwelling. All ADUs must comply with the California Residential Code, Title 24 energy standards, and CalGreen (adopted under CVMC Title 15). Chula Vista's ADU Information page at the Development Services Department provides pre-approved ADU plans and a streamlined intake.