California ADU / JADU By-Right (CA)
Tracked preemption from the California overlay bundle.
Overview
← All state preemptionsCalifornia overlay roll-upCalifornia zoning wikiCalifornia building codesFederal overlaysGlossaryFederal-conflict: Not flagged
Effective
2020-01-01
Sunset
—
Authority
state
Scope
state:CA
Other California preemptions
California SB 423 — Streamlined Multifamily ApprovalCalifornia AB 2011 — Affordable Housing and High Road Jobs ActCalifornia AB 2097 — Parking Mandate Elimination Near TransitCalifornia SB 9 — Housing Opportunity and More Efficiency (HOME) ActCalifornia SB 10 — Local Upzoning AuthorizationCalifornia Builder's RemedyCalifornia Density Bonus Law
Trigger predicate
When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.
parcel.base_zone_category ∈ {res_sf, res_mf, res_th, mu}Preempted fields
4 fields on the base district schema are rewritten when the trigger fires.
| Field | Op | Value | Note |
|---|---|---|---|
base_districts[category=res_sf].allowed_uses | add | adu | |
base_districts[category=res_sf].allowed_uses | add | jadu | |
review_type | waive_discretionary | — | |
parking_ratio_adu | waive | — |
Citation
Authority source
CA Government Code §66411.7–66411.8
Research notes
ADUs by-right on any residential or mixed-use parcel statewide. Size limits: 1,200 sf detached, 50% of primary or 1,000 sf (whichever less) attached, 500 sf JADU. No parking required near transit / in historic districts / within existing structure. Cities cannot require minimum lot size or connection fees >$0 for units <750 sf.