California SB 9 — Housing Opportunity and More Efficiency (HOME) Act (CA)

Tracked preemption from the California overlay bundle.

Overview

Effective
2022-01-01
Sunset
Authority
state
Scope
state:CA
Primary-source summary
SB 9 — California Housing Opportunity and More Efficiency (HOME) Act (2022)

Trigger predicate

When this evaluates true for a parcel, the law's preempted fields take precedence over base zoning.

AND
  • parcel.base_zone_category == res_sf
  • NOT
    • parcel.hazard_flags {historic_district, fire_hazard_very_high, flood_zone_AE, coastal_zone, conservation_easement}

Preempted fields

4 fields on the base district schema are rewritten when the trigger fires.

FieldOpValueNote
base_districts[category=res_sf].max_units_per_lotfloor_at4Up to 4 units via lot split + duplex on each resulting lot
base_districts[category=res_sf].min_setback_side_ftcap_at4
base_districts[category=res_sf].min_setback_rear_ftcap_at4
review_typewaive_discretionary

Citation

Research notes

Lot-split prong requires 3-yr owner-occupancy. Duplex-without-split prong does not.