Housing (Building Codes)

AB 671 mandates the Department of Administration to study redundant federal, state, and local requirements for constructing new housing (including single-family, duplex, and multifamily units). The study must identify overlapping or unnecessary rules and submit a report with legislative recommendations within one year of the bill's effective date. This bill does not create new laws but directs a formal review to potentially streamline housing construction regulations. It directly affects future legislative decisions on housing policy, not current construction practices.

SB 473 requires local governments to allow at least one accessory dwelling unit (ADU) per single-family lot as a "permitted use" without special permits, directly affecting homeowners in residential and mixed-use zones. Localities may still set reasonable limits on ADU size (capped at the main house's square footage), height, and setbacks, but cannot impose additional approvals for standard ADUs. The bill also prohibits new ADUs created after its effective date from being used as short-term rentals (like Airbnb), while allowing existing ADUs to remain unaffected. This standardizes ADU access across the state while giving communities flexibility to manage development.

AB 365 requires cities, towns, and homeowners' associations to allow accessory dwelling units (ADUs) - small secondary homes on existing properties - as a "permitted use" without special permits on eligible parcels. It prohibits local governments and HOAs from charging extra fees (beyond standard building permits), imposing stricter design rules than for main homes, requiring separate utilities or parking, or banning ADUs via deed restrictions. The bill permits size limits (capping ADUs at 75% of the main home's square footage on single-family parcels) but bans all other restrictive rules. It directly affects local zoning authorities, municipal ordinances, and HOA covenants governing residential properties.