CA AB2387

Allows owners of existing mobilehome parks to add up to 10% more lots (either single-family manufactured homes or multifamily homes on previously occupied lots) without obtaining conditional use permits, zoning variances, or other zoning approvals.

Exempts additional lots from business taxes, local registration fees, and use permit fees, though existing fees applicable to current park lots still apply (property taxes, water/sewer fees, garbage collection, inspections, and bond assessments).

Requires park owners to obtain all necessary permits from the enforcement agency and provide evidence of compliance with health, utility, and fire requirements before adding lots.

Prohibits park owners from reducing the size of or interfering with existing amenities (pools, dog parks, clubhouses, playgrounds, storage facilities, etc.) without complying with lot line alteration requirements.

Multifamily manufactured homes placed on previously single-family lots are not considered new construction for rent control exemption purposes, and adding these lots cannot be grounds for closing the park or terminating existing residents' tenancies.