CA SB621

Authorizes streamlined, ministerial approval for converting hotels and motels into multifamily housing if the structure has been vacant for at least 6 months, with an exception if 100% of units serve lower-income households (up to 20% moderate-income).

Requires developers to reserve at least 10% of units as affordable housing for lower-income households for 55 years (rental) or 45 years (ownership), unless local affordability requirements are more stringent.

Mandates prevailing wage payment for all construction workers and use of a skilled and trained workforce, with monthly compliance reporting and civil penalties up to $10,000 per month for non-compliance.

Prohibits local governments from imposing parking standards in areas within half-mile of transit stops, historic districts, or with permit parking/car-sharing; limits parking to one space per unit elsewhere.

Prohibits minimum/maximum unit size requirements and density restrictions (except limiting total units to the original hotel/motel count); requires local government to approve or deny applications within 30 days.