CA SB1120

Requires ministerial approval (without discretionary review) for housing developments containing 2 residential units in single-family residential zones if they meet specified requirements, including being located in urbanized areas and not demolishing more than 25% of existing exterior structural walls.

Prohibits demolition or alteration of affordable housing, rent-controlled housing, housing occupied by tenants in the last 3 years, or properties where owners exercised rights to withdraw rental units within the last 15 years.

Establishes ministerial approval for "urban lot splits" that subdivide existing parcels into two equal parcels of at least 1,200 square feet each, subject to similar protections for affordable and occupied housing.

Limits setback requirements to 4 feet from side and rear lot lines for new structures (except existing structures), and allows up to 1 parking space per unit unless located near transit or car-sharing.

Extends the additional period for tentative map validity from 12 months to 24 months and exempts approved projects from California Environmental Quality Act (CEQA) requirements.