Los Angeles Residential Permit Guide
Los Angeles residential projects often begin with zoning research, plans, plan check, permit issuance, and inspections through LADBS.
Residential Permits
Los Angeles, California
April 26, 2026
Permit takeaway
LADBS says building permits are required for new construction, additions, alterations, demolition, structural alterations, and some use-of-land projects.
Zoning and placement
Los Angeles homeowners should check ZIMAS and confirm city jurisdiction before preparing plans.
Building and trade review
Separate approvals may be needed from other departments depending on project scope.
Call before applying when
Call before applying if the project changes layout, structure, parking, use, exterior envelope, or sits in a hillside, coastal, fire, or historic area.
Documents to prepare
- ZIMAS property information
- Permit application
- Plans or express permit documents
- Contractor or owner-builder information
Inspection planning
- Schedule required LADBS inspections
- Keep approved plans onsite
- Do not cover work before inspection
Official sources
- LADBS Plan Check and Permit
- LADBS About the Construction Process
- LADBS Types of Plan Checks and Permits
This guide is a planning summary. Always verify the current requirements with the local office before starting work.