California Building Permit Data
Analysis of 666,829 building permits across three major California metro areas, sourced from official city and county open data portals.
666,829
Total Permits Analyzed
$87.1B
Total Project Valuation
Los Angeles
Permits 211,172
Total Value $36.2B
Top Contractor THE HOME DEPOT
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San Francisco
Permits 338,545
Total Value $50.9B
Top Contractor LEE TOM ROOFING INC
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San Diego
Permits 117,112
Total Value $0
Top Contractor BAKER HOME ENERGY
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About This Data
Building permit data is sourced from official city and county open data portals:
- Los Angeles — LA City Open Data (data.lacity.org)
- San Francisco — SF Open Data (data.sfgov.org)
- San Diego — SD County Open Data (data.sandiegocounty.gov)
Permits are linked to contractor license numbers, allowing us to show which licensed contractors are most active in each area. All data is public record.