Data Sources
All information is sourced from public records and updated regularly.
Primary Sources
LotCraft aggregates data from official San Francisco city departments and databases.
Core Property Data
Assessor Property Tax Rolls
Enterprise Addressing System
Parcel Geometry
Building Footprints
Enterprise Addressing System
Parcel Geometry
Building Footprints
Permits & Inspections
Building Permits
Electrical, Plumbing, Excavation, Street Use, Fire Permits
Building Inspections
Electrical, Plumbing, Excavation, Street Use, Fire Permits
Building Inspections
Planning & Zoning
Zoning Districts
Planning Projects
Land Use
Planning Projects
Land Use
Environmental Hazards
Liquefaction Zones
Steep Slopes (≥20%)
Tsunami & Flood Zones
Sea Level Rise
Steep Slopes (≥20%)
Tsunami & Flood Zones
Sea Level Rise
Historic & Cultural
Designated Landmarks
Historic Districts
Historic Districts
Neighborhood Context
Street Trees
Cultural Districts
Special Use Districts, Height Districts, Supervisor Districts
Cultural Districts
Special Use Districts, Height Districts, Supervisor Districts
Update Frequency
Most data sources are updated daily. Zoning information and regulations are updated as changes are adopted by the city. Assessment data is updated annually.
Data Accuracy
While we work to ensure accuracy, LotCraft cannot guarantee that all information is current or error-free. Users should verify critical information with the appropriate city department.