California coverage · Region
Southern California
The largest market, and the best building-height data in California.
Designing in the Southern California
Southern California counties fly their own LiDAR and publish the results, so this is where a base map arrives with measured building heights rather than a nominal box — LA County’s LARIAC heights and Orange County’s lidar mean heights; San Diego’s county outlines carry none. It is also the region where water budgets bite hardest: MWELO compliance and turf-replacement rebates are a routine part of the scope rather than an afterthought.
6 counties, guide by guide
Each guide states exactly what resolves in that county, every layer cited to its source.
Setbacks, town by town
8 Southern California jurisdictions have their setback table transcribed from the adopted code. 7 have passed independent review, so their envelope is drawn on the plan; the rest ship cited on the export with an explicit “unverified” advisory and no lines.
Los Angeles County
Orange County
San Diego County
drawn on the plan · cited on the export, review pending
Fire, in the Southern California
Fire hazard here is a design constraint at the metropolitan scale. Orange County adds fuel-modification zones on top of the state maps, San Diego enforces a 50-ft Zone 1, and the 2024–25 CAL FIRE remap pulled new ground into designated zones across the region.
Water suppliers
Main water suppliers across the Southern California: Metropolitan Water District of Southern California · Los Angeles Department of Water and Power (LADWP) · Long Beach Utilities · Municipal Water District of Orange County · Irvine Ranch Water District · City of Santa Ana · San Diego County Water Authority · Otay Water District · Helix Water District · Western Municipal Water District · Eastern Municipal Water District · Riverside Public Utilities, and others.
Start with a Southern California address
Free to search. The county, the jurisdiction and the zone all resolve from the parcel.