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Address check

What rules apply to your lot?

Type a Southern California street address. We look it up in official public maps and show the CAL FIRE fire hazard severity zone, whether it sits inside the January 2025 Eaton or Palisades fire perimeter, who issues building permits and the energy code climate zone, with a plain-English note on what each means.

How it works

Three steps, all official public data

  1. 01

    Find the point

    The U.S. Census Bureau geocoder turns your address into a map point (latitude and longitude). The matched address is shown back to you, so you can see it found the right place.

  2. 02

    Check official maps

    That point is checked live against CAL FIRE's hazard zone and 2025 fire perimeter maps, LA County and Census boundaries, and the Energy Commission's climate zones.

  3. 03

    Explain it plainly

    Each result comes with what it usually means for a rebuild or new home, who issues the permit, and the official viewer to confirm it yourself.

The datasets

  • Fire Hazard Severity Zones, Local Responsibility AreasCAL FIRE / OSFM map dated March 24, 2025 (all rollout phases)
  • Fire Hazard Severity Zones, State Responsibility AreasCAL FIRE / OSFM map dated Sept. 29, 2023, effective April 1, 2024
  • Responsibility area (SRA / LRA / FRA)CAL FIRE SRA25_1, status as of Nov. 15, 2024
  • 2025 fire perimetersCAL FIRE California Fire Perimeters, 2025 layer
  • City and community boundariesLA County Community Boundaries (CSA); U.S. Census places outside LA County
  • City of Los Angeles Very High zonesCity of LA VHFHSZ map, the layer shown in ZIMAS (checked for City of LA addresses)
  • Building energy climate zoneCalifornia Energy Commission Building Climate Zones (map boundaries)
  • Address matchingU.S. Census Bureau Geocoder (Public_AR_Current)

What this tool is, and isn't. It reads the same public maps a permit technician would start from, at the point where the address geocodes. It is not a parcel survey or a permit decision: maps are adopted locally and change, a lot near a boundary can fall on either side, and the designation on your permit is the one that counts. Confirm with your building department.

CAL FIRE hazard zone viewer ↗ZIMAS, City of Los Angeles ↗Altadena rebuild guide →Palisades rebuild guide →

Next step

Know your lot? Send your plans.

We review your drawings for this address and explain what a light-gauge steel frame involves.

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