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New construction · Walnut Creek

How does the wildfire (WUI) zone affect new construction in Walnut Creek?

Walnut Creek parcels in a Fire Hazard Severity Zone must meet California Building Code Chapter 7A — ignition-resistant exteriors, ember-resistant vents, Class A roofing, and defensible space. Hillside parcels above Northgate Road and into the open-space interface are in CAL FIRE VHFHSZ — Chapter 7A applies on mapped lots.

What changes the answer in Walnut Creek.

Hillside parcels above Northgate Road and into the open-space interface are in CAL FIRE VHFHSZ — Chapter 7A applies on mapped lots. Site access in Walnut Creek can require temporary street-use or encroachment permits depending on street width, on-street parking restrictions, and proximity to schools or transit corridors.

  • Hillside parcels above Northgate Road and into the open-space interface are in CAL FIRE VHFHSZ — Chapter 7A applies on mapped lots.
  • Chapter 7A material requirements
  • Defensible-space inspection prior to final
  • Site access in Walnut Creek can require temporary street-use or encroachment permits depending on street width, on-street parking restrictions, and proximity to schools or transit corridors.

Source-backed note

Cal Fire and City of Walnut Creek Community Development Department — Building Division jointly verify Chapter 7A compliance; the parcel's official FHSZ designation is the controlling input.

Reference: Cal Fire — Fire Hazard Severity Zones — Cal Fire / OSFM

Local authority: City of Walnut Creek Community Development Department — Building Division

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Send us the address and we'll respond with a feasibility note that cites City of Walnut Creek Community Development Department — Building Division and the parcel's actual constraints — not a generic checklist.

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