New Home Construction in Walnut Creek, CA
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Building a New Home in Walnut Creek
New homes in Walnut Creek are usually rebuilds in established neighborhoods like Northgate, Walnut Heights or Rancho Paraiso, or hillside homes near the open space ridges. Axiom Renovation (CA Lic. #1105006) builds custom homes and coordinates design review, engineering and City permits.
Construction in Progress
Ask us about recent new-home and rebuild projects during your consultation.
The Walnut Creek Approval Path
- Design review before the building permit, on a ministerial, objective or discretionary path set by staff.
- Hillside Performance Standards on lots averaging 15% slope or more.
- Tree permit filed with the first development application.
- Building permit through the online portal, with electronic plan check under the 2025 California codes.
- City inspections through final.
Walnut Creek issues its own permits. Unlike Lafayette, Orinda or Moraga, Walnut Creek has its own Building Division that reviews plans, issues building permits and inspects the work. Plan check is electronic. The City’s published maximum for a first review of new residential work is 23 business days, with 18 for rechecks, and its goal is to approve most residential alterations and ADUs within two review rounds.
City Hall, 1666 North Main Street, 2nd Floor, Walnut Creek, CA 94596
Building permit technicians (925) 943-5834 · Duty planner (925) 256-3558 · Inspections (925) 943-5833
In person Monday to Thursday by appointment, with walk-ins taken as available; Fridays are remote service. All permit applications are filed through the City’s online Accela portal; paper and emailed applications are not accepted.
New Construction Requirements
- Fire sprinklers, required in all new one- and two-family homes.
- The 2025 California Energy Code, adopted locally in December 2025. We found no local all-electric ordinance; the City lists all-electric new homes as a sustainability goal.
- Wildfire construction standards where your parcel is mapped in a fire hazard zone under the 2025 maps adopted by Contra Costa County Fire Protection District.
- Water from EBMUD or Contra Costa Water District, depending on location, and Central San sewer.
Inspections are scheduled through Accela or by phone before midnight for next-day service. Construction on Saturdays and City holidays needs an after-hours permit.
Explore More
Other Walnut Creek services: ADUs · Bathrooms · Kitchens · Additions · Walnut Creek overview
Same service nearby: Lafayette · Alamo · Danville · Orinda
See our custom home builder page.
Walnut Creek New Home Construction FAQ
Does a new home in Walnut Creek need design review?
Yes. Design review is required before a building permit for new construction.
Does Walnut Creek require all-electric new homes?
We found no local all-electric ordinance. New homes must meet the 2025 California Energy Code.
Who is my water provider?
Either EBMUD or Contra Costa Water District, depending on location.
Who issues the building permit?
The City of Walnut Creek, online through Accela.