Building Division

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California Building Code Updates:  

  • All Building permit applications are now being plan reviewed and permitted under the new 2022 California Building Standards Code. Visit Codes ( for new 2022 California Building Standards Codes.
  • New Building Code Requirements went into effect on June 17, 2021 to improve fire protection for all new residential construction and rebuilds. Please refer to Ordinance No. 1468 and Resolution 2021-50 for details. 

Building Permit Application Submittals:  

Express permits are being handled digitally through the Online Permit Center. Please see the Express Submittal Page for submittal instructions.

All Building Permits - Either Residential or Commercial are now being accepted through the Online Permit Center.  We no longer accept these applications thru email.  Incomplete submittals will not be accepted. The permit counter is still available for physical standard or quick reviews. 

Permit Counter submittals, re-submittals and alteration hours:
Monday - Friday 9-11:30am and 1-3:30pm

Need help navigating the Online Permit Center? 

Check out our FAQ section with some great how-to documents that will step you thru the processes.

Notice regarding current processing timelinesDue to recent staff shortages and increased applications, the Building Division is experiencing delays in permit processing.  We have brought in additional outside consultant services and staff to help minimize delays. Also, please be aware that due to workload demand at this time, emails and phone calls are taking 1-2 business days for a response.  We thank you in advance for your patience and ask that our clients allow us time to reply to your email or phone call as calling or emailing multiple times adds to the backlog and prevents you and other clients from receiving our services in a timely manner. 

Get up to $3,000 Toward an Earthquake Retrofit. Earthquake Brace + Bolt (EBB) helps homeowners lessen the potential for damage during an earthquake. EBB offers a grant of up to $3,000 toward a seismic retrofit for qualifying older houses. Homeowner Registration Opens October 18, 2022. Learn more at:

Automated Inspection Scheduling System! Building Inspections can be scheduled via phone, text, or online. To schedule an inspection online using our Online Permit Center ("OPC"), visit the OPC website. For phone or text, please refer to the Inspections and Select Text Scheduling Guide (Flier) and our handy Automated Inspection Scheduling System Tri-Fold Guide to keep handy in your car. Before you call in to the new automated scheduling system, please review the Guide, then call or text to schedule your inspection(s), and make sure you receive a confirmation for each type of inspection you are scheduling.

Notice - Deferred Submittals: Napa County Building Department no longer accepts Deferred Submittals without prior approval by the Chief Building Official on all projects. This includes Truss (Floor and Roof) Calculation Packages. Please adjust your initial building plan submittals to include all of the required documents to submit a complete application package. Incomplete application submittal packages will not be accepted.

Fire Related Information: If your property was affected by wildfire, visit the Rebuilding After the Fire website for information.

Questions about Building & Development? If you have questions about permitting, building codes, construction violations, or general building safety, please use the informational links provided, visit our Frequently Asked Questions (FAQs) page, or give us a call before visiting our public counter.