Building Code Update

Beginning January 1, 2026, all building permit applications must comply with the 2025 Building Code.

The City of Walnut Creek has fully committed to an all-online permitting system – all permit types shall be applied for via our Online Permit Portal. We are no longer accepting paper or emailed permit applications. This electronic platform helps to streamline the permitting process, allows for customer transparency with permit activity, and provides online permit services.

The online portal is not mobile device friendly - it works best on a desktop or a laptop. We recommend using Google Chrome or Microsoft Edge to apply for your permit.

Apply for a Building Permit

Building permits are required when you add structures to your property or physically change your property. This permit applies to commercial and residential properties.

Building permit examples (this is not a complete list):

Some work doesn’t need a permit. 

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An after-hours permits

An after-hours permit is required for construction on Saturdays and City Holidays. Contact staff for more information. 

Contact

Building Staff
call 925-943-5834
email Buildingtech@walnutcreekca.gov