Welcome to the City of Mill Valley's Building Division

The Building Division is responsible for reviewing plans, issuing permits, and doing field inspections while enforcing state construction laws and local ordinances that protect our residents. The Building Division works closely with Planning, Code Enforcement, Public Works, and Fire Protection to help maintain a safe and livable community. 

Registered Contractors & Other Professionals ONLY

Apply Online Here (eTRAKit)

New Professional Account:
Email your CSLB number and primary business email address to

Questions? Email us!

We strongly encourage email communication regarding code questions and interpretation, department policies, and other Building related issues.