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About Public Works
PUBLIC WORKS AND ENGINEERING DEPARTMENT
The Public Works Department is comprised of three main divisions: Administration and Engineering, Environmental Programs, and Utilities and Operations.
Together, these divisions provide essential services for the community, including infrastructure maintenance, water services, safe roads and sidewalks, street sweeping, storm drainage improvements, sewer collection systems, high-quality drinking water, parks maintenance, facilities maintenance, wastewater treatment, and traffic safety efforts.

DEPARTMENT MISSION STATEMENT
To provide safe, reliable, and sustainable infrastructure and services that enhance the quality of life for the Millbrae community. We are committed to excellence in maintaining and improving our public spaces, transportation systems, water and wastewater infrastructure, and environmental resources through innovation, integrity, and responsive service.
Contact Us
- General/Public Works inquiries: 650-259-2339
- Utilities and Operations: 650-259-2374
- Water Billing (Finance): 650-259-2420
Permit Services
The Public Works Department processes a variety of permits to support safe construction and maintenance activities in Millbrae.
Please review the latest guidance below:
- Encroachment Permits
New encroachment permit applications can be submitted via email (preferred) or in person during Permit Counter Hours: between 9:00am to 12:00pm. Inspection services are available by appointment between 1:00pm and 4:00pm. To schedule an inspection, call 650-259-2380. - Parking Permits
Parking permits for FY 2025-26 will expire on June 30, 2026. New or renewal application options include:- Mail-in applications with supporting documents (allow approximately five business days for processing)
- In-person processing from 9:00am to 4:00pm
For full details, please visit the Parking Permit Program page.
- Tree Permits
The preservation and maintenance of Millbrae's trees are a shared responsibility. Our office is open Monday through Friday, 9:00am to 4:00pm.- Tree Pruning Permit (no fee) can be submitted:
- In the "Water Payment" drop box at City Hall
- At the Engineering Department front counter
- By mail to 621 Magnolia Ave, Millbrae, CA 94030
- Or via email at treepermits@ci.millbrae.ca.us
- Tree Pruning Permit (no fee) can be submitted:
- Tree Removal Permits may be submitted to the Community Development Department and are subject to a fee. Please refer to our Tree Permits page for more information on the application process.
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Public Works
Physical Address
621 Magnolia Avenue
Millbrae, CA 94030
Phone: 650-259-2339