City Building Permits

Millbrae, CA Building Permit Guide

How to apply for a building permit in Millbrae, California. Permit authority, application steps, fees, and inspection requirements.

California San Mateo County Updated March 2026

Permit Authority

City permit administration is for work within City of Millbrae; other departments (engineering, fire, health, public works, etc.) may also require review/approvals.

Department
City of Millbrae Building Division (Community Development Department)
Address
621 Magnolia Avenue, Millbrae, CA 94030
Phone
650-259-2330

Online Permit Portal

Platform: E-Process360 (City online permitting portal) • Account required: Yes • Submission: Online only

Application Process

  1. Register/ log in to the City online permitting portal.
  2. Start a new building/electrical/plumbing/mechanical application and complete required application pages (Information, Scope of Work, Application, Submittals).
  3. Upload required plans and documents in PDF format and provide property/party details and valuation.
  4. Submit electronically; staff checks for completeness and issues review comments if missing items exist.
  5. Pay required plan check fees at submittal time.
  6. Wait for plan-check routing/review across City departments, then address corrections if issued.
  7. Receive permit issuance when all conditions are satisfied.

Typical processing time: No-plan permits are commonly issued in 1�2 business days; prepared-plan permits have a stated 15-business-day review target, with small kitchen/bath remodels often 2�5 business days.

Source: City of Millbrae Building Division (Community Development Department)

General Requirements

Building new or altered structures; work on electrical/plumbing/mechanical systems; demolition where no separate planning approval route is required.

Required Documents

  • Project scope details, project valuation, address and party info, electronic plans/specs/energy/calculation docs as applicable, and required attachments.
Permit validity
Not clearly stated as a public, one-line policy on the permit portal pages.
Building code
California Building Code, Residential Code, Electrical Code, Mechanical Code, Plumbing Code, Energy Code, Fire Code, Green Building Standard Code, Wildland-Urban Interface Code (all 2025 editions per City guidance).
Owner-builder
Permit application includes owner-builder disclosure language referencing California contractor-licensing exemption requirements.
Contractor requirements
Application form includes CSLB license fields; City states all contractors need a valid current City of Millbrae business license; owner-built permit work must still follow contractor licensing-law disclosure requirements.

Fees

Minimum permit fee
published fee schedule lists standalone permit issuance at $138.01 and additional plan review/valuation-based components (actual minimum depends on permit type and scope).
Plan check fee
due at time of plan submittal; amount determined by staff.
Permit fee formula
valuation-based rates for many work classes plus flat/administrative fees and staff-determined charges for plan review and related fees.
Reinspection fee
Reinspection-related fee entries appear in the current fee schedule (e.g., hourly inspection rates); older FAQ notes extra inspections after repeated failures, which appears older than current schedule and may be superseded.
Payment note
City accepts debit and credit cards; multiple supplemental impact, utility, and school-district fees may apply for qualifying projects.

Fees change. Verify current amounts at the official fee schedule.

Work That Does NOT Require a Permit

Important: exemptions are narrow and fact-specific; related departments (fire, planning, health, environmental, utility providers) may impose additional non-building approvals.

Inspections

How to Schedule

Inspection hours
Building inspections are conducted Monday through Friday, 9:00 a.m.�12:00 and 1:00�4:30; office support for scheduling is generally 8:30 a.m.�4:00/4:30 p.m.

Typical inspection sequence: permits are required for each phase and inspections should occur before work is covered; staged inspections include underground/rough work and final completion stages.

Additional Resources

Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the City of Millbrae Building Division (Community Development Department) before applying.

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Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

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