Message Bar

Welcome to the San Mateo County Online Permit Center

This portal provides public access to Planning and Building permits for unincorporated San Mateo County areas. Log in or register for your free account to apply for building permits, or select from the search options below.

Please review the Permit Center User Guide for instructions on creating a user account, submitting permit applications, paying invoiced fees, uploading documents, and obtaining permit status updates.

Services available without registering for an account:

• Past permit search (available from 1990). Includes planning and building permits, stop work notices and violations.

Registered Users Only:

Not all permits can be applied for through the online Permit Center. If none of the available online permits match your proposed project scope, then you must email your permit application submission. For assistance, view our permit application instructions or contact the Building Counter at (650) 599-7310.

We are accepting online applications for Residential and select Commercial Building permits. Apply and pay online for the following permits:

• Electrical Service Upgrades - Residential and Commercial
• Plumbing (water, sewer, gas lines) - Residential and Commercial
• Re-Roof - Residential and Commercial
• Siding and Stucco - Residential and Commercial
• Water Heaters - Residential and Commercial
• Windows or Doors - Residential only
• HVAC (furnace, AC, heat pumps, boilers, factory-built fireplaces, decorative gas appliances) - Residential only
• Electric Vehicle Charger - Residential only
• Electric Storage Systems - Residential only
• PV Solar - Residential only
• Fire Sprinklers - Residential and Commercial
• Temporary Power Pole - Residential and Commercial
• Skylight - Residential only
• Electric Generator - Residential and Commercial
• Demolition (Minor / Major / Pool) - Residential and Commercial
• Landscaping / Retaining Wall - Residential and Commercial
• Kitchen / Bath Remodel - Residential and Commercial
• Propane Tank / Water Storage Tank - Residential and Commercial
• Deck / Patio / Porch - Residential and Commercial
• Swimming Pool / Spa / Hot Tub / Pond - Residential and Commercial
• Detached Non-Habitable Accessory Structures - Residential
• Additions / Alteration - Residential
• New Single Family / Multi-Family / Manufactured / Detached ADU - Residential

Prior to applying for permits, verify property zoning and jurisdiction in the unincorporated County area.

• We are not currently accepting online applications for Planning permits.