Building Permits

Building permits
Building permits are required to build, enlarge, alter, remove, demolish, or repair a structure in the City of San Mateo. This includes everything from houses and garages to commercial construction, tenant improvements to signs.

Electrical permits
Electrical permits are required for the installation of new electrical service equipment, existing service relocations, service upgrades as well as fixed appliances and equipment connections.

Mechanical permits
Mechanical permits are required for the installation and repair of heating, ventilating, cooling and refrigeration systems.

Plumbing permits
Plumbing permits are required for the installation, removal, alteration, or replacement of any plumbing, gas or drainage piping work or any fixture or water heating equipment in a building or premises.

Applying for a Building Permit
To apply for a building permit for any structural changes, or to add square footage to an existing structure, you need to:
  • submit construction drawings,
  • complete an application form,
  • and pay necessary fees.
Simple alteration projects can often be approved while you wait. For further information on permit requirements for your particular project call a permit technician at (650) 522-7172.

Building permit fees
Building permit fees vary according to the type of construction. General building permit fees are based on the valuation of the project. Itemized fee are charged for subcontract permits, such as plumbing, electrical, mechanical, sign and fire department life/safety permits.