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Anyone can apply for a permit online, but if this is your first time applying for a permit online, you will need to create a user account. These guides are available to help you: HomeownerContractorAttn Contractors:  To apply for these permits you will need to have an account.  If you do not already have one please contact the department at (415) 485-3367. Please contact us if you have any questions.

For additional information and plan requirements for generators click here.

**To see an example of what your generator plans should include click here  **

Building Permit Application can be found here.

Residential Generators

  • Permit type "Generator Online" sub type "Residential" for permanently installed generators. (full plans required)
  • Permit for portable generators  use sub type "Transfer Switch"  This permit will be for the modifications to the electrical panel.   Plans required:   Site Plan with generator location when in use and electrical diagram.

Commercial Generators (Check with the Planning Division before Submitting to see if your project needs a separate Planning approval)

  • Permit Type  “Generator Online”   Sub Type “Commercial”

Plans/Documents required for permitting

Three (3) sets of plans will be required. Plans should include:

  • Site plan (see example)
    • Showing all property lines and structures
    • Distance of unit to property lines and neighboring bedroom windows
  • Manufactures Specifications Including:
    • Decibel ratings for unit and distance from unit the rating is measured at.
    • Installation instructions, including details how the unit will be permanently installed
  • Electrical information
    • including modifications to be made to existing electrical service and connection to the unit.
    • Provide electrical line diagram showing all conduits and conductors (number, size, distances), transfer switches, panels, equipment, and loads.
  • Gas Schematic (see diagram)
    • Required when connecting to your existing Natural Gas system.
  • Additional Items if applicable:
    • Product documentation for any Noise reducing measures or products that may be added to the unit.
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