Accessory structure building permit

You need a building permit if you are building a structure that is separate from your house, like:

  • Garages and carports (detached and attached)
  • Detached buildings, like a home office or workshop
  • Storage buildings
  • Large play structures

Some accessory structures don’t need permits, like sheds or playhouses. To be exempt from permits, they need to be:

  • 1-story
  • Less than 7 feet in height
  • Detached
  • Less than 120 square feet

If your structure has a cooking and sleeping area, you may need an accessory dwelling unit permit instead.

All exterior modifications require design review before you can get a building permit.

Apply for a permit on eTRAKiT


  • Garage, carport
  • Habitable
  • Non-habitable

Requirements and attachments

When you apply online, you can upload documents with your application. Make sure to upload all of the required documents. If your application is not complete, this will extend the time it takes to issue your permit.

  • Title page with project address, contacts, scope, date and blank area for reviewer notes (Example 11x17 | Example 24x36)
  • Overall Site Plan / Floor plan to show location of work
  • Existing and Proposed Floor Plans
  • Existing and Proposed Elevations
  • Sections, details, notes required to describe the scope of work
  • Electrical Plans of remodel area
  • Structural drawings and calculations
  • Geotechnical report, if required
  • Survey if required
  • Title 24 Residential Energy Compliance Forms if adding habitable space or Mechanical equipment
  • Construction Management Plan (Guidelines | Example)
  • Landscape Plan if required
  • WELO, if required
  • C.3 Stormwater, if required
  • Contractor or Owner-Builder Declarations (required for all projects)
  • All projects over $50k require Construction & Demolition Debris Recycling Statement (DRS)

Learn about required documents for all building permits.

Apply for a building permit on eTRAKiT

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