updated 11/10/22

Permits are required for most construction activities in the County.   Below is a list of common projects that require permitting.  Also, included is an inclusive list of work exempt from permitting. 

If your project is not described on either list or you are unsure if a permit is required, please contact a
Permit Coordinator for further assistance.

(not inclusive)

  • New construction
  • Remodels that include structural work
  • Additions
  • Decks (30" or more above grade)
  • Covered patios/carports
  • Garages
  • Storage sheds (larger than 200 sf)
  • Accessory structures (larger than 800 sf)
  • Plumbing
  • Mechanical work (i.e. hot water heaters, propane/gas tanks, ductless heat pump, fire place, etc.)
  • Demolitions
  • Utility work
  • Bridges
  • Grading and filling
  • Driveways
  • Insulation
  • Re-roof if replacing or repairing structural components



For more information regarding projects exempt from the permitting process, please contact the Grays Harbor County Planning and Building Division at (360) 249-4222 or by email at pbd@graysharbor.us


Still can't find what you are looking for?

Grays Harbor County
Planning & Building Division

100 West Broadway Avenue, #31
Montesano, WA 98563