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County building permits

Unincorporated Grays Harbor County

How to apply for a building permit in unincorporated Grays Harbor County, Washington. Permit authority, application steps, fees, and inspection requirements.

Avg processing
Varies by permit type.
Last verified
April 2026
On this page 6
§ 01

Permit authority

Planning and Building Department

Street address
100 West Broadway Ave., Suite 31, Montesano, WA 98563
Coverage
All unincorporated areas of Grays Harbor County.
Online portal
SmartGov Community
SmartGov Community
§ 02

When a permit is required

Permit triggers and exempt work for Grays Harbor County

Just about everything requires a building permit in unincorporated Grays Harbor County.

Accessory structures 800 square feet or less (in certain zoning districts)
Storage sheds 200 square feet or less
Agricultural buildings 5,500 square feet or less (in certain zoning districts)
Painting
Fence replacement (if not too tall)
Re-roofing (if not replacing structural components)
  • Exempt Accessory structures 800 square feet or less (in certain zoning districts)
  • Exempt Storage sheds 200 square feet or less
  • Exempt Agricultural buildings 5,500 square feet or less (in certain zoning districts)
  • Exempt Painting
  • Exempt Fence replacement (if not too tall)
  • Exempt Re-roofing (if not replacing structural components)

Note: If grading or filling required for exempt structure, building permit still needed.

Required documents
  • Site plan (sketch acceptable for new construction/additions; show overall future plans)
Building code
International Building Code (IBC) with Washington State amendments
Contractor requirements
Washington State L&I registration required.

Source: Planning and Building Department ↗

§ 03

Application process

Typical processing: Varies by permit type.

  1. 01
    Create profile on online portal (click Sign Up)
  2. 02
    Review application checklists in Document Center
  3. 03
    Submit application with required documents
  4. 04
    Pre-application conference recommended (especially for commercial; available via Microsoft Teams)
  5. 05
    Participate in application review (timelines vary by permit type)
  6. 06
    Pay fees online
  7. 07
    Download approved permits
  8. 08
    Request inspections through portal

Typical processing time: Varies by permit type.

Source: Planning and Building Department ↗

§ 04

Fee schedule

Grays Harbor County building permit fees

Fee type
Amount
01
Permit fee formula
Based on project valuation

Paid online through portal. Contact Permit Coordinator for current rates.

§ 05

Required inspections

Scheduling and sequence

How to schedule
Scheduling deadline
Cutoff time: 12:00 AM (midnight) for next-day inspection requests.
Inspection hours
Most inspections conducted 8:00 AM - 4:30 PM

Typical sequence: Same-day inspections not accepted.

Source: Planning and Building Department ↗

§ 06

Frequently asked

Common questions about unincorporated Grays Harbor County permits

01 Do I need a building permit in unincorporated Grays Harbor County, WA?
Just about everything requires a building permit in unincorporated Grays Harbor County.
02 How much does a building permit cost in unincorporated Grays Harbor County, WA?
Building permit fees in unincorporated Grays Harbor County, WA are set by the local building department and vary by project type and valuation. Fees are calculated as: Based on project valuation.
03 How do I apply for a building permit in unincorporated Grays Harbor County, WA?
To apply for a building permit in unincorporated Grays Harbor County, WA, follow these steps: 1. Create profile on online portal (click Sign Up) 2. Review application checklists in Document Center 3. Submit application with required documents 4. Pre-application conference recommended (especially for commercial; available via Microsoft Teams) 5. Participate in application review (timelines vary by permit type) 6. Pay fees online 7. Download approved permits 8. Request inspections through portal
04 How long does it take to get a building permit in unincorporated Grays Harbor County, WA?
Building permit processing times in unincorporated Grays Harbor County, WA typically run Varies by permit type.. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in unincorporated Grays Harbor County, WA?
Not all construction work requires a permit in unincorporated Grays Harbor County, WA. The following work is generally exempt: Accessory structures 800 square feet or less (in certain zoning districts); Storage sheds 200 square feet or less; Agricultural buildings 5,500 square feet or less (in certain zoning districts); Painting; Fence replacement (if not too tall); Re-roofing (if not replacing structural components). Note: If grading or filling required for exempt structure, building permit still needed. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in unincorporated Grays Harbor County, WA?
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in unincorporated Grays Harbor County, WA via: SmartGov portal, Environmental Health for septic inspections. Cutoff time: 12:00 AM (midnight) for next-day inspection requests..
last verified April 2026 source Planning and Building Department ↗ entry id permits/washington/grays-harbor/unincorporated

Educational reference. Permit rules and fees change — confirm current requirements directly with Planning and Building Department before applying. Jaspector is not legal advice.