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Grays Harbor County, WA Building Safety: Building Inspections (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Enforcing agency
Planning and Building Division / Building Official
Final inspection
Required before any occupancy or occupancy change
Energy inspection covers
Envelope, fenestration, duct R/U values, HVAC/water heating
Exempt work
No final inspection needed under Section R105.2
Appeals
Building Codes Advisory Council (Ch. 2.14, 15.16)

Summary

In unincorporated Grays Harbor County, no building or structure may be used or occupied until the building official completes a final inspection under the amended International Residential Code. New construction must also pass an energy-code inspection covering insulation, fenestration, ductwork and HVAC/water-heating efficiency before the planning and building division signs off, with only permit-exempt work skipping the final inspection step.

These county ordinances apply to unincorporated areas of Grays Harbor County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

110.3.9 Energy efficiency inspections. Inspections shall be made to determine compliance with the Washington State Energy Code and shall include, but not be limited to, inspections for: envelope insulation R and U values, fenestration U value, duct system R value, and HVAC and water-heating equipment efficiency. ... R110.1 Use and occupancy. No building or structure shall be used or occupied, and no change in the existing occupancy classification of a building or structure or portion thereof shall be made until the building official has completed a final inspection as provided herein. The completion of the final inspection shall not be construed as an approval of a violation of the provisions of this code or of other ordinances of the jurisdiction. A final inspection presuming to give authority to violate or cancel the provisions of this code or other ordinances of the jurisdiction shall not be valid. Exception: Final inspections are not required for work exempt from permits under Section R105.2.

Full Breakdown

Grays Harbor County amends the International Residential Code and International Building Code sections governing inspections in Chapter 15.04 of the county code, administered by the planning and building division under the building official. Section R110.1, Use and occupancy, bars anyone from using or occupying a building or structure in unincorporated Grays Harbor County, and bars any change in occupancy classification, until the building official has completed a final inspection. The code is explicit that a final inspection does not excuse or approve any violation already on the books: the completion of the final inspection shall not be construed as an approval of a violation of the provisions of this code, and a final inspection cannot be used to argue the county has waived any other ordinance. The only carve-out is for work that never needed a permit in the first place under Section R105.2, such as minor accessory structures and finish work; that work is not subject to the final-inspection requirement at all.

Separately, Section 110.3.9 requires an energy-efficiency inspection on every project reviewed for compliance with the Washington State Energy Code. Inspectors check envelope insulation R and U values, the fenestration U value, the duct system R value, and the efficiency rating of the HVAC and water-heating equipment before a project can close out. Both inspection steps sit inside the same permitting chain: an owner first obtains a building permit under Section 105.1, work proceeds under whatever intermediate inspections the building official schedules, and the file cannot close, and the building cannot be occupied, until the final inspection under R110.1 is complete. Appeals of an inspection-related determination go to the county's Building Codes Advisory Council under Chapter 2.14 and Chapter 15.16.

Violations & Fines

Using or occupying a building, or changing its occupancy classification, before the building official completes the final inspection violates Section R110.1 and exposes the owner to code enforcement action under Chapter 8.40. A final inspection never excuses a violation already on record, and Section 114.1 bars the county from issuing further permits on a property with unresolved violations. Failing the energy-efficiency inspection under Section 110.3.9 stops the final inspection, and the certificate of occupancy, until envelope, fenestration, duct and HVAC/water-heating deficiencies are corrected.

Frequently Asked Questions

Can I move into a new home in unincorporated Grays Harbor County before the final inspection?
No. Section R110.1 of the county's amended International Residential Code bars occupancy, and any change in occupancy classification, until the building official has completed the final inspection. The code says the final inspection cannot be read as approving any code violation on the property, so passing it does not erase issues the county has already flagged in writing.
What does the county's energy-efficiency inspection check?
Section 110.3.9 directs inspectors to verify compliance with the Washington State Energy Code, covering at minimum the envelope insulation R and U values, the fenestration U value, the duct system R value, and the efficiency of the HVAC and water-heating equipment installed in the project.
Does every project need a final inspection?
No. Work that never required a building permit in the first place under Section R105.2, such as minor finish work or small exempt accessory structures, is not subject to the Section R110.1 final-inspection requirement, since the exception applies specifically to permit-exempt work and there is no permit file for the building official to close out.
Who signs off on inspections in unincorporated Grays Harbor County?
The planning and building division administers Chapter 15.04's building, residential, mechanical and plumbing code amendments in unincorporated Grays Harbor County, and the building official is the officer who personally completes the final inspection and any required energy-efficiency inspection before a project can be legally occupied.

Sources & Official References

Other rules in Grays Harbor County

All Grays Harbor County rules

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