Building Safety in Franklin County, WA (2026)
3 rules for unincorporated Franklin County, Washington.
Verified from official government sources
Building Permits
Franklin County adopts the 2021 International Building Code and International Residential Code, and requires a building permit from the Planning and Building Department before covered work starts. A permit lapses if work is not started within 180 days or is suspended for 180 days.
Franklin County Building Permit Requirement
Some RestrictionsFranklin County Code §§ 15.12.020, 15.12.230
The 2021 edition of the International Building Code, as published by the International Code Council, is hereby adopted by reference with the following additions of Appendix Chapters: C, D, E, H, I, and J, as if fully set out in this chapter. ... "A building permit shall be obtained from the Franklin County Planning and Building Department. The permit shall expire by limitation and become null a...
Plumbing Permits
Franklin County adopts the 2021 Uniform Plumbing Code, with Washington's amendments, to govern plumbing work in the unincorporated county. A plumbing permit costs a $40 base fee plus per-fixture charges, and unpermitted work doubles the fee.
Franklin County Plumbing Permit Rules
Some RestrictionsFranklin County Code §§ 15.12.050, 15.12.190
The 2021 edition of the Uniform Plumbing Code, published by the International Association of Plumbing and Mechanical Officials, is hereby adopted by reference with the following additions of Appendix chapters of A, B, E and I and deleting T-104.5, Chapters 12 and 14, as if fully set out in this chapter. ... PLUMBING PERMIT FEE TABLE 1.Permit . . $40.00
Building Inspections
Before Franklin County issues a certificate of occupancy, every required inspection under the adopted International Building, Residential, Plumbing, Mechanical, Fuel Gas, and Fire codes must be requested and pass. Electrical work needs separate state Labor and Industries sign-off, and some projects need county health department approval too.
Franklin County Building Inspection Requirements
Some RestrictionsFranklin County Code § 15.12.220
When required, all inspections per the most recently adopted editions of the International Building Code (IBC), International Residential Code (IRC), Uniform Plumbing Code (UPC), International Mechanical Code (IMC), International Fuel Gas Code (IFGC) and International Fire Code (IFC) shall have been requested and approved prior to the issuance of a certificate of occupancy. Other final approval...
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