Building Safety in Walla Walla County, WA (2026)
3 rules for unincorporated Walla Walla County, Washington.
Verified from official government sources
Building Permits
Unincorporated Walla Walla County adopts the International Building, Residential, Mechanical, Fire and Fuel Gas Codes and the Uniform Plumbing Code as its state-mandated building code, and the community development department issues the permits those codes require before anyone builds, grades, plumbs, or installs mechanical or gas systems. Starting work first doubles your fee.
Building Permits Required in Walla Walla County
Some RestrictionsWalla Walla County Code §§ 15.04.030, 15.04.031
There is adopted by the county of Walla Walla, state of Washington, the State Building Code, state of Washington, consisting of the current codes as adopted, amended or hereafter adopted and amended by the state: the International Building Code (IBC), International Residential Code (IRC), ICC/ANSI A117.1 Accessible and Usable Buildings and Facilities, International Mechanical Code, Liquefied Pe...
Plumbing Permits
Unincorporated Walla Walla County requires a plumbing permit under the adopted Uniform Plumbing Code for regulated plumbing work, with fees set in Chapter 3.08, and starting work before the permit issues doubles the fee except for emergency repairs that cannot practically wait.
Plumbing Permits in Walla Walla County
Some RestrictionsWalla Walla County Code §§ 15.04.150, 15.04.160
The Uniform Plumbing Code, current edition, as adopted, amended or hereafter amended by the state of Washington and published by the International Association of Plumbing and Mechanical Officials, is adopted, excepting Chapter 12, fuel gas piping. ... Every applicant for a plumbing permit to do work regulated by this code shall pay for each permit, the fee as set forth in Chapter 3.08. Any pers...
Building Inspections
In unincorporated Walla Walla County, the community development building official enforces the adopted International Building, Residential, Mechanical and Fire Codes and the Uniform Plumbing Code, holding the powers of a law enforcement officer for that purpose. Inspectors may enter any building, structure or premises at reasonable times after presenting credentials, and can halt noncompliant work on the spot with a written stop-work order.
Building Inspections in Walla Walla County
Some RestrictionsWalla Walla County Code §§ 15.04.220, 15.04.250, 15.04.260
Pursuant to Section 104 of the International Building Code, International Residential Code, International Mechanical Code, International Fire Code, and Section 102 of the Uniform Plumbing Code, the building official is authorized and directed to enforce all the provisions of this code and the referenced technical codes. For such purposes, the building official shall have the powers of a law enf...
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