Plumbing permit — Walla Walla, Washington · Requirements sheet
Verified 2026-09-16 · Source: https://ecode360.com/46549097
PermitBase is an independent reference and is not affiliated with any government agency. Requirements change and vary by project — confirm current details with the building department before you submit.
Plumbing permit in Walla Walla, Washington
Permit for plumbing installations in Walla Walla under the Uniform Plumbing Code adopted at WWMC 15.04.012.
Verified 2026-09-16 · Source
When you need this permit
- WWMC 15.04.012 adopts “The 2021 Edition of the Uniform Plumbing Code, published by the International Association of Plumbing and Mechanical Officials”, including named appendices beginning with Appendix A (Recommended Rules for Sizing the Water Supply System) and Appendix B (Explanatory Notes on Combination Waste and Vent Systems).
- The Uniform Plumbing Code is LAST in the city's own conflict-priority order at WWMC 15.04.005(A) — behind the IBC, IRC, IMC and IFC — so where it conflicts with any of those, it yields.
- A THREE-TRIGGER EXPIRY, AND ANY ONE OF THEM VOIDS THE PERMIT. WWMC 15.04.005(G): “All permits shall expire by limitation and be declared void if: 1. Work is not started within one hundred eighty days of obtaining a permit, 2. Work is abandoned for one hundred eighty days or more after beginning work, or 3. After two years from the date of permit issuance, regardless of whether the work is finished.” The third is absolute — steady visible progress does not save a permit at two years. This matches the structure Puyallup and Wenatchee publish, and differs from SeaTac, which times a permit by what it builds rather than by whether work is happening.
- AN APPROVED APPLICATION CAN STILL GO VOID BEFORE YOU HOLD A PERMIT. WWMC 15.04.005(G): “When an applicant has been notified that their permit application has been approved and is ready to purchase, the applicant shall obtain the permit within thirty days of notification or said permit application shall become void.”
- THE ROLLING CLAUSE IS NOT IN THE ADOPTING SENTENCE — IT IS ITS OWN SECTION, AND A PHRASE-BASED AUDIT WOULD MISS IT. WWMC 15.04.030: “The amendment, addition or repeal of any section of any of the adopted codes, regulations, or statutes shall be deemed to amend this chapter and the codes, regulations, and statutes contained in this chapter are adopted by reference in conformity with the amendment, addition or repeal, and it shall not be necessary for the legislative authority of this city to take any action with respect to such addition, amendment or repeal as provided by RCW 35A.12.140.” MEASURED, NOT ASSUMED: a regular expression for the usual rolling formulations (“as now or hereafter amended”, “as the same exists”, “may hereafter be amended”, “as now in effect”) returns NOTHING across all 75,567 characters of Chapter 15.04. The years are named and the state layer still rolls; the two facts just live in different sections.
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Fee schedule
WWMC 15.04.050(C)(1) states both issuance fees IN WORDS: “For issuing each permit: twenty-three dollars” and “For issuing each supplemental permit: thirteen dollars.” A per-fixture schedule then… Show full citationHide
WWMC 15.04.050(C)(1) states both issuance fees IN WORDS: “For issuing each permit: twenty-three dollars” and “For issuing each supplemental permit: thirteen dollars.” A per-fixture schedule then applies under (C)(2), almost all of it at $10.00 — water closet, lavatory, shower, bathtub, kitchen sink, laundry sink, floor drain, clothes washer, dishwasher, disposal, water piping, lawn irrigation backflow, drinking fountain, hose bibs, electric water heater, sump pump, miscellaneous sink, gas piping, urinal, miscellaneous fixtures, drain/waste/vent piping and grease trap — with the building sewer the one $20.00 item. Plan review at 65 percent and any state surcharge are additional.TWO CHARGES SIT ON TOP OF EVERY PERMIT FEE AND NEITHER IS IN THE TIER TABLE. Show full citationHide
TWO CHARGES SIT ON TOP OF EVERY PERMIT FEE AND NEITHER IS IN THE TIER TABLE. WWMC 15.04.050(A)(5): “plan review fees in the amount of sixty-five percent of the applicable permit fee, plus state surcharges which may apply, shall be due and payable upon filing of permit application.” 15.04.050(A)(6) names the surcharges: $6.50 for building permits, $2.00 “for each additional unit for a building containing more than one residential unit”, and $25.00 for commercial building permits. So the cash due at application is roughly 1.65x the table figure plus a surcharge. WALLA WALLA AND LONGVIEW USE THE SAME PERCENTAGE SHAPE AND ONLY ONE OF THEM IS COMPUTABLE: Longview publishes 65/70/30 percent over a master fee schedule it does not print, while Walla Walla publishes both the percentage AND the base table it applies to.THE PUBLISHED HOURLY RATE IS A FLOOR, NOT A PRICE. Show full citationHide
THE PUBLISHED HOURLY RATE IS A FLOOR, NOT A PRICE. WWMC 15.04.050(A)(7) charges $65.00 per hour for inspections outside normal business hours (two-hour minimum), reinspections, inspections for which no fee is specified, and additional plan review caused by changes (half-hour minimum) — but footnote 1 reads “Or the total hourly cost to the city of Walla Walla, whichever is greater. This cost shall include supervision, overhead, equipment, hourly wages and fringe benefits of the employees involved.” Quoting $65.00 per hour on its own would understate it. Outside consultants are billed at “Actual costs”, which footnote 2 says “include administrative and overhead costs.”Review timeline
Inspection process
Tips
- PLUMBING IS PRICED PER FIXTURE, SO A SMALL REMODEL ADDS UP IN $10.00 STEPS on top of the twenty-three dollar issuance fee. Count the fixtures before assuming a plumbing permit is a flat charge — and note the building sewer is the one $20.00 line.
- IF THE PLUMBING CODE AND THE BUILDING, RESIDENTIAL, MECHANICAL OR FIRE CODE DISAGREE, THE UPC LOSES. WWMC 15.04.005(A) puts it last in an explicit priority order.
Frequently asked questions
Sources & verification
Verified against official sources. Last reviewed 2026-09-16.
Codes & ordinances
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Walla Walla building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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