Edmonds, WA Building Safety: Plumbing Permits (2026)
Key Facts
- Adopted code
- 2021 Uniform Plumbing Code
- Appendices adopted
- A, B, I and M
- Excluded
- Fuel gas piping provisions
- Locally deleted
- UPC Chapters 12 and 14
- Pre-permit check
- Adequate potable water supply required
- Well applicants
- State appropriation approval + water test
Summary
Edmonds regulates plumbing work under the 2021 Uniform Plumbing Code as amended by the state Building Code Council, and the building official must confirm an adequate potable water supply before issuing a building permit for any new development.
The Uniform Plumbing Code (UPC), 2021 Edition, including Appendices A, B, I and M, published by the International Association of Plumbing and Mechanical Officials, as amended by the Washington State Building Code Council in Chapter 51-56 WAC, and as subsequently amended by this chapter; provided, that any provisions that affect fuel gas piping are not adopted, is hereby adopted. ... Prior to the issuance of any building permit for new development, the building official shall require substantive evidence of an adequate potable water supply from the purveyor of water to the site for which a building permit is requested.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 4444, passed August 3, 2026).
Full Breakdown
000 adopts the 2021 Edition of the Uniform Plumbing Code, including Appendices A, B, I and M, published by the International Association of Plumbing and Mechanical Officials, as amended by the Washington State Building Code Council in Chapter 51-56 WAC; provisions affecting fuel gas piping are specifically excluded from local adoption. 015. 025(A)): the Uniform Plumbing Code governs installation, alteration, repair and replacement of plumbing systems, including equipment, appliances, fixtures, fittings and appurtenances connected to a water or sewage system, and all aspects of medical gas systems.
010 requires the building official to obtain substantive evidence of an adequate potable water supply from the site's water purveyor before issuing any building permit for new development; a notification letter from Edmonds's own water utility satisfies that requirement inside the utility's service area, while applicants relying on a private well must supply the state's water-right appropriation approval and a current water quality test from a qualified laboratory.
Violations & Fines
Plumbing work performed without a required permit, or in violation of the adopted Uniform Plumbing Code, is enforced as a building code violation under ECDC 19.85.000, a misdemeanor with each day of noncompliance treated as a separate offense punishable under ECC 5.50.020.
Frequently Asked Questions
What plumbing code applies in Edmonds?
Does Edmonds require proof of water supply before issuing a plumbing/building permit for new construction?
What plumbing work in Edmonds needs a permit?
Sources & Official References
Other rules in Edmonds
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