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Plumbing Permit in Lynnwood, Washington

Required for plumbing work in Lynnwood under LMC Chapter 15.04, using the Uniform Plumbing Code rather than the International Plumbing Code.

Verified 2026-09-16 · Source

When you need this permit

  • “the latest edition of the Uniform Plumbing Code (UPC) less Chapters 12 and 15”, under Chapters 51-56 and 51-57 WAC (LMC 15.04.010)
  • A conflict rule is written into the adopting sentence: “in the event of a conflict between the International Fire Code and the Uniform Plumbing Code, the International Fire Code shall govern”
  • IRC Chapters 25 through 43 are not adopted, so residential plumbing is permitted here
  • Valuation for fee purposes “shall include all costs related to construction and shall be set by the Building Official using a nationally recognized value table” (LMC 15.04.040)

Required documents

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Fee schedule

Permit fee
Lynnwood deletes the model code's own fee schedule in every code it adopts and replaces it with the same sentence. Show full citationLynnwood deletes the model code's own fee schedule in every code it adopts and replaces it with the same sentence. LMC 16.04.100 (IBC § 109.2): “Fees shall be set forth in a fee ordinance adopted, and from time to time amended, by the city council.” LMC 16.09.050 repeats it for the IRC, LMC 15.04.040 for the UPC, LMC 15.08.030 for the IMC and LMC 16.10.090 for electrical. NO DOLLAR AMOUNT APPEARS IN THE CODE and none is asserted here. NOTE THE INSTRUMENT: a fee ORDINANCE, which is a third distinct authority within this Washington set — Edmonds uses a council RESOLUTION and Puyallup an EXECUTIVE ORDER of the city manager. Ask the city for the current fee ordinance.
Set by city council fee ordinance

Review timeline

Plan review
Not published — contact the department

How long did your Plumbing Permit permit actually take in Lynnwood?

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Inspection process

    Tips

    • Lynnwood is a Uniform Plumbing Code city and it adopts the UPC “less Chapters 12 and 15”, so two chapters of the book you may be working from simply do not apply here. Two WAC chapters are cited, 51-56 and 51-57, because the code and its standards are adopted separately.
    • The fire code wins ties. LMC 15.04.010 writes the tie-break into the adoption itself: where the International Fire Code and the Uniform Plumbing Code conflict, “the International Fire Code shall govern.” That is unusual to find in an adopting sentence rather than a general conflicts section.
    • Your permit valuation is not your contract price alone: LMC 15.04.040 says value of work “shall include all costs related to construction” and is set by the building official from a nationally recognised value table, so the figure the city uses may exceed what you quoted.

    Frequently asked questions

    Lynnwood requires a plumbing permit for: “the latest edition of the Uniform Plumbing Code (UPC) less Chapters 12 and 15”, under Chapters 51-56 and 51-57 WAC (LMC 15.04.010); A conflict rule is written into the adopting sentence: “in the event of a conflict between the International Fire Code and the Uniform Plumbing Code, the International Fire Code shall govern”; IRC Chapters 25 through 43 are not adopted, so residential plumbing is permitted here; Valuation for fee purposes “shall include all costs related to construction and shall be set by the Building Official using a nationally recognized value table” (LMC 15.04.040). If your project isn't listed, confirm with City of Lynnwood at (425) 670-5000 before starting work.

    In Lynnwood, the published Permit fee is: Set by city council fee ordinance. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

    Lynnwood does not publish a plan-review timeline for this permit. Contact City of Lynnwood at (425) 670-5000 for current turnaround.

    You'll need: Plumbing Permit Application. See the required-documents checklist on this page for details on each.

    Apply through City of Lynnwood at 19100 44th Ave W, Lynnwood, WA 98036. Phone: (425) 670-5000. Official information: https://www.lynnwoodwa.gov/.

    Lynnwood, Washington has adopted: NO EDITION YEAR IS NAMED FOR ANY CODE, AND THE CITY USES THREE DIFFERENT PHRASINGS FOR IT. The IBC is “the latest edition”, the IRC “the latest adopted version”, and the NEC “the Washington State adopted National Electrical Code”. A delegated binding has no canonical wording, so it cannot be found by searching for a phrase.; IBC — LMC 16.04.010: “As amended by the provisions of this chapter and the State of Washington Building Code Council, under Chapter 51-50 WAC, the latest edition of the International Building Code, published by the International Code Council, together with Appendices E, G, and J, one copy of which, along with the State of Washington Building Code Council’s amendments, shall be on file in the office of the Lynnwood city clerk, are adopted by reference.”; IRC — LMC 16.09.010: “… the latest adopted version of the International Residential Code (IRC), published by the International Code Council, except Chapters 11 and 25 through 43 … is adopted by reference.” Chapter 11 (energy) and Chapters 25 through 43 (the plumbing, mechanical and electrical parts of the IRC) are excluded, which is why plumbing and mechanical sit in LMC Title 15 and electrical in LMC Chapter 16.10.; IECC — LMC 16.05.010: “As amended by this chapter and the State of Washington Building Code Council, under Chapters 51-11R and 51-11C WAC, the latest edition of the International Energy Conservation Code (IECC), as published by the International Code Council … is adopted by this reference.”; UPC — LMC 15.04.010: “… under Chapters 51-56 and 51-57 WAC, the latest edition of the Uniform Plumbing Code (UPC) less Chapters 12 and 15 published by the International Association of Plumbing and Mechanical Officials … are adopted by this reference; provided, that in the event of a conflict between the International Fire Code and the Uniform Plumbing Code, the International Fire Code shall govern.”; IMC — LMC 15.08.010: “As amended by this chapter and the State of Washington Building Code Council, the latest edition of the International Mechanical Code (IMC), as published by the International Code Council … are adopted by this reference.” NOTE THE ASYMMETRY: this is the ONLY adoption section in either title that does not cite a Chapter 51-xx WAC number. Every sibling names one.; NEC — LMC 16.10.050: “As amended by the provisions of this chapter, the Washington State adopted National Electrical Code (NEC) issued by the National Fire Protection Association including Annex A, B, and C is adopted by reference.”; STRUCTURE: the mechanical code lives in the PLUMBING title. LMC Title 15 is headed “PLUMBING” and contains exactly two chapters — 15.04 Uniform Plumbing Code and 15.08 International Mechanical Code. Title 16 (Building) carries the IBC, IRC, IECC, electrical, ISPSC, IPMC and flood provisions, and its own footnote directs: “for plumbing, see LMC Title 15”.; NOT OPENED FOR THIS ENTRY and therefore not asserted: LMC 16.24 (International Swimming Pool and Spa Code), 16.44 (International Property Maintenance Code), 16.46 (Flood Hazard Area Regulations), 16.08 (Regulation and Abatement of Unsafe and Unsanitary Structures), 16.20 (Building Moving), 16.14 (Underground Utilities), 16.40 (Temporary Sales/Leasing Office) and 16.50 (Appeals).. Local amendments apply — see the Lynnwood overview page for the full list.

    The Uniform Plumbing Code. LMC 15.04.010 adopts “the latest edition of the Uniform Plumbing Code (UPC) less Chapters 12 and 15 published by the International Association of Plumbing and Mechanical Officials”, as amended by the State Building Code Council under Chapters 51-56 and 51-57 WAC. The same sentence adds a conflict rule: where the International Fire Code and the UPC disagree, the International Fire Code governs. No edition year is named.

    Sources & verification

    Verified against official sources. Last reviewed 2026-09-16.

    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 Lynnwood building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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