Mechanical Permit — Lake Stevens, Washington · Requirements sheet
Verified 2026-09-16 · Source: https://ecode360.com/48507264
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.
Mechanical Permit in Lake Stevens, Washington
Mechanical and fuel gas work in Lake Stevens is reviewed under the 2021 International Mechanical Code together with the 2021 IFGC and named NFPA standards.
Verified 2026-09-16 · Source
When you need this permit
- “2021 Edition of the International Mechanical Code … including 2021 International Fuel Gas Code, 2020 National Fire Protection Association (NFPA) 58 (Liquefied Petroleum Gas Code) and 2021 NFPA 54 (National Fuel Gas Code) with exceptions noted in WAC 51-52-003” (LSMC 14.80.010)
- FOUR EDITION YEARS APPEAR IN THAT ONE SENTENCE and they are not all the same: IMC 2021, IFGC 2021, NFPA 58 2020, NFPA 54 2021
- UPC Chapter 5 venting and combustion air requirements for fuel-fired appliances are NOT adopted, so those come through the mechanical side
Required documents
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Fee schedule
LSMC 14.80.040: “The City shall collect fees for all services rendered and activities performed in reviewing and issuing building permits. Show full citationHide
LSMC 14.80.040: “The City shall collect fees for all services rendered and activities performed in reviewing and issuing building permits. Said fees shall be set by resolution.” No dollar amount appears in the code and none is asserted here. Across this Washington set the INSTRUMENT varies and is worth knowing: Edmonds and Lake Stevens use a council RESOLUTION, Lynnwood a fee ORDINANCE, and Puyallup an EXECUTIVE ORDER of the city manager. Ask the city for the current resolution.Review timeline
Inspection process
Tips
- Check the NFPA edition, not just the IMC edition. LSMC 14.80.010 names NFPA 58 at 2020 while the IMC, IFGC and NFPA 54 are all 2021 — four real edition years in a single sentence, and the 2020 is deliberate rather than a slip, so an LPG job is reviewed against a different vintage from the rest.
- Venting and combustion air for fuel-fired appliances is handled here rather than in the plumbing code: the city expressly does not adopt the UPC Chapter 5 requirements on that subject, citing WAC 51-56-003.
Frequently asked questions
Sources & verification
Verified against official sources. Last reviewed 2026-09-16.
Codes & ordinances
Department & other records
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 Lake Stevens building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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