Side sewer permits in Lynnwood: fees, timeline & requirements (2026)
Everything you need to know about pulling a side sewer permit in Lynnwood, Washington — when one is required, what it costs, how long review takes, what documents are required, and which inspections you can expect. Cited to Lynnwood Development & Business Services.
Free lookup, no account needed — your lot lines and the house, with a plan to draw the side sewer, cited to Lynnwood's source.
When does side sewer work need a permit in Lynnwood?
The side-sewer permit comes from the utility that owns the sewer main (the city, a sewer or water district, or a regional utility), under that utility's own code. Which utility is a per-property fact: a lot can sit inside a city for permitting and outside its sewer district, so confirm the owner of the main before applying. The utility's code, not a statewide rule, decides which work needs the permit: a new connection does, and many utility codes also require it for any repair, however short, and for capping or disconnecting a side sewer, so check that code before digging. WAC 51-56, the state plumbing code, governs how the building sewer is laid.
From Lynnwood's own code
“An owner may request that a side sewer that is no longer needed to serve a building be capped. The owner shall apply for a sewer capping permit. The sewer capping permit application shall be submitted to the department of public works for processing as required by LMC 2.44.040. Sewer capping fees shall be as shown in Chapter 3.104 LMC. (Ord. 2656 §§ 1, 2, 2006; Ord. 2076 § 14, 1996)”Source ↗verified 2026-05-02
Required submittals
- Site plan with sewer line route
- Depth + slope detail
- Cleanout locations
- Utility locate ticket
Inspection sequence
- Pre-cover (open trench)
- Air / water test
- Final
Contractor specialties needed
Side sewer contractor
Who can do this work in Lynnwood?
Kolmo Construction is a licensed Washington general contractor — KOLMOL*753JS, active through April 10, 2027, bonded and insured — working throughout Lynnwood and Snohomish County. Kolmo prepares the drawings and submittals, files the side sewer permit with Lynnwood Development & Business Services, carries the project through review and inspections, and performs the construction. Call (206) 410-5100 for a Lynnwood side sewer quote.
Notes & caveats
Issuing body is the sanitary sewer utility, NOT the building department, and inspection is the utility's too. SOME utilities additionally require the contractor to hold a side-sewer card or registration before they will issue; it is not universal, so check the serving utility's own rules rather than assuming either way.
How to apply yourself
- 1. Draw the side sewer. Run an address lookup for your side sewer work in Lynnwood — we'll pull your lot lines and the house, and you can draw the side sewer's run to the street on a plan of the lot.
- 2. Assemble submittals: the 4 documents under Required submittals above.
- 3. Submit through the city portal: Lynnwood Development & Business Services ↗
- 4. Track review. Respond to reviewer comments promptly.
- 5. Pay issuance fees (the sewer utility that serves the lot sets them) and pick up the permit. Inspection card travels with the job.
Or have Kolmo do it
Kolmo prepares the drawings and submittals, files with Lynnwood Development & Business Services, handles reviewer comments, and builds the project.
Licensed WA general contractor KOLMOL*753JS · bonded & insured
Side sewer permits in Lynnwood — FAQ
When does side sewer work need a permit in Lynnwood?
The side-sewer permit comes from the utility that owns the sewer main (the city, a sewer or water district, or a regional utility), under that utility's own code. Which utility is a per-property fact: a lot can sit inside a city for permitting and outside its sewer district, so confirm the owner of the main before applying. The utility's code, not a statewide rule, decides which work needs the permit: a new connection does, and many utility codes also require it for any repair, however short, and for capping or disconnecting a side sewer, so check that code before digging. WAC 51-56, the state plumbing code, governs how the building sewer is laid.
How much does a side sewer permit cost in Lynnwood?
Where the City of Lynnwood serves the lot, its side sewer permit is $997 for a new house, plat or short plat, per side sewer, and a repair or replacement is $475 over 25 feet or $247 for 25 feet or less; capping a sewer is $123, with a 2.5% technology fee added (LMC 3.104). King County's sewer service area map shows a small part of Lynnwood served by Alderwood Water & Wastewater District instead; there the side sewer permit and its fees come from the district, under its own rules and fee schedule, so confirm the lot's utility before applying. District: Alderwood Water & Wastewater District (https://awwd.com/).