Plumbing permits in City of Kirkland: fees, timeline & requirements (2026)

Everything you need to know about pulling a plumbing permit in City of Kirkland, Washington — when one is required, what it costs, how long review takes, what documents are required, and which inspections you can expect. Cited to Apply via MyBuildingPermit.com..

Permit required?
Yes — see threshold below
Permit fee
Plumbing permit fees by fixture count. Standard residential ~$80-$250. Apply via https://mybuildingpermit.com.
Review timeline

When does a plumbing need a permit in City of Kirkland?

Plumbing work (water/waste/vent piping, backflow devices, water-heater replacement, hose bibs) requires a permit. In Kirkland, plumbing permits are regulated by Public Health – Seattle & King County, not the City.

From City of Kirkland's own page

Plumbing permits regulated by Public Health – Seattle & King County.
Source ↗verified 2026-06-26

Required submittals

  • fixture count + DFU calc for repipes
  • water heater specs
  • sewer line plan if site work involved

Inspection sequence

  1. rough-in / pressure test
  2. final

Contractor specialties needed

plumbing

Notes & caveats

Water heater: T&P relief, expansion tank required if pressure >80psi or check valve installed. Sewer line: cleanouts at every 100ft + change of direction. Backwater valve required in flood zones.

Plumbing permit fee estimate in City of Kirkland

Worked example for a $6,000 plumbing project (plumbing permit). Your actual fee scales with project valuation.

Building permit fee$150
Plan review$97.5
WA state surcharge$4.5
Estimated total$252

Multi-fixture (bathroom remodel, repipe section): ~$150 Computed from the City of Kirkland fee bracket schedule · source ↗. Impact/utility fees may apply separately.

How to apply

  1. 1. Confirm your parcel's zoning & overlays. Run an address lookup for your City of Kirkland plumbing — we'll pull your specific lot polygon, zoning, setbacks, and any shoreline/ECA/historic overlays.
  2. 2. Assemble submittals (3).
  3. 3. Submit through the city portal: Apply via MyBuildingPermit.com.
  4. 4. Track review (typical: ). Respond to reviewer comments promptly.
  5. 5. Pay issuance fees (Plumbing permit fees by fixture count. Standard residential ~$80-$250. Apply via https://mybuildingpermit.com.) and pick up the permit. Inspection card travels with the job.

Plumbing permits in City of Kirkland — FAQ

When does a plumbing need a permit in City of Kirkland?

Plumbing work (water/waste/vent piping, backflow devices, water-heater replacement, hose bibs) requires a permit. In Kirkland, plumbing permits are regulated by Public Health – Seattle & King County, not the City.

How much does a plumbing permit cost in City of Kirkland?

For a $6,000 plumbing project, the estimated City of Kirkland permit fee is about $252 — building fee $150 + plan review $97.5 + surcharges. Fees scale with project valuation per the city schedule.

City of Kirkland resourcesPermit portal ↗Fee schedule ↗