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

Everything you need to know about pulling a plumbing permit in City of Federal Way, 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.
Review timeline

When does a plumbing need a permit in City of Federal Way?

Plumbing work requires a permit except minor repairs — stopping leaks in drain/water/soil/waste/vent pipe and clearing stoppages or repairing leaks in pipes, valves, or fixtures are exempt. Federal Way adopts UPC 2021.

From City of Federal Way's own page

The stopping of leaks in drains, water, soil, waste, or vent pipe.
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 Federal Way

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

Plumbing permit fees by fixture count. Standard residential ~$80-$250. Computed from the City of Federal Way 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 Federal Way 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.) and pick up the permit. Inspection card travels with the job.

Plumbing permits in City of Federal Way — FAQ

When does a plumbing need a permit in City of Federal Way?

Plumbing work requires a permit except minor repairs — stopping leaks in drain/water/soil/waste/vent pipe and clearing stoppages or repairing leaks in pipes, valves, or fixtures are exempt. Federal Way adopts UPC 2021.

How much does a plumbing permit cost in City of Federal Way?

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

City of Federal Way resourcesPermit portal ↗Fee schedule ↗