Window replacement permits in City of Sammamish: fees, timeline & requirements (2026)

Everything you need to know about pulling a window replacement permit in City of Sammamish, 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?
Often no
Permit fee
Like-for-like usually no permit fee. Structural changes scale with valuation. Apply via https://mybuildingpermit.com.
Review timeline

When does a window replacement need a permit in City of Sammamish?

2021 IRC R105.2(1)(g) exempts like-for-like window replacement (same rough opening, same R-value class). Permit required for: new openings, enlarged/reduced openings, egress-affecting changes (R310), and any change that crosses a structural element.

Required submittals

  • if new/enlarged opening: header schedule, structural detail, WSEC NFRC sticker for U-factor

Inspection sequence

  1. rough-opening inspection (if structural)
  2. final

Contractor specialties needed

general

Notes & caveats

WSEC R402.4: replacement windows must meet U-factor ≤0.30 (climate zone 4C/5B applicable to most WA). Egress sleeping rooms must retain compliant opening (R310).

Window replacement permit fee estimate in City of Sammamish

Worked example for a $8,000 window replacement project (building permit). Your actual fee scales with project valuation.

Building permit fee$153.25
Plan review$99.61
WA state surcharge$4.5
Estimated total$257.36

Like-for-like usually no permit fee. Structural changes scale with valuation. Apply via https://mybuildingpermit.com. Computed from the City of Sammamish 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 Sammamish window replacement — we'll pull your specific lot polygon, zoning, setbacks, and any shoreline/ECA/historic overlays.
  2. 2. Assemble submittals (1).
  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 (Like-for-like usually no permit fee. Structural changes scale with valuation. Apply via https://mybuildingpermit.com.) and pick up the permit. Inspection card travels with the job.

Window replacement permits in City of Sammamish — FAQ

When does a window replacement need a permit in City of Sammamish?

2021 IRC R105.2(1)(g) exempts like-for-like window replacement (same rough opening, same R-value class). Permit required for: new openings, enlarged/reduced openings, egress-affecting changes (R310), and any change that crosses a structural element.

How much does a window replacement permit cost in City of Sammamish?

For a $8,000 window replacement project, the estimated City of Sammamish permit fee is about $257.36 — building fee $153.25 + plan review $99.61 + surcharges. Fees scale with project valuation per the city schedule.

City of Sammamish resourcesPermit portal ↗Fee schedule ↗