Deck permits in Sammamish: fees, timeline & requirements (2026)
Everything you need to know about pulling a deck permit in 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 Sammamish Community Development.
Free lookup, no account needed — your lot polygon, zoning, setbacks and overlays, cited to Sammamish's source.
When does a deck need a permit in Sammamish?
Plans are required for new or enlarged decks. A deck is exempt only if it is ≤200 sq ft, ≤30 inches above grade at any point, not attached to a dwelling, and does not serve a required exit door (adopted 2021 WA IRC R105.2(10)). Deck repair that does not expand or change the footprint needs no site plan.
How long a deck permit actually takes in Sammamish
30 permits issued in the last 12 months: half were issued within 81 days of application and 80% within 136 (over-the-counter and plan-reviewed together; the City's records do not separate them).
Days from application to issue, measured by Kolmo from City of Sammamish residential building permits ("BLDG RESIDENTIAL" types) on MyBuildingPermit.com.
In the source's own words
“Plans are required for new or enlarged decks. Deck repair that does not expand or change the deck footprint does not need a site plan.”Source ↗verified 2026-05-29
Required submittals
- Site plan with setbacks
- Framing plan w/ ledger detail
- Footing detail
- Guard/handrail detail
Inspection sequence
- Footing
- Framing
- Final
Contractor specialties needed
General contractor
Who can do this work in Sammamish?
Kolmo Construction is a licensed Washington general contractor — KOLMOL*753JS, active through April 10, 2027, bonded and insured — working throughout Sammamish and King County. Kolmo prepares the drawings and submittals, files the deck permit with Sammamish Community Development, carries the project through review and inspections, and performs the construction. Call (206) 410-5100 for a Sammamish deck quote.
Notes & caveats
Ledger connection details per IRC R507. Guards required for walking surfaces ≥30in above grade (R312). Lateral load connection required for attached decks (R507.9.2).
Deck permit fee estimate in Sammamish
Worked example for an $18,000 deck project (building permit). Your actual fee scales with project valuation.
| Building permit fee | $566.21 |
| Plan review | $368.04 |
| Technology surcharge | $140.14 |
| WA state surcharge | $6.50 |
| Estimated total | $1,080.89 |
Sammamish prices a deck's building permit on the value of the work: $142.05 up to $500, $236.77 for the first $2,000 plus $20.59 for each $1,000 more up to $25,000, and $710.28 for the first $25,000 plus $11.37 for each $1,000 more up to $50,000, with plan review at 65% of the permit fee. The City adds a 15% technology fee to each fee (2026 Fee Schedule). Apply via mybuildingpermit.com. Computed from Sammamish's adopted fee schedule · source ↗. Land use, fire and engineering review, intake, impact and utility fees, where they apply, are charged separately.
How to apply yourself
- 1. Confirm your parcel's zoning & overlays. Run an address lookup for your Sammamish deck — we'll pull your specific lot polygon, zoning, setbacks, and any shoreline/ECA/historic overlays.
- 2. Assemble submittals (4).
- 3. Submit through the city portal: Sammamish Community Development ↗
- 4. Track review. Respond to reviewer comments promptly.
- 5. Pay issuance fees (about $1,081 for an $18,000 project) and pick up the permit. Inspection card travels with the job.
Or have Kolmo do it
Kolmo prepares the drawings and submittals, files with Sammamish Community Development, handles reviewer comments, and builds the project.
Licensed WA general contractor KOLMOL*753JS · bonded & insured
Deck permits in Sammamish — FAQ
When does a deck need a permit in Sammamish?
Plans are required for new or enlarged decks. A deck is exempt only if it is ≤200 sq ft, ≤30 inches above grade at any point, not attached to a dwelling, and does not serve a required exit door (adopted 2021 WA IRC R105.2(10)). Deck repair that does not expand or change the footprint needs no site plan.
How much does a deck permit cost in Sammamish?
For a $18,000 deck project, the estimated Sammamish permit fee is about $1,080.89 (building fee $566.21 + plan review $368.04 + surcharges) from Sammamish's adopted fee schedule. Land use, fire and engineering review, intake, impact and utility fees, where they apply, are charged separately.
How long does it actually take to get a deck permit in Sammamish?
30 permits issued in the last 12 months: half were issued within 81 days of application and 80% within 136 (over-the-counter and plan-reviewed together; the City's records do not separate them). Measured by Kolmo from City of Sammamish residential building permits ("BLDG RESIDENTIAL" types) on MyBuildingPermit.com.