Deck permits in City of Issaquah: fees, timeline & requirements (2026)
Everything you need to know about pulling a deck permit in City of Issaquah, Washington — when one is required, what it costs, how long review takes, what documents are required, and which inspections you can expect. Cited to Community Planning & Development.
Free lookup, no account needed — your lot polygon, zoning, setbacks and overlays, cited to City of Issaquah's source.
When does a deck need a permit in City of Issaquah?
A permit is required before any repairs, additions, or modifications to a deck more than 30 inches above grade (measured to the lowest point within 6 feet of the deck). Setbacks per IMC 18.404 by zone; decks in mapped ECA areas trigger critical-area review.
In the source's own words
“Before making any repairs, additions or modifications to a deck that is more than 30 inches above grade (measured to the lowest point within 6 feet of the deck), you need a permit.”Source ↗verified 2026-09-24
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
Who can do this work in City of Issaquah?
Kolmo Construction is a licensed Washington general contractor — KOLMOL*753JS, active through April 10, 2027, bonded and insured — working throughout City of Issaquah and King County. Kolmo prepares the drawings and submittals, files the deck permit with Community Planning & Development, carries the project through review and inspections, and performs the construction. Call (206) 410-5100 for a City of Issaquah deck quote.
Notes & caveats
Issaquah has significant critical-area regulations (Issaquah Creek, East Fork Issaquah Creek, steep slopes throughout Squak Mountain / Tiger Mountain foothills). Decks in mapped ECA areas trigger critical-area review under IMC 18.10.
Deck permit fee — Washington baseline, not City of Issaquah's own schedule
Worked example for a $18,000 deck project (building permit). Your actual fee scales with project valuation.
| Building permit fee | $293.25 |
| Plan review | $190.61 |
| WA state surcharge | $6.5 |
| Estimated total | $490.36 |
Most jurisdictions handle decks as field-inspection or simplified plan review. Apply via https://mybuildingpermit.com. We have not read City of Issaquah's adopted fee schedule, so this is not City of Issaquah's fee: it walks the standard valuation table most Washington cities adopt by reference, as a rough guide. The real numbers are in City of Issaquah's fee schedule ↗. Impact/utility fees may apply separately.
How to apply yourself
- 1. Confirm your parcel's zoning & overlays. Run an address lookup for your City of Issaquah 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: Community Planning & Development ↗
- 4. Track review (typical: 14–28 days). Respond to reviewer comments promptly.
- 5. Pay issuance fees (Most jurisdictions handle decks as field-inspection or simplified plan review. Apply via https://mybuildingpermit.com.) and pick up the permit. Inspection card travels with the job.
Or have Kolmo do it
We pull deck permits in City of Issaquah every month. We prepare the drawings and submittals, file with Community Planning & Development, handle reviewer comments, and build the project.
Licensed WA general contractor KOLMOL*753JS · bonded & insured
Deck permits in City of Issaquah — FAQ
When does a deck need a permit in City of Issaquah?
A permit is required before any repairs, additions, or modifications to a deck more than 30 inches above grade (measured to the lowest point within 6 feet of the deck). Setbacks per IMC 18.404 by zone; decks in mapped ECA areas trigger critical-area review.
How much does a deck permit cost in City of Issaquah?
For a $18,000 deck project, the estimated City of Issaquah permit fee is about $490.36 — building fee $293.25 + plan review $190.61 + surcharges. Fees scale with project valuation per the city schedule.
How long does City of Issaquah take to review a deck permit?
Typical review window: 14–28 days. Over-the-counter eligible for some scopes.