Deck permits in Kirkland: fees, timeline & requirements (2026)

When does a deck need a permit in Kirkland?

The City's "Deck Installation or Repair" page, citing KMC 21.06.215: a building permit is NOT required for a deck that is (a) not more than 30 inches above grade, AND (b) not over any basement or story below, AND (c) not part of an accessible route. All three must hold — a 24-inch deck over a basement, or one forming an accessible route to an entrance, still requires a permit. The code's own list, KMC 21.06.215(1)(F), exempts decks "constructed under the provisions of the IRC, which are not more than thirty inches above grade and not over any basement or story below"; the accessible-route condition is the City page's. Decking-board replacement that does not change/add structural members or remove guardrails is separately exempt: KMC 21.06.215(1)(U), "Decking replacement on decks without changing or adding any other structural members or removing guardrails." The guard is not covered by this exemption: Kirkland Development Services confirmed at the counter on 2026-08-06 that a deck may be exempt while its railing still requires a permit, so the deck and the guard are evaluated separately. None of this is exempt in a flood hazard area, a critical area or its buffer, or where the International Wildland-Urban Interface Code applies. KMC 21.06.215: "Permit exemptions shall not apply to areas of flood hazard or city land use critical areas and their required buffers, or locations subject to the construction requirements of the International Wildland-Urban Interface Code."

How long a deck permit actually takes in Kirkland

35 permits with plan review issued in the last 12 months: half were issued within 47 days of application and 80% within 93.

Days from application to issue, measured by Kolmo from City of Kirkland single-family building permits (type BSF) on MyBuildingPermit.com.

In the source's own words

“A building permit is not required for a deck that is not more than 30" above grade and not over any basement or story below and which is not part of an accessible route.”

Source ↗verified 2026-08-05

Required submittals

• Site plan showing the deck in relation to other structures and property lines, with lot coverage calculations and required setbacks shown
• Site plan identification of any slope, wetland, or other environmentally sensitive area, and definition of the extent of work
• Elevations showing the deck including height, related stairs, access, guards and handrails
• Floor plans showing the deck and the rooms, windows and doors adjacent to it, indicating whether the deck is drip-through or waterproof
• Notes and details showing compliance with the deck code requirements in Step 4 of the City handout
• Structural notes and framing plans with dimensions, joist layout, beam size and location, post size and location, footing size, guard post spacing, connections, fasteners and bracing — stating clearly whether the design is prescriptive per Construction Tip Sheet 5 or engineered
• Structural calculations (required only where the design is engineered rather than prescriptive per Construction Tip Sheet 5)
• Building Permit Checklist — remaining application requirements per the City checklist

Inspection sequence

1. Footing
2. Framing
3. Final

Contractor specialties needed

General contractor

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 Kirkland

Worked example for an $18,000 deck project (building permit). Your actual fee scales with project valuation.

Kirkland prices a deck's building permit on the value of the work: $113 for the first $2,000 plus $23.62 for each $1,000 more up to $25,000, and $639 for the first $25,000 plus $17.46 for each $1,000 more up to $50,000. Plan review is 65% of that fee, plus the $6.50 state building code fee. A 3.5% technology fee is added to the City's permit and plan review fees (Kirkland Building Services Fees, 2026). Apply via mybuildingpermit.com. Computed from Kirkland's adopted fee schedule · source ↗. Land use, fire and engineering review, intake, impact and utility fees, where they apply, are charged separately.