Kirkland enforces King County Noxious Weed Control Board regulations under RCW 17.10; property owners must control Class A and designated Class B weeds including knotweed, tansy ragwort, and poison hemlock.
Washington state law RCW 17.10 establishes noxious weed control through county weed boards. Kirkland property owners are subject to the King County Noxious Weed Control Board, which classifies weeds into Class A (eradication required statewide), Class B designate (control required in specific areas of the county), and Class C (control encouraged). Property owners must control Class A weeds such as giant hogweed, tansy ragwort (in portions of the county), and knotweed infestations, as well as any Class B designates. Common regulated species include Japanese knotweed, giant hogweed, policemans helmet, tansy ragwort, poison hemlock, garlic mustard, and Scotch broom seedlings. Kirkland incorporates these requirements through KMC nuisance provisions. King County weed specialists provide free site visits and identification. Unabated infestations can trigger county enforcement and property liens if city or county crews perform mandatory abatement.
County weed board abatement orders under RCW 17.10 with civil penalties; unpaid abatement costs become property liens.
Kirkland, WA
Leaf blowers and power equipment are restricted to 8 AM to 8 PM weekdays and 9 AM to 6 PM on weekends and holidays under KMC 11.84A. Kirkland has not adopted...
Kirkland, WA
Kirkland sits about 20 miles north of Sea-Tac and is lightly affected by commercial flights. Kenmore Air seaplanes and Renton Municipal general aviation caus...
Kirkland, WA
Kirkland does not impose a citywide overnight parking ban, but enforces the 72-hour rule, signed residential permit zones, and no-parking signs at parks, tra...
Kirkland, WA
Kirkland driveways must remain paved, accessible, and used for vehicle parking per KMC Title 115 zoning code, which limits front-yard paving and requires app...
Kirkland, WA
EV charging in Kirkland follows the Washington State Energy Code, which requires EV-ready capacity in new multifamily and commercial parking and protects pub...
Kirkland, WA
Under KZC 115.40, Kirkland fences may be up to 6 feet except within 15 feet of a street curb. Properties on a neighborhood access or collector street are cap...
Side-by-side rule comparisons with other cities in King County.
See how other cities in King County handle weed ordinances.
See how Kirkland's weed ordinances rules stack up against other locations.
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