Beaverton, OR Landscaping Rules: Grass Height Limits (2026)

Under Beaverton Code (BC) Chapter 5 (Public Nuisances), the city defines noxious vegetation to include grass exceeding 10 inches in height; weeds more than 10 inches tall or going to seed; vegetation that is a fire hazard because it is dry or dead; and vegetation that impairs sight lines at intersections or along public ways. Agricultural crops are exempt unless they constitute a fire, traffic, or health hazard. Property owners are responsible for keeping both the parcel and the abutting public right-of-way (planting strip) clear of noxious vegetation. Enforcement follows the standard Beaverton public-nuisance abatement procedure under BC Chapter 5: written notice to the property owner specifying the violation and a cure deadline (typically 10 days), opportunity to abate voluntarily, and city abatement by contract mowing if not corrected. The city's abatement cost (mowing, administrative fees) is billed to the property owner, and unpaid charges become a lien on the property under the public-nuisance article. Repeat offenders may face additional civil penalties.