Landscaping Rules in Seattle, WA (2026)
2 verified landscaping rules for Seattle, Washington, sourced directly from the municipal code and official government pages.
Verified from official government sources
Tree Removal & Heritage Trees
Seattle's Tree Protection Code (SMC 25.11, effective July 30, 2023) classifies trees by tier. Tier 2 trees generally cannot be removed except for hazard. Tree removal typically requires SDCI approval. All tree work must be done by a Registered Tree Service Provider (RTSP) since August 2024. Violations: up to 3x tree appraised value.
Seattle Tree Protection & Removal
Heavy RestrictionsWeed Ordinances
Seattle and King County Noxious Weed Board require control of listed invasive species. English ivy, Himalayan blackberry, and knotweed are top priorities. Salmon-safe landscaping practices encouraged throughout the city.
Seattle Weed Ordinances
Some RestrictionsLooking for King County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Seattle city rules.
Landscaping Rules in King County →