Seattle proposes new tree planting and amenity area requirements in residential neighborhoods

The Seattle City Select Committee on the Comprehensive Plan convened on May 1, 2025, to discuss significant updates to tree planting regulations in neighborhood residential areas. The proposed changes aim to shift the focus from the size of trees at planting to the size of trees at maturity, emphasizing the importance of eventual canopy cover for urban greenery.

Key elements of the proposal include the introduction of a new amenity area requirement in residential zones, which will provide space for residents and vegetation amidst increasing density. This initiative is designed to enhance green space in the city, particularly as development intensifies. Additionally, the plan includes incentives for stacked flats, a compact form of development that preserves more land for green areas.

The committee also discussed new waivers for parking requirements, allowing reductions or waivers to protect mature trees. Importantly, the proposal does not alter existing tree protection codes or regulations concerning critical environmental areas, as these were recently updated in 2023.

Council member Rink contributed to the discussion by addressing concerns about urban sprawl, clarifying that discussions around land use and development within urban growth boundaries are ongoing and complex. Rink emphasized the need to protect green lands and forests that are currently at risk of being cut down.

The committee plans to transmit the permanent legislation related to these updates in the coming weeks, indicating a commitment to enhancing Seattle's urban forestry and green spaces while accommodating growth.