Due to recent interim regulations implementing state legislation (effective July 2025) and pending changes to the Design Review program and the local codes implementing State Environmental Policy Act (SEPA) requirements, SDCI's Tips, Director's Rules, and other guidance documents may not reflect the most current regulations or requirements. To ensure accuracy and applicability to specific code questions or permit applications, please contact us through our Send Us a Question website.

Tips

Tip 329, Environmentally Critical Areas Administrative Conditional Use Permit—Application Instructions and Submittal Requirements

Summary: City of Seattle regulations for Environmentally Critical Areas (ECAs) set strict platting standards (see SMC 25.09.240) on parcels containing any part of a biodiversity area or corridor (see fish and wildlife habitat conservation areas listed in 25.09.012.D), riparian corridors, priority habitat, priority area setback, wetlands, wetland buffers, and steep slope erosion hazard areas.

Date Revised: 05/29/2025

See all Tips