Final Environmental Impact Statement (EIS) on ADUs in Seattle

This examines potential environmental impacts of proposed changes to the City’s Land Use Code related to accessory dwelling units (ADUs)* in single-family zones. The Final EIS includes a Preferred Alternative for Land Use Code changes that address regulations and policies frequently cited as barriers to the creation of ADUs.

Publishing this Final EIS completes the environmental review process for this proposal. In 2019, after considering the EIS alternatives and holding a public hearing, the City Council will consider whether to adopt changes to the Land Use Code related to ADUs. For more information, visit our project website or email ADUEIS@seattle.gov. Website: seattle.gov/council/ADU-EIS