We’ve created a new tree information tool that uses a simple, standard table to show whether a project meets Seattle’s tree requirements. The tool includes easy-to-use worksheets that applicants will add to their plan sets.
This tool is designed to:
- Help applicants understand what tree information they will need to include in their plan sets.
- Ensure the information is complete and accurate.
- Help our reviewers check code compliance more quickly.
- Improve how we track and report tree data.
The tree information tool will be available on our Trees & Codes webpage beginning November 2, 2026.
If you’re applying for construction (CN), grading (GR), demolition (DM), or phased (PH) permits, you’ll need to use this new tool for any plans submitted on or after January 4, 2027. We’ll share more information and offer training opportunities throughout the rest of 2026.
Please contact us at sdci-trees@seattle.gov if you have questions.