Beaverton, OR Landscaping Rules: Tree Removal & Heritage Trees (2026)
Tree removal permit rules in Beaverton, OR, sometimes called heritage tree, protected tree, or street tree ordinances, list which trees require a permit before you can cut them down.
Key Facts
- Mitigation trigger
- Removal over 50% of surveyed DBH
- On-site ratio
- 2:1 planting up to 75-85% removed
- Off-site ratio
- 1:1 planting ratio
- Backstop
- In-lieu fee to Tree Mitigation Fund
Summary
Removing trees from a Beaverton Significant Grove or Natural Resource Area triggers mitigation planting under Development Code § 60.60.25: up to a 2:1 on-site ratio once removal exceeds 50% of surveyed tree diameter.
Residential, Commercial, or Industrial zoning districts: For tree removal proposals which remove more than 50% and up to and including 75% of the surveyed non-exempt DBH, if all mitigation tree planting is to occur on-site, the ratio for planting shall be on a 2:1 basis.
For example, if 20 inches of DBH is the total amount of required mitigation, if all the mitigation planting occurs on the site where the removal is to occur, then only 10 inches of DBH is required to be planted.
B. Multiple Use zoning districts: For tree removal proposals which remove more than 50% and up to and including 85% of the surveyed non-exempt DBH, if all mitigation tree planting is to occur on-site, the ratio for planting shall be on a 2:1 basis.
https://online.encodeplus.com/regs/beaverton-or/doc-viewer.aspx?secid=244#secid-5 474/706 8/12/26, 3:08 PM Document Viewer | Development Code
For example, if 20 inches DBH is the total amount of required mitigation, if all the mitigation planting occurs on the site where the removal is to occur, then only 10 inches of DBH is required to be planted.
5. Significant Grove or SNRA off-site mitigation, 1:1 planting ratio.
A. Residential, Commercial, or Industrial zoning districts: For tree removal proposals which remove more than 50% and up to and including 75% of the surveyed non-exempt DBH, if mitigation tree planting is to occur off-
Full Breakdown
When a Beaverton property owner removes trees from a Significant Grove or Significant Natural Resource Area (SNRA), Development Code § 60.60.25 sets the mitigation math. No mitigation is owed if the removed trees total 50% or less of the site's surveyed tree diameter (DBH); above that, only the excess over 50% must be replanted. In residential, commercial, or industrial zones, removing more than 50% and up to 75% of DBH requires on-site mitigation planting at a 2:1 ratio, or 1:1 if planted off-site. Mitigation trees must be secured by a two-year performance bond and monitored, and any shortfall in required replanting converts to an in-lieu fee paid into the city's Tree Mitigation Fund.
Violations & Fines
Unmitigated Protected Tree removal is enforced under § 60.60.07's monetary penalties, and any shortfall in required replanting converts to an in-lieu fee deposited in the city's Tree Mitigation Fund (§ 60.60.25.7).
Frequently Asked Questions
Do I have to replant trees I remove in Beaverton?
What if I can't plant enough replacement trees?
Sources & Official References
Other rules in Beaverton
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Tree Removal & Heritage Trees in Nearby Cities
How other cities in Washington County handle tree removal & heritage trees.