Tree Protection in Hillsboro, OR (2026)
2 verified tree protection rules for Hillsboro, Oregon, sourced directly from the municipal code and official government pages.
Verified from official government sources
Heritage & Protected Trees
Hillsboro's code doesn't use the term 'heritage tree': it protects large 'specimen' trees by species and diameter, like Douglas firs over 24 inches or oaks and maples over 12 inches, from removal during development review.
Hillsboro Specimen Tree Protection Rules
Heavy RestrictionsHillsboro Community Development Code § 12.50.230.D, D.1
D.Standards for Specimen Tree Preservation. In addition to the standards in subsection C above, the standards in subsection D apply to the Specimen Trees described in Table 12.50.230-1. ... 1.No specimen tree shall be removed or damaged during development construction unless 1 or more of the following criteria are met:a.A Certified Arborist determines that the tree: ... iii.Was diseased, weaken...
Parkway Planting
Planting, removing, or replacing a tree in the Hillsboro right-of-way next to your property requires a City permit first, and a removed tree must be replaced to the size shown in the City's Design and Construction Standards.
Hillsboro Street Tree Planting Permit
Some RestrictionsHillsboro Municipal Code § 9.18.090; § 9.18.080(B)(5)
Any person, other than authorized employees, agents or contractors of the City, must obtain a permit approved by the City Manager's office or designee prior to planting, removing or major pruning any tree located in the public right-of-way. The permit application shall be made before the intended activity. ... Replacing a removed tree(s) per the spread dimension shown in the Hillsboro Design an...
Looking for Washington County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Hillsboro city rules.
Tree Protection in Washington County →