Historic Preservation in Hillsboro, OR (2026)
1 verified historic preservation rules for Hillsboro, Oregon, sourced directly from the municipal code and official government pages.
Verified from official government sources
Historic-Cultural Monuments
Hillsboro's Cultural Resource Overlay, Community Development Code § 12.27.320, prohibits altering, relocating or demolishing any property listed on the city's Cultural Resource Inventory without following Subchapter 12.27's approval process. Designation attaches to specific structures or features named in a City Council ordinance, requires the site be at least 50 years old or exceptionally significant, and property owners may refuse a City-initiated nomination before Council acts.
Hillsboro Cultural Resource Overlay Rules
Significant RestrictionsHillsboro Community Development Code § 12.27.320(A), (C), (F)
A.Application. The Cultural Resource Overlay (CRO) applies to properties designated by City Council Resolution or Ordinance as Cultural Resources and regulated as Goal 5 resources. The list of designated Cultural Resources is referred to as the Cultural Resource Inventory Map. ... C.Cultural Resource Designation Boundary. ... the provisions of this section shall be applied only to the structure...
Looking for Washington County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Hillsboro city rules.
Historic Preservation in Washington County →