Most City offices closed Wednesday, June 19, to observe Juneteenth

The City of Portland recognizes Juneteenth as a formal day of remembrance to honor Black American history and the end of slavery in the United States. Learn about Juneteenth.

Making Changes to a Historic Resource

6-story red brick historic building with new windows and doors for ground floor retail.
Certain development proposals affecting historic resources are subject to land use review and approval prior to construction. These mandatory regulations are codified in the Portland Zoning Code and are administered by the Bureau of Development Services.

Historic resources are subject to land use regulations provided by Portland Zoning Code Chapter 33.445, Historic Resource Overlay Zone. The regulations apply to certain alteration, addition, new construction, demolition, and relocation proposals affecting historic resources.

Historic, Conservation, and National Register Landmarks; Historic, Conservation, and National Register Districts; and Significant Resources are subject to the provisions of the Historic Resource Overlay Zone.

To learn more about the land use regulations that apply to historic resources:

  1. Review Portland Zoning Code Chapter 33.445.
  2. Visit the Bureau of Development Services’ Historic Resource Reviews page.
  3. Schedule a 15-minute appointment with a Bureau of Development Services planner.