The Department of Archaeology and Historic Preservation (DAHP) is Washington State's primary agency with knowledge and expertise in historic preservation. We advocate for the preservation of Washington's irreplaceable cultural resources (historic and archaeological) which include significant buildings, structures, sites, objects, and districts. Through education and information, we provide leadership for the protection of our shared heritage.
Info and help on preserving buildings
Info for professionals and for people just interested in Washington’s ancient peoples
Human Remains & Cemeteries
Info for professionals and for people just interested in Washington’s deceased citizens
State Historic Preservation Office Compliance
Guidance on preservation laws and the review process