HHA was established in 1973 in response to two major events:
- The devastating effects to the Capital Region following the unprecedented flooding from Hurricane Agnes; and
- The demolition of Harrisburg’s spectacular State Theatre.
The aftermath of these events revealed the lack of knowledge and appreciation of the cultural, economic, and historical importance of local communities and landmarks, prompting the formation of HHA to serve as the voice of historic preservation moving forward. More than 40 years later, HHA continues to serve as the voice of historic preservation, contributing to the vitality of the Capital Region.