There may be some obvious reasons to promote the safekeeping of historic properties. They help to preserve public memory and history for specific areas, provide cultural resources, and represent the important aspects of the past that have significantly contributed to the development of the present. Any serious losses can be a grave detriment to the community’s heritage and collective identity. For many municipalities, older structures contribute to the character and visual aesthetic of a district or neighborhood and provide recognizable icons that draw many to the area.
According to the definitions given by the Technical Preservation Services of the National Park Service, there are four main ways to deal with historic properties. Each can affect the methodology for changes being made to a site and may be appropriate in various circumstances. These definitions will directly inform the evaluation criteria for the Waco case studies found on this website.