EFFECTIVE MAY 30, 2022 15 chapter 1 Project Considerations Preservation Considerations This flowchart provides the appropriate order for consideration of treatment approaches. Since it is important to maintain as much historic integrity as possible, preserving and maintaining a feature is the priority. If preservation is not possible, it is better to repair a feature rather than replace it so as to maintain a higher degree of integrity for the historic property. Exterior alterations should not impair the historic integrity of buildings, site features, or the historic districts.
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