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Definition

"Integrity is the ability of a property to convey its significance."

VIII. How to Evaluate the Integrity of a Property, How to Apply the National Register Criteria for Evaluation (NR Bulletin #15), National Register of Historic Places, National Park Service, 1997

Standards

VIII. How to Evaluate the Integrity of a Property, How to Apply the National Register Criteria for Evaluation (NR Bulletin #15), National Register of Historic Places, National Park Service, 1997, pp. 44- 49.

Seven Aspects of Integrity

  1. Location: Location is the place where the historic property was constructed or the place where the historic event occurred.
  2. Design: Design is the combination of elements that create the form, plan, space, structure, and style of a property.
  3. Setting: Setting is the physical environment of a historic property.
  4. Materials: Materials are the physical elements that were combined or deposited during a particular period of time and in a particular pattern or configuration to form a historic property.
  5. Workmanship: Workmanship is the physical evidence of the crafts of a particular culture or people during any given period in history or prehistory.
  6. Feeling: Feeling is a property's expression of the aesthetic or historic sense of a particular period of time.
  7. Association: Association is the direct link between an important historic event or person and a historic property.

Assessing Integrity in Properties

Only after significance is fully established can you proceed to the issue of integrity. The steps in assessing integrity are:

  1. Define the essential physical features that must be present for a property to represent its significance.
  2. Determine whether the essential physical features are visible enough to convey their significance.
  3. Determine whether the property needs to be compared with similar properties. And,
  4. Determine, based on the significance and essential physical features, which aspects of integrity are particularly vital to the property being nominated and if they are present.

Ultimately, the question of integrity is answered by whether or not the property retains the identity for which it is significant.

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