Period of Significance

Refer to Statement of Significance for the definition of significance, as it applies to historic resources.

Period of Significance is a bracket of time within a property’s existence when it reaches its apogee of importance. This period is associated with the criteria for which the property is designated or considered significant. For some properties, this period is easily identified, but for others, the period of significance is clouded by the extent of changes, additions, uses, or events that occurred at the site.

The Period of Significance is used to guide treatments and changes that are appropriate and complementary to the historic property. Those features in place during the confirmed period of significance should be protected and preserved, or may be replicated or reconstructed, if missing or badly deteriorated.

Return to the Glossary.