Each Post WWII subdivision is evaluated for historic and architectural significance, and integrity. The significance of a subdivision is determined by its relation to historic themes, such as community planning and development, federal housing policy, or association with prominent builders and developers. The evaluation of a neighborhood's integrity is based on several factors, including the proportion of individual properties that possess a high degree of integrity, the presence of a subdivision's key non-residential elements [streets, vegetation, irrigation system, etc.], and the absence of any significant non-conforming encroachments in the residential areas.

SHPO Carport Integrity Policy [pdf]