Located in the city of Fairfax, Virginia, this property was evaluated for historical significance prior to proposed development to establish preservation alternatives and feasibility for restoration of the building. The Powell-Ostrander house is considered to be significant due to the local role of the property in the Civil War and the association with the development of Fairfax and its founders (Criteria A), as well as an architectural example of an early house in Fairfax (Criteria C). The construction date of the property is estimated to be pre-1815, which places it as one of the earliest standing structures within the city limits. This distinction would prevent any effort to demolish the house by the developer, even if the house if under threat of demolition by neglect.