The Eagle House contributes to the Eureka Old Town Historic District which was listed on the National Register of Historic Places (NRHP) in 1991.

The NRHP nomination describes the Eagle House as a Stick-Style Victorian commercial building. An interpretive marker on the building describes the architectural style as Eastlake/Queen Anne. This discrepancy is not unusual, especially in the description of Victorian buildings and Classical Revival buildings. Often these buildings have elements derived from several styles.

The interpretive marker notes that the Eagle House served passengers traveling by steamers docking at nearby wharves.

The NRHP nomination notes that the fourth story was added as an unsympathetic addition which is not Victorian in design, but modern with shingled siding and aluminum sash windows. Despite this addition, the building contributes to the historic district.