The Gus J. Solomon United States Courthouse is a federal courthouse located in downtown Portland, Oregon, United States. Completed in 1933, it previously housed the United States District Court for the District of Oregon until the Mark O. Hatfield United States Courthouse opened in 1997. The Renaissance Revival courthouse currently is used by commercial tenants and formerly housed a U.S. Postal Service branch. In 1979, the building was added to the National Register of Historic Places as U.S. Courthouse.ConstructionThe federal courthouse was designed by Portland architect Morris H. Whitehouse between 1929 and 1931, and built by Murch Construction. Construction on the seven-story structure began in 1932, with the laying of the cornerstone occurring in August. The $1.5 million steel-framed with reinforced concrete structure was finished in just over one year. Originally called the Federal Courthouse, it was completed in September 1933. The Solomon Courthouse contains eight courtrooms in its 117000sqft of space.Architecturally, the Solomon Courthouse is Renaissance Revival on the exterior and Art Deco on the interior. On the exterior are Doric pilasters that adorn the symmetrical façade, along with classical triglyphs and metopes that alternate in the sandstone frieze. Cornices top the frieze with an egg-and-dart pattern, while a distinct Art Deco floral pattern surrounds the exterior. With an open courtyard in the middle, only the first floor covers the entire block. The building is topped with a flat roof that contains a parapet wall and with decorative gutters.