The building was nearly doubled in area in 1939 in a Public Works Administration-funded expansion which used matching materials.

The expansion created a monumental pedimented Classical Revival entrance with Tuscan columns on the west side of the building.

[2] The original building was designed by John James Huddart and built by contractor A.B.

Denver architects Lester L. Jones and Richard O. Parry designed the expansion.

This article about a property in Colorado on the National Register of Historic Places is a stub.