It was designed by Yakima architect John W. Maloney in an adapted Classical Revival style for the federal Indian Bureau as the agency's point of liaison with the Yakama Nation.

The building features a stringcourse where the original roof rested at the top of the first floor.

The corners are marked by brick buttresses extending full height, with tiled skirt roof elements in between.

The entry is marked by a small Ionic portico at the top of a flight of stairs.

Windows are casement units dividing in the middle on the front and sides, with single swinging sashes to the rear.