The building was designed by Washington architect Willis A. Ritchie in the Queen Anne style with light gray Chuckanut sandstone. The Old Capitol Building is significant statewide for its role in both county and state government and as an important anchor building to downtown Olympia. The Superintendent of Public Instruction has been a tenet of the Old Capitol Building since 1906.

PMA performed a leak investigation and general assessment of the circa 1892 Old Capitol Building and its 1905 East Annex addition.

Building Envelope Corrections:
• General exterior condition assessment of the roof systems and exterior stone.
• Identified the potential sources of water intrusion resulting in plaster damage.
• 3D laser scan and Revit model, the first such recording of a historic building for DES, creating a template for future assessment and facility maintenance projects.
• Window by window condition survey.