Olsavsky Jaminet Architects transformed the Youngstown City Hall Annex, originally a 1933 U.S. Post Office and Courthouse, into a modern municipal court while preserving its historic grandeur. After a comprehensive assessment, the team, led by Raymond Jaminet, renovated the building to house court facilities, offices, and a detention area. Historical authenticity was maintained through meticulous research, using original materials and replicating fixtures. The basement now includes a detention facility, the first floor houses court offices, and the third floor features restored courtrooms with preserved walnut wainscoting and marble corridors. Modern systems and a new elevator enhance functionality, while the exterior was restored. Completed in April 2018, this civic project revitalized a community cornerstone.

Specialized design features include large and small exhibit spaces, interactive display space, exhibit lighting and other controls to project the historical contents housed within. Integrated into the facility design are specialized archival storage, data communication and security system.

The second floor houses all the archival space. The project received awards and recognition from the Ohio Chapter of American Institute of Architects and the Eastern Ohio Chapter of American Institute of Architects and featured in Progressive Architecture magazine. In 2008, work included re-roofing and repairs to the exterior building envelope
In 2011 the Museum received grant funding to upgrade the entrance to be compliant with current ADA standards.