Mackinac Island courthouse

Mackinac Island, MI

Original Construction
1839
Completion Date
2002

Built in 1839, the historic courthouse is one of the island’s oldest buildings and a prominent landmark within the Market Street Historic District. In 1999, SmithGroup, the predecessor to HBDS, conducted a preliminary assessment to evaluate the building’s existing conditions, historic character, accessibility, and code compliance, exploring options for reestablishing the vacant second-floor courtroom while maintaining police department operations. The subsequent restoration and renovation revitalized the courthouse’s civic functions while preserving its historic architectural character.


SmithGroup led the restoration and renovation, retaining the police department on the first floor while introducing two interview rooms, a lieutenant’s office, and an upgraded detention area. The second-floor courtroom was restored to its 1880s appearance for seasonal hearings and pleadings, and the historic front lobby was reestablished as the primary entrance for both police and court functions. Additional improvements included restoration of the cupola, window restoration and replacement, historic paint research, new exterior lighting, and comprehensive accessibility upgrades, including an elevator and barrier-free restrooms, bringing the facility into ADA compliance.