Michael Hanrahan specializes in numerous project types, including historic preservation and the adaptive reuse of historic structures, institutional work, and sports facilities. In over twelve years with Clarke Caton Hintz, he has been on the design teams for a number of historically and architecturally significant buildings. These include the restoration of Morven, the former governor's mansion in Princeton, the renovation of 200 Elm Drive, the former Boilerhouse for Princeton University for re-use as University office space, and the restoration of the Historic Hunterdon County Courthouse and Jail.