Clemens provided general contracting services for the high-end architectural over-build of an 11,000 SF dining facility atop the historic Union League of Philadelphia. The new "Trumbauer's” Rooftop Restaurant features a commercial kitchen, indoor and outdoor dining, a large arched skylight, central bar, private dining room, wine storage, and new restrooms. The scope also included the extension/modernization of existing elevators & stairwells, and the replacement/relocation of hotel chillers & rooftop mechanical equipment. Clemens collaborated closely with the City of Philadelphia Historical Commission to ensure design intent and historic requirements were met, seamlessly blending modern amenities with the League's classic architectural style.