Address: New York, New York
Role: Preservation Architect
Architect: Murphy/Jahn
Year Built: 1987
Completed: 2011
Project Status: Completed

Building restoration of granite panels and aluminum window frames of the third tallest mixed-use tower in NYC

CitySpire, designed by Helmut Jahn, was the second tallest concrete tower in the world when it was built in 1987. As the tallest mixed-use tower in New York City, the LL11 repair strategy developed by Henson required careful planning and execution. The scope of work on this 75-story skyscraper included the repair of the curtain wall, stone panels, windows, and structural concrete.


November 4, 2019


Technical Assessment