SGI created the structural design for the new Lexington House Hotel, located at 517-521  Lexington Avenue in New York City. The 25-story Hotel is positioned amidst numerous other  prestigious hotels on the east side of Manhattan’s midtown district. The structural material of  choice was reinforced concrete. Because of the building’s double-level Basement, situated  adjacent to existing Subway tunnels and facilities, extensive coordination with the  Metropolitan Transit Authority was required.