5. The Octagon, 888 Main Street, Roosevelt Island
Traveling back to Roosevelt Island, we have The Octagon: a 12-story building that was part of the redevelopment of the historic Roosevelt Island hospital complex. The development is made up of a five-story octagon-shaped building constructed in 1841 designed by Alexander Jackson Davis, and two new wings that were added. Developers used 10% recycled materials and 20% local materials in the construction process, and about 50% of the construction waste was recycled. The Heating, Ventilation, and Air Conditioning (HVAC) system helps lower energy usage by 35%. Langan and Becker & Becker Associates brought the project to life. The Octagon received the largest initial award of New York State Green Building Tax credits, The Green Apple Award from the first New York City Green Building Competition, a Preservation Grant from the New York State Office for Historic Preservation, and a LEED Silver Certification in 2007.