New renderings released for The Alloy Block at 80 and 100 Flatbush Avenue in downtown Brooklyn



A new series of street-level and aerial renderings has been revealed for The Alloy Block, a two-tower mixed-use development designed and developed by Alloy Development and located at 80 Flatbush Avenue and 100 Flatbush Avenue on the Central Border -City of Brooklyn and Boerum. Hill. The renderings show the 482-foot-tall 100 Flatbush Avenue, a 44-story building under construction in the first phase at the corner of Flatbush Avenue and State Street, which will be the city’s first all-electric tower.

The design consists of a triangular superstructure that will produce 440 rental apartments and 30,000 square feet of ground floor retail with 350 feet of frontage facing Flatbush Avenue. Phase two will include 80 Flatbush Avenue, an 840-foot high residential, office and retail tower. The project is being developed in conjunction with the New York City Educational Construction Fund and will feature New York’s first two passive house schools, the Khalil Gibran International Academy (KGIA) high school and a 500-seat elementary school. Public schools will meet the highest standards for energy efficiency and indoor air quality.

A reflective glass curtain wall and tight assembly of mullions will surround the exterior of 100 Flatbush Avenue and culminate with a flat roof parapet. A series of very shallow recesses on the southwest side break up the bulk of the building, while the northeast elevation is flat. The most spectacular prospect to view the skyscraper is to look north along Flatbush Avenue.

The alloy block. Courtesy of Alloy

The alloy block. Courtesy of Alloy

The alloy block will be made up of five buildings, two of which are the iconic skyscrapers we’ve seen in current and previous renderings. The master plan also includes offices for 1,000 people, auditoriums and cultural institutions. The two schools are the work of the design architect Architecture Research Office and Ismael Leyva Architects as a reference architect. Silman Associates and Magnussen Klemenic is the structural engineer, Consentini & Associates is the MEP engineer, Front Inc. is the facade consultant, Nelson Byrd Woltz is the landscape architect, Thorton Thomasetti is the sustainability consultant, Lighting Workshop is the lighting consultant, Langan is the geotechnical engineer, and AKRF is the civil engineer.

Below is a rendering of the exterior of KGIA at 380 Schermerhorn Street. KGIA will receive a new cafeteria, gymnasium and library, and the elementary school to be located at 489 State Street will have a gymnasium and auditorium also accessible to the community.

The high school of the Khalil Gibran International Academy. Courtesy of Alloy

The residences will be located between the third and 41st floors of 100 Flatbush Avenue, while the majority of residential amenities will be housed in the podium and will include a fitness center, flexible workspace and an outdoor rooftop pool. A total of 850 units will be built when the two phases are completed, including 200 permanently affordable units. As part of sustainable construction, all building functions will run on electricity, including induction cooktops, heat pump dryers, hot water and HVAC.

The nearest subways are trains 2, 3, 4, and 5 at Nevins Street station to Flatbush Avenue and trains B, D, N, Q, and R at Atlantic Avenue-Barclays station. Long Island Railroad trains under Atlantic Terminal cross Flatbush Avenue in the southeast.

Construction is expected to begin this month on the first phase of the alloy block, with a completion date of 2024.

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