Making a
better
Brooklyn.
Projects
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One Third Avenue
New York's City's tallest mixed use passive house tower.
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505 State Street
New York's First All-Electric Skyscraper
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489 State Street
New York's First Passive House Schools
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168 Plymouth Street
The Last Loft Conversion in Dumbo
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One John Street
The Last 42 Homes on the Dumbo Waterfront
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Dumbo Townhouses
The Only Townhouses in Dumbo
We are committed to making Brooklyn beautiful, sustainable and equitable.
Happenings
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Career Pathways Workshop at 240 Nassau Street
Join us for a Career Pathways Workshop at 240 Nassau Street to engage in discussions with industry leaders in the real estate industry!
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Alloy Development is one of the world's 50 most innovative companies of 2025
Alloy is recognized by Fast Company as one of the world's 50 most innovative companies of 2025.
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NYC DOE Chancellor Aviles-Ramos visits KGIA and PS456.
Alloy tours New York City DOE Chancellor Aviles Ramos through New York City's first passive house designed schools.