21B Group
3823 13th Ave Brooklyn, NY 2–10 employees 2 principals
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About 21B Group
21B Group is a real estate operator headquartered in 3823 13th Ave Brooklyn, NY.
21B Group LLC launched in 2014 and operates under Ownly Management dba 21B Group. By 2025 it has delivered 478+ units totaling over 625,000 square feet, with a portfolio current value exceeding $634 million. The firm’s long-term goal is to develop $21 billion in New York metropolitan real estate over 30 years. Its projects span multiple property types, with emphasis on luxury residential, mixed-use and community oriented developments. Examples include a 120-unit “Hana” multi-family residential project with ~121,000 sq ft footprint begun in 2021, and a Downtown Elizabeth scheme encompassing 140 units across ~185,000 sq ft. The company also develops mid-rise rental, loft, and mixed format housing in its portfolio.
Principals at 21B Group
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