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21B Group logo

21B Group

2–10 employees 2 principals

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Last updated 3mo ago

About 21B Group

21B Group is a real estate operator. 21B Group operates in New York City, New York. Its investment focus is on Multifamily - Core, Multifamily - Ground-up and Single-Family Homes.

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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2 principals on file

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Recent activity at 21B Group

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21B Group's project portfolio

3 projects on file · Multifamily (3)

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Every development in this GP's portfolio — location, unit count, square footage, and build status — plotted on an interactive map.

Markets and themes

Markets 21B Group operates in

  • New York City, New York

Investment themes at 21B Group

  • Multifamily - Core
  • Multifamily - Ground-up
  • Single-Family Homes

Capabilities

  • Construction Management
  • Data-driven
  • Mixed Use
  • Site Development
  • Sustainability
  • Technology-forward

Operators similar to 21B Group

  • CityPlat
    Emerging tierMultifamily - CoreMultifamily - Ground-up+1 more theme
  • Gilezan Global
    Emerging tierMultifamily - Ground-upMultifamily - Core+1 more theme
  • Seventh Street Development Group
    Emerging tierNew York City, New YorkMultifamily - Ground-upSingle-Family Homes
  • BLD Developers
    Emerging tierNew York City, New YorkMultifamily - Ground-upSingle-Family Homes
  • Design Pro Development
    Emerging tierMultifamily - CoreMultifamily - Ground-up+1 more theme
  • Exera Asset Management
    Emerging tierNew York City, New YorkMultifamily - Ground-upSingle-Family Homes
  • Devora Realty
    Emerging tierSingle-Family HomesMultifamily - Ground-up
  • Pace Development
    Emerging tierMultifamily - Ground-upSingle-Family Homes
  • The Bainbridge Companies
    Emerging tierNew York City, New YorkMultifamily - Ground-up
  • Beljan Development
    Emerging tierMultifamily - CoreMultifamily - Ground-up

Frequently asked questions about 21B Group

What does 21B Group do?
21B Group LLC launched in 2014 and operates under Ownly Management dba 21B Group.
What markets does 21B Group operate in?
21B Group is active in New York City, New York.
How many employees does 21B Group have?
21B Group has 2–10 employees.
21B Group cover image

21B Group at a glance

Tier
Emerging
Operator type
Developer, Owner
Headcount
2–10
Units owned
<1,000
Units managed
<1,000
Property mgmt
Self-Managed
Markets
1
Principals
2

Contact 21B Group

3823 13th Ave Brooklyn, NY 11218
21b.dev