M. C. O'Brien

Agency

Member since December 2022

Website

$4M

Volume

$4M

Sold

—

Financed

$6M

Leased

Closed

76K sf

Area

About

M.C. O’Brien is the oldest commercial real estate firm located in Brooklyn, New York. Founded in 1909 by Michael C. O’Brien, Sr., M.C. O’Brien continues to be a family-run business by second and third generation family members. Our extraordinary history in the outer boroughs has brought us a wealth of experience in all property types – office, industrial, retail, investment. At M.C O’Brien, our specialty is our clients. We believe in building long-term relationships with our clients by providing a high level of personal service and commitment to achieve their real estate goals. Because we are relationship-oriented and not transaction-oriented, our clients really benefit from our knowledge of the market, our involvement in our community, and our professional education in all aspects of our business. M.C. O’Brien provides a full range of services for both real estate and business owners through our innovative operating platform and entrepreneurial culture.

Top Deals

SOLD

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David Sutton Acquires Mixed-Use Property In Madison, Brooklyn For $2.2M

Virginia | Mixed-use | PPSF: $785

+ 2

09/01/2022

SOLD

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David Sutton Acquires Mixed-Use Asset In Madison, Brooklyn For $2.2M

New York | Mixed-use | PPSF: $785

+ 1

09/01/2022

Focus

Mixed-use

Sale

Markets

Headquarters

4718 Avenue N, Brooklyn, NY 11234

On the web

Website

FAQs

M. C. O'Brien has closed 5 deals (3 sales, 2 leases).

M. C. O'Brien's most recent deal was on July 23, 2025.

M. C. O'Brien's largest deals include a sale of $2,200,000.00 for 1616 Kings Highway, Brooklyn, New York 11229, United States, and a lease covering 44,114 sqft for 2520 Church Avenue.