M.C. O'Brien, Inc. | 100 Years of Commercial Real Estate Service in Brooklyn & Queens

Since 1909

M.C. O’Brien, Inc. is the oldest commercial real estate firm operating 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.

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Serving Brooklyn and...

M.C. O'Brien's extraordinary history of serving the New York City's outer boroughs has brought us a wealth of experience in all commercial property types – Office, Industrial, Retail, Multi-family, Mixed-Use & Development.

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Relationships First

At M.C. O’Brien, Inc., our specialty is our clients. We believe in building long-term relationships with all of our clients by providing a high level of personal service and commitment to fully achieve their real estate goals.

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Service-Oriented

Whether you are buying or selling commercial properties, seeking property management services, or looking for warehouse, retail or office space, M.C. O'Brien knows the market– and we make it our business to learn your business.

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A Shared Success

M.C. O’Brien strives to deliver levels of service beyond our clients’ expectations. By developing a relationship with us you can be sure that you have the industry’s most committed people working toward the success of your business.

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Call for Price

Marine Park Retail for Sale

2366 Flatbush Avenue in the Marine Park area of Brooklyn is for Sale. This two-floor building, plus additional basement space, is on a highly visible street and within close proximity to public transportation; Buses B2, B9,...

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$5,000,000

Flatlands Industrial Site for Sale

505 Cozine Avenue (“Spring Creek Industrial Park”) in the Flatlands section of Brooklyn is for Sale. This 38,000 square foot, single-story construction with 20 foot ceilings falls within the Empire Zone Location with...

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Since 1909

Serving Brooklyn and...

Relationships First

Service-Oriented

A Shared Success

Marine Park Retail for Sale

Flatlands Industrial Site for Sale

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