Martin "John" O'Reilly

John O’Reilly is a native of Ireland, but he has proudly called Park Slope home for 23 years. In that time, he has developed a deep knowledge of Brooklyn and its unique neighborhoods.

John has been involved in all aspects of real estate sales, construction and property development for over 25 years. He has participated in hundreds of transactions representing sales of multi-unit buildings, single-family homes, commercial properties, condominium projects and new construction. He has a wealth of experience including renovating many brownstones in Park Slope. He generously shares this knowledge with his clients. When you work with John, you will receive the highest level of service and professionalism in the business. Possessing strong negotiating skills and a long history of personal relationships you will be in good hands with a broker who is connected, organized, straightforward and experienced.



Recent Transactions


Main Street
Bedrooms: 5
Bathrooms: 4.5
Garfield Place
Bedrooms: 6+
Bathrooms: 5.5
Neighborhood: Park Slope
Washington Avenue
Bedrooms: 2
Bathrooms: 1
Neighborhood: Prospect Heights
13th St
Bedrooms: 2
Bathrooms: 2
Neighborhood: Park Slope


8th St 1 Bedroom1Park Slope$2,650
4th St1 Bedroom1Park Slope$2,800
13th St3 Bedroom2Park Slope$5,100
13th St2 Bedroom2Park Slope$4,950