139 Sixth Avenue is a three story, four unit co-op in Park Slope’s Historic District, a pre-war 20 foot wide brownstone in the North Slope. The building sits among a row of ten Italianate brownstones constructed between 1869 and 1871, and its apartments retain original details such as marble mantels, wood shutters, moldings, millwork, and high ceilings.
Private outdoor space is a recurring part of the building’s layouts, including roof rights and garden access. Apartments also have in-unit laundry, basement storage, generous proportions, and rear bedrooms oriented toward gardens or other quiet exposures. The four unit co-op is self managed and pet friendly.
Interior layouts preserve the floor through character of a traditional brownstone, with living and dining spaces arranged across the broad front of the building and bedrooms toward the rear. Wood burning fireplaces, built-ins, pantry storage, renovated kitchens and baths, and east or west exposures appear across the homes, while the private roof deck adds views of neighborhood rooftops, church steeples, and open sky.
Prospect Park and Grand Army Plaza are a few blocks away, with the Brooklyn Museum, Brooklyn Botanic Garden, Brooklyn Public Library, BAM, and Barclays Center also close by. The Grand Army Plaza station serves the 2 and 3 trains, while the 7th Avenue station serves the B and Q; Fifth Avenue’s restaurants, the Park Slope Food Coop, and neighborhood shopping are nearby.
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For some co-ops, instead of price per square foot, we use an estimate of the number of rooms for each sold apartment to chart price changes over time. This is because many co-op listings do not include square footage information, and this makes it challenging to calculate accurate square-foot averages.
By displaying the price per estimated room count, we are able to provide a more reliable and consistent metric for comparing sales in the building. While we hope that this gives you a clearer sense of price trends in the building, all data should be independently verified. All data provided are only estimates and should not be used to make any purchase or sale decision.