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781 Union Street is a 1912, four story brownstone co op in Park Slope with eight apartments. The self managed building has a restored lobby with original detail, and its underlying mortgage has been paid off, giving the property a straightforward ownership structure at a compact scale.
The building includes a top floor front facing one plus bedroom layout organized around a separate den or office nook. Apartment interiors pair pre-war character with modern updates, including original wide plank pine floors, high ceilings, large windows, eat in kitchens, and skylit bathrooms. Natural light is a recurring feature, with north easterly and southern exposures represented among the homes.
Basement amenities include central laundry, bike storage, and private storage lockers, with pets permitted upon approval. The building's residential details include restored original elements alongside renovated kitchens and baths, preserving the brownstone character while accommodating contemporary use.
The location is especially concentrated: the Park Slope Food Co op and Union Market are less than a block away, while Prospect Park is about three blocks south. The Brooklyn Botanic Garden, BAM, the Barclays Center, and the shops and restaurants along Fifth and Seventh Avenues are also close by. The R stops at Union Street, and the 2 and 3 stop at Bergen Street.
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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.
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