756 Union Street, aka 209 6th Avenue, in Park Slope, Brooklyn is an approximately 11,000 square foot corner with 133 feet of wrap around frontage, consisting of 12 total residential apartments and a ground floor grocery store, Union Market. Located on the corner of 6th Avenue and Union Street in Park Slope, the property has a total 7 free market apartments and 5 rent stabilized apartments with two separate entrances – one on 6th Avenue and one on Union Street. It is located within walking distance to Prospect Park, Barclay's Center, and the D, R, B, Q, 2 & 3 subway lines.