1,253 square feet. Two full levels. What would you do with all this space? Welcome to Unit 1D at Stanton on Sixth, a sun-drenched duplex in the heart of Greenwood Heights — luxury condominium living, with a generosity of space that is rare to find. The 664-square-foot main level opens to a gracious living and dining area beneath 10-foot ceilings, with wide-plank hardwood floors and an open chef’s kitchen appointed with Caesarstone countertops, custom cabinetry, a Porcelanosa tile backsplash, a Bertazzoni gas range with full venting, a Liebherr refrigerator, and a Viking dishwasher. The king-size primary bedroom offers abundant closet space and a Porcelanosa-tiled bath with radiant heated floors. Then there is the lower level: 589 windowed square feet, with its own half bath, the laundry, and a large closet alongside — and its own separate entrance, which puts you steps from the building’s fitness center. A real home office, tucked away from the living space upstairs. A guest suite when family comes to town. A playroom, a media lounge, a studio — the possibilities are endless, and they are all yours to choose. Zoned central heating and cooling and recessed lighting run throughout. Stanton on Sixth is a 33-unit elevator condominium built in 2017, with a two-story hotel-style lobby, a Peloton-equipped fitness center, bike storage, and a furnished roof deck with grills and sweeping views of Lower Manhattan, Brooklyn, and the harbor. Tree-lined Sixth Avenue puts Prospect Park, Greenwood’s cafés and restaurants, and the R train all within an easy stroll. Deeded parking is available for purchase. Homes this size, spread over two levels, do not come along often on Sixth Avenue — come walk it and start deciding what all this space becomes.