291 Union St

Sackett Union is a seven-story, 37-unit condominium completed in 2012 and located on the border of Carroll Gardens and Cobble Hill in Brooklyn. The mid-rise masonry building combines townhouse scale with elevator access and features a mix of duplex and single-level three-bedroom residences finished with wide-plank white oak floors and high-end chef kitchens. Many homes include private outdoor space—balconies, planted backyards, or access to a large communal roof deck—and several units deliver duplex proportions that mimic brownstone living while sitting inside a full-service condominium. The building offers a staffed lobby with 24-hour desk attendants, a full-time superintendent and part-time porter, two elevators, video intercoms, assigned private storage cages, and indoor deeded parking for select units. Shared amenities emphasize family and fitness: a large, well-equipped gym with yoga and Peloton equipment, a supervised children’s playroom, bike storage, and a package room with perishable storage. The crowning common space is a panoramic landscaped roof terrace with sweeping views toward Manhattan, the Statue of Liberty, and surrounding neighborhoods. Interiors emphasize durable, modern systems—in-unit washer/dryers, central HVAC in some residences, substantial built-ins and pantry storage, and solid-construction sound separation. The association permits pets in line with typical condo policies and maintains building-level services that aim to blend the privacy and proportions of brownstone-style homes with the convenience and security of a full-service development in a tree-lined, transit-accessible Brooklyn neighborhood.