The Macallen Building is a 140-unit South Boston condo development that achieved Gold LEED Certification in 2007 shortly after construction, making it the first green residential building in the city of Boston. Representing the second phase of the Court Square Press build-out, Macallen is a full service luxury elevator building with loft-style condos. Units boast hardwood floors, oversized windows which flood units with sun light and provide amazing skyline views, and custom open kitchens with granite counters, gas cooking and Bosch appliances. Some units have private terraces. The 30 different floor plans in the building range include studios, one, two and three bedroom units, some of which are duplexes and triplexes.

The Macallen Building features a 24/7 concierge, beautifully landscaped plaza with an outdoor heated pool and gas grills, garage parking, private screening/function room, fitness room, bike storage, and a community zip car.

The Macalllen is located adjacent to the Broadway Red Line Station and is minutes to Downtown Boston, the South End, the Seaport District and the Waterfront. Commuters have easy access to I-93 and I-90. The building is adjacent to many recent condo developments, including the Court Square press Building and 36 A St Lofts. There are additional residential projects planned for this area and also plans for a supermarket and additional restaurants. Residents can easily walk to the rapidly developing Seaport and its many restaurants, the HarborWalk, the Institute for Contemporary Art, the Bank of America Pavilion for outdoor concerts, and the Liberty Wharf restaurants.