504 Grand Street A4 The Amalgamated Dwellings is a pre-war co-op building in downtown Manhattan's Lower East Side neighborhood inspired by pre-war architecture from Vienna and finished in 1929. Situated at 504 Grand Street, between Columbia Street and Willett Street, the building contains 237 units and rises 6 stories. Residential amenities include a lush green courtyard, 24-hour security, package room, live-in superintendent, maintenance staff, laundry room, bike room, and fitness room. It is close to Kiki's, Bacaro, Wu's Wonton, Nakamura, Dimes, Essex Market, Trader Joe's, Clandestino, Forgetmenot, Kopitiam, East River Park, and the newly restored Luther Gulick Park.