Excavation is set to begin at 75 Dupont Street, the site of an eight-story mixed-use building in Greenpoint, Brooklyn. Developed by Madison Realty Capital, the 400,000-square-foot structure will yield 480 homes with 144 designated for affordable housing, as well as 200 on-site parking spaces, community facilities, and a grocery store. Omnibuild is the general contractor for the property, which was formerly addressed as 14 Clay Street and is bound by the confluence of Commercial and Clay Streets to the north, Dupont Street to the south, and Franklin Street to the west.