FILE - In this Nov. 12, 2008 file photo, carpenters work on the roof of a 30-story condominium project in the Williamsburg section of New York. The Edge, built by Douglaston Development on the East River waterfront in Brooklyn has both open market condominiums and subsidized housing. Mayor Bill de Blasio has an ambitious plan is to build or preserve 200,000 affordable units of housing over the next 10 years for lower-income New Yorkers, a staggering number that would house a population bigger than cities such as Atlanta or Minneapolis. (AP Photo/Mark Lennihan, File)