In fall 2010, the Greater Baltimore Committee, a local influential business group, proposed an estimated $900 million project that would demolish the 1979 wing of the Baltimore Convention Center east of Sharp Street, plus the Sheraton Inner Harbor Hotel on the same block, and replace the buildings with a four-story, 760000 sqft convention center expansion, an 18,500 seat arena that will replace Baltimore's existing 1st Mariner Arena over two levels of underground parking, a new 500-room Sheraton hotel and stores and restaurants facing Pratt, Charles and Conway Streets.