CHICAGO — Chicago-based Newcastle Ltd. has acquired the historic Belmont House, a 269-unit apartment tower located at 3170 N. Sheridan Rd. in the Lakeview neighborhood of Chicago, for $56 million. The 13-story, 315,000-square-foot building also contains 9,000 square feet of retail. The property was acquired by Newcastle from Wexenthaller Realty Management on behalf of the firm’s $500 million Chicago investment platform. The Belmont acquisition was part of an 896-unit, seven-property portfolio purchase from Wexenthaller; the other six buildings should close in the next 30 days. Newcastle was represented by The Kiser Group.