Chandler B. Barton was named chairman of the Residential Group of Coldwell Banker Real Estate Group in Newport Beach, succeeding Joe F. Hanauer in the top job at the nation’s third-largest chain of residential brokerages. . . . Barratt Developments PLC says it has begun building California-style houses in its native Britain, and U.S. subsidiary Barratt American in Irvine this week hosts 40 of the company’s directors and top officers who will inspect the real thing. . . . Burke Commercial Development Co., Irvine, began construction of the $65-million, 1-million-square-foot Airport Commerce Center South in Ontario with joint venture partner Cal Fed Enterprises. . . . Crown Pacific Corp. in Anaheim Hills began construction of the $2.5-million Walnut Auto Plaza in Walnut. . . . Warren D. Fix, former senior vice president and chief financial officer at the Irvine Co., joined SDC Development Corp. in Newport Beach as chief financial officer.