Dallas - Locally based Koll Development Co. has announced a reorganization of its senior management structure and a shift in emphasis toward balancing the speculative and build-to-suit development programs currently underway, naming Steve Van Amburgh as CEO.

Van Amburgh, who has more than 10 million sq. ft. and 14,000 acres of real estate development experience, joined Koll in 1989 after nine years with Dallas' Las Colinas Corp. He most recently served as director of the firm's corporate development unit.

Donald Koll, who founded the company in 1962, will continue as active chairman of the board. Koll also sits on the board of directors for CB Richard Ellis, The Irvine Co. and Fidelity National Title.