Martin Brixen, founder and president of Brixen & Christopher Architects, will retire from the firm effective March 31.

James W. Christopher, who joined Brixen in a partnership in 1963, will become president of the firm. Myron G. Richardson, J. Arthur Pett Jr. and Andrew M. Ramsay will become vice presidents.In 1987, Brixen & Christopher was named the architectural firm of the year by the Western Mountain Region of the American Institute of Architects, recognized as producing outstanding architecture for 10 years or more. From 1956 to 1963, Brixen was director of the University of Utah's Department of Planning and Construction.

Some of the projects the firm has under design include a new Utah Department of Employment Security building for block 53 (bounded by Third and Fourth South and State Street and 2nd East), remodeling of the State Office Building behind the State Capitol and a campus master plan for Westminster College.

Projects under construction that Brixen and Christopher designed are Salt Lake County's new Park Library in Taylorsville, offices for IBM in Salt Lake City and Idaho Falls and a computer center for Hill Air Force Base.