Dr. Jack W. Carlson, who has been vice president and chief economist of the U.S. Chamber of Commerce since 1976, has been unanimously selected to become executive vice president of the 700,000-member National Association of Realtors, effective June 1.

Carlson's selection, announced this week during a NAR board of directors meeting in Chicago, follows a year-long search for a successor to H. Jackson Pontius, who announced intention to take early retirement a year ago. The post reportedly pays in excess about of $100.000.

A native of Salt Lake City and holder of a doctorate in economics from Harvard, Carlson has held several high federal posts here, including assistant secretary of interior for energy and minerals. He also was an assistant secretary of both Air Force and Defense.

A homeowner in Potomac, Md., and the father of seven children, Carlson did undergraduate work at the University of Utah and also sold real estate briefly in Utah during the 1950s. Since moving to Washington about nine years ago, he also has taught courses at both the University of Maryland and George Washington University.

Serving with Carlson in top NAR posts will be senior vice presidents Ray Roper in Chicago and Albert Abrahams in Washington. Carlson is expected to split his time between the NAR offices in Chicago and Washington.

Bruce Winston and Mel Estrin are partners in the start of a condominium community of 84 attached dwellings, to be called Brummel Manor, on Blair Road NW, about half a mile from the Takoma Park Metro station. Sulton Campbell & Associates designed the houses.

William D. Prince has been named manager of the guaranteed sales program set up by Hugh T. Peck Properties Inc., an area-wide realtor firm.The Peck firm guarantees a seller that a house will be sold within four months.

Eileen M. Day has announced that her real estate firm in Washington, Va., has affiliated with the Realty World franchise, based in Vienna.

Don David Derzavis of Bethesda has purchased 500 acres that he plans to develop into a planned, mix-use community near Fort Myers on the west coast of Florida.

Sterling Tucker, assistant secretary of HUD for fair housing, will be the keynote speaker for the first annual meeting of the Community Housing Resources Board Inc. of Montgomery County on Thursday at 8 p.m. at the Rockville Civic Center.

The Philadelphia-based Jackson-Cross Co. has named George E. Howell as manager of the firm's new office in downtown Washington. Jackson-Cross is active in the real estate appraisal and consulting.

Neil A. Curtis has been named real estate manager for Montgomery Ward's north-eastern region. His office is in Baltimore. CAPTION: Picture, JACK W. CARLSON . . . realtors executive