The saga of the AT&T Long Lines Division's move in 1980 from downtown Washington on Oakton in Fairfax County is the cover story of the upcoming issue of Corporate Design, a slick new magazine about facility management and planning published by Interior Design. Whitney Publications Corp. will mail the first free edition of its controlled-circulation publication Jan. 15 to 25,000 top executives of the Fortune 1,000.

The decision-making behind the move to Oakton interested Corporate Design Editor Roger Yee, said his assistant, Ellen Rudd. An architect and former associate editor of Architectural Record, Yee also liked the new AT&T building, a design of quadrants with a central main-street-like corridor, she said. The magazine is aimed at involving top executives in the process of planning buildings.

AT&T needed at least 400,000 square feet for 1,550 employes and equipment, and couldn't find the space in Washington, Rudd said. Oakton also turned out to be closer to the homes of many of the division's workers, and incentives were offered those who were inconvenienced by the move, she said.

Also in the first edition of Corporate Design are six case studies of moves undertaken by small and large organizations, including that by the Arnold & Porter law firm here from several town houses to a new West End building. The magazine describes the firm's arrangement of its lawyers into "attorney neighborhoods," with larger offices spread throughout the building rather than concentrated on the top floor.

The magazine's 22-member editorial advisory board includes Anthony Downs, a senior fellow at the Brookings Institution who has written about housing issues, and planning and zoning attorney R. Robert Linowes.

Corporate Design also will send complimentary copies to selected architects, executives and others not on the mailing list. Lester Dundes, the publisher, is handling requests. The magazine's address is 850 Third Ave., New York, N.Y. 10022.

Other developments in real estate here:

* The World Bank has moved some of its offices to a 13,000-square-foot branch location at 1828 L St. NW. An additional 90,000-square-foot branch location at 1722 I St. NW is expected to be completed next June.

* The Calvert Group, which administers the First Variable Rate money market fund, is moving its 100-employe administrative and operations divisions to a 30,000-square-foot facility in the Air Rights Building in Bethesda. The branch and corporate offices will stay at 1700 Pennsylvania Ave. NW.

Clarification: Based on information supplied by Fred Erza Co., this column reported incorrectly last week that the law firm of Levitan, Erzin, West, Weinstein and Kerxton had moved to a new location in Bethesda. The move will take place next year.