INTERNATIONAL DEVELOPERS INC., its head, Giuseppe Cecchi, and "the Techworld Team" are throwing a little bash at the Vista International Tuesday evening.

Invitations say the party is to allow the developers of the proposed Techworld project across from the Convention Center "to express their appreciation" to supporters, but to opponents of the controversial project, it looks a lot like a victory party scheduled before the fat lady has sung.

The D.C. Zoning Commission is due to vote Monday on whether to allow the hotel and office complex to go forward. The project is billed as a kind of high-tech merchandise mart where manufacturers could set up permanent displays of their products.

Cecchi has argued that unless he gets the configuration he has asked for -- relatively high density and a large connecting bridge across Eighth Street -- he will not be able to attract the tenants he wants.

Opponents are unhappy about the closing of Eighth Street and the bridge, which they say would restrict the historic vista from Mt. Vernon Square to the National Portrait Gallery.

Zoning handicappers are picking Cecchi to win on a close vote, probably 3 to 2.

RESTON LAND CORP. plans to build 60 town houses on what was set aside in 1960 as a potential school site.

Reston Land agreed this week to reduce the number of units it wanted to build on the site from 70 to 60 at the request of the Fairfax County Planning Commission. The county Board of Supervisors approved the 60-unit plan for a 14-acre site at the intersection of Wiehle Avenue and North Shore Drive.

The company agreed not to provide road connections to adjacent developments before the board agreed to change the county's comprehensive land use plan for the site from school use to residential use.

"We are not proffering that the only access will be from North Shore Drive. But we are committed to that," attorney Ed Prichard said. Proffers would have been out of line because proffers, or promises made to the county on a specific project, are only binding during a rezoning action. This week's action on the Reston Land proposal was the first step in the approval process.

Prichard said current plans call for deeding an existing playground on the site to the Reston Home Owners Association.

PERSONNEL FILE . . . The Federal Home Loan Mortgage Corp. has named Victor F. O'Laughlen vice president-controller. He formerly was with the Food Service Management Group of the Marriott Corp. . . . The KMS Group Inc. has appointed Roger A. Waesche Jr. director of finance for the company . . . Dan Demeria has been appointed vice president of marketing at Builders Marketing Inc. . . . J. Larry Galey has been named director of sales and marketing for Porten Sullivan Corp. . . . Anne Wellborn has been named sales manager of Town & Country Properties' Lake Anne office in Reston . . . Attorneys Alan F. Greenwald and A. Carroll Bull have joined Oxford Mortgage and Investment Corp. . . . Virginia builder Emil M. Keen has been named to the National Association of Home Builders Hall of Fame . . . Samuel A. Finz, chief executive officer of the Northern Virginia Builders Association, has been named to the Citizens Advisory Commission on Housing in Arlington . . . Property Co. of America has named James W. Craig construction manager-commercial and C. Michael Duncan director of property management-commercial.