In what could be a precedent-setting action, Scarborough Corp. plans to give written, detailed information sheets on proposed or anticipated transportation projects scheduled to be built near two of its planned subdivisions in western Fairfax near the proposed Springfield Bypass.

Scarborough officials this week revealed they would make written details available to potential purchasers in the Fairwoods and Emerald Chase subdivisions on West Ox Road.

The Fairfax County Board of Supervisors, in separate actions, recently approved final plans for two Scarborough single-family detached developments straddling West Ox between Lawyers Road and Centreville Road. A total of 239 homes will be built in the two developments, according to attorney Charles Shumate. Shumate said this week details about the Springfield Bypass will be given to potential homebuyers.

In recent weeks the Fairfax board has heard complaints from residents of the Burke area and other parts of western Fairfax who have said they were not told by their real estate agents about pending or proposed major road projects in or near the neighborhoods where they purchased their homes.

Residents of Ascot Walk, a Victorian development along the Leesburg Pike west of Baron Cameron Road, also beat back an attempt by the builder of an adjacent subdivision to construct a connector road because they said the proposed artery would be a major shortcut between the busy Leesburg Pike and Reston. Even though such a connector is on the county's future road plan, homebuyers at Ascot Walk told the board they did not know about it.

"This action by Scarborough could help set a precedent," said one county official. "This will encourage, hopefully, other developers and real estate agents to be more aware of transportation plans."

A legislative subcommittee of the Fairfax board is currently studying possible methods of requiring real estate agents and developers to tell potential buyers about all planned public works projects, including highways, that are in the works near a home that is on the market. Previous efforts to require agents to disclose such information have not been successful because regulations approved were tossed out by the courts.

However, Joseph Hayden, executive director of the Northern Virginia Board of Realtors, said agents would welcome a system to help keep them better informed about planned road projects.

The Board of Supervisors this week approved zoning five acres from R-1 to R-3, three houses per acre, to allow the site to be added to the Emerald Chase subdivision. The site has been called the "donut hole" because the Emerald Chase plan virtually surrounded the small acreage which was not part of the original rezoning for the subdivision in the late '70s. The rezoning will increase the number of homes in the development to 119.

Models are almost finished at Emerald Chase. Houses are expected to sell between $118,000 to $125,000, according to Scott Beatty, vice-president of Scarborough.

Approval of the Fairwoods site came after developers consolidated 12 individual parcels into a 65-acre site on the northeast side of West Ox Road. Scarborough won approval for the development after promising road improvements and preservation of major open spaces.

"The developers also agreed to provide sewer easements through the new development to adjacent property owners in another development who had been having problems with their septic fields, Shumate said.