The Loudoun County Board of Supervisors accepted last week the offer of a three-acre site in Leesburg from area resident and businessman William Rust for a new library.

The site on the old Waterford Road is part of a 141-acre parcel of farm and pasture land Rust donated to the town of Leesburg in June. Although one of the conditions under which Rust offered the gift was that it never be developed, county administrator Philip Bolen said Rust's concern was that a school might be built there.

"He likes the idea of a library," Bolen said.

No construction plans have been made, Bolen said. Leesburg officials "are considering" at least 20 people to serve on the newly created parks and recreation advisory commission, designed to "support and assist" the town in developing parks and recreational areas, most notably the Rust Park, which is named "Ida Lee" after Rust's grandmother. Applications for the commission are still being accepted, a spokesman said.

A dozen rezoning applications have been submitted to Leesburg's planning office since July 1, an unusual trend for the town, according to chief planner Thomas Poupard.

"Until recently most of the activity in this office dealt with site plans and subdivisions," Poupard said. "Now that we've run out of developable land, people are starting to rezone."

The latest rezoning request came from the Westpark Hotel chain that purchased Leesburg's Sigwick Inn in August. The developer has asked that 18 acres adjoining the motel be rezoned from agricultural to commercial to expand the facility. The Sigwick is located on the Rte. 7 bypass.

Other figures released by Poupard show that 130 residential zoning permits have been issued since July 1. The total number of housing units now on the drawing boards in Leesburg is 4,352. Based on a household size of 2.6 persons, these units could increase Leesburg's population by more than 11,300 within the next seven years, Poupard said. Officials expect Leesburg's population to hit 10,900 by the end of this year.

Last week the Loudoun County Circuit Court approved Leesburg boundary line adjustment to include 190 acres along the Potomac River, according to Assistant Town Manager Stephen Owen.

The adjustment brought 285 acres of Potomac Crossing, a residential development, entirely within the town corporate limits, he said. It will also bring all of Ball's Bluff, a national cemetery and battlefield, into Leesburg. The 475 acres of hilly forest land were recently designated a national historic landmark. The boundary line agreement, reached with the cooperation of the Loudoun County Board of Supervisors, is effective immediately.