The Fairfax County planning staff is recommending that the Board of Supervisors approve construction of a new corporate headquarters for McLean Savings and Loan Association along Dolley Madison Boulevard at Ingleside Drive near the center of McLean.

The proposed building plan would provide land that is needed for a pedestrian bridge across Dolley Madison. The developer, Robert Young, has increased his contribution toward construction of the bridge in the process of getting the one-acre site rezoned from residential to commercial. The savings bank would be the sole tenant in the headquarters and eventually buy the building from the developer.

Construction of the bridge is likely many years away, because approval by state highway and county officials will be necessary and local citizens are expected to be involved in the planning, Young said.

"At that point when the Fairfax County government says they want the bridge and the state highway department approves the project with input from area residents, we will put up $25,000 toward construction costs of the bridge," Young said this week.

In the original rezoning application filed in early summer, Young also had offered to include the design and engineering for the bridge, at an estimated cost of $25,000, at the same time design and engineering was done on the office building. That offer is now part of amendments to the original application, making the developer's current projected contribution to the bridge $50,000.

According to a county staff member, there already is more than $110,000 set aside to build the bridge. That includes $50,000 provided by developers of McLean House, a high-rise condominium built in the early 1970s. The rest of the fund has come from contributions by the county and from interest payments.

The staff recommended approval of the project after the developer agreed to revamp internal traffic patterns and restrict use of below-grade parking during the day. Young plans to lease that parking at night to a nearby restaurant.

The proposed three-story building exceeds the height called for in the county's comprehensive plan, but staffers said the increased height "is appropriate in this case due to the provision of a pedestrian overpass at this location and the commitment of the applicant to provide the architectural and engineering design and a financial contribution for the overpass."

In addition, the county staff report noted that the site is considered the best possible location for an overpass across Dolley Madison in this busy stretch of road between the Central Intelligence Agency and Tysons Corner. Many McLean residents have said that the bridge is needed to link the McLean business district with the McLean Community Center and a county library. Both the center and the library also would be accessible by bicycle or on foot for students at McLean High School. The proposed overpass would be accessible to the handicapped, Young said.

Fairfax supervisors will act on the office building proposal Sept. 17. If construction of the building is approved, "We plan to file a final site plan the very next day," Young said. "We plan to ask for expedited approval of the project that now has a total value over $5 million. We would like to start construction by the first of 1985 and finish it by Christmas of '85."