The Rockville City Council is considering a plan to permit construction of townhouses on a portion of the remaining 11 acres of the Dawson fam off Rockville Pike. The Dawson farm, dating back to the mid-1800s, is one of a few farms remaining within the city.

The development proposal by Pettit & Griffin Inc. of Rockville, present owners of the land calls for construction of 60 colonial-style townhouses to be built on six acres.

The remaining land will be conveyed to the city for use as a park, according to Larry Owens of the city's planning department. Included in the park would be the 1852 Dawson farmhouse. Another acre of land, on which the family's 1912 house sits, is to be donated to the Montgomery County Association of Retarded Citizens for use as a group home.

The city's Historic District Commission is pushing to incorporate a portion of the 11 acres into the city's historic district in an attempt to preserve the land and the historic buildings. Development plans for the area would have to meet specific criteria established by the commission if the land is designated a historic parcel by the city.

In other business, the council heard a report on the rehabilitation of the B&O Railroad Station in downtown Rockville.

Eileen McGuckian, president of a historic preservation group known as Peerless Rockville, said the station, built in 1873, is slated to be moved in June to make away for Metro. The structure is to be moved 30 feet south and 30 feet west of its present site.

In 1977, the group prevented demolition of the station, which was designed by E. Francis Baldwin. Under an agreement with Metro, the preservationists will maintain the structure after Metro pays for its move. McGuckian said her group has used a $14,500 city grant to make improvements to the facility.