Decisions by the Board of Zoning Adjustment [BZA] recently cleared the way for the Sidwell Friends School to construct a new gym, an art center and a maintenance building on its Wisconsin Avenue campus and for the U.S. Chamber of Commerce to build an addition to its headquarters at 1616 H St. Nw.

In another decision, the BZA declined to approve proposed $2 million additions alongside and on top of the Army and Navy Club on Farragut Square.

"A monster is going to be created on Farragut Square -- a veery important square in this city," said John G. Parsons, a member of the D.C. Zoning Commission, who took part in the recent BZA meeting. A Zoning Commission member regularly participates in BZA decisions.

The board asked the Army and Navy Club to submit a new plan "which takes into account the historic character of the building and the square."

Although Dupont Circle residents charged that an office building to be constructed behind historic row houses on N Street NW would not be in harmony with the surroundings, the BZA refused to change its decision to grant variances that will allow the building's construction.

"A good faith effort has been made to blend the old with the new," said BZA chairman Leonard McCants, explaining the board's decision.

But Ann Sellin, of the Dupont Circle Citizens Association, said after the meeting that her group would take the case to court.

In other actions, the BZA:

Denied the application of Vallee, Inc. for variances to convert a gas station to an office building and to use adjacent property for parking. Part of the gas station is in a commercial zone and part is in a residential zone.

Granted for two years the application of Pollin Development Co. for a special exception to continue operating a parking lot at 460 Massachusetts Ave. NW and for a variance from a new city regulation barring all-day commuter parking in special purpose zones, which are areas zoned for residences and offices of professionals and of nonprofit groups.

Granted for three years the application of Colonial Parking Inc. for a special exception to continue operating a parking lot in a special purpose zone at 809-813 6th St. NW.

Denied the application of Vivian Moses Jr. for a variance from the prohibition against having an open parking sapce within 10 feet of a one-family dwelling at 6102 3rd St. NW.

Denied the application of Eugenie B. Duncan for a variance to use the second floor of a building in a residential zone at 901 Allison St. NW as a boarding house for five persons.

Granted the application of Leonard R. Viner for a special exception to continue operating a parking lot in a residential zone at 704-712 Lamont St. NW, provided that a wood fence be constructed five feet from the property line to screen the parking lot and a hedge and grass be planted in front of the fence.

Granted for two years the application of Andrew Saul for a special exception to continue operating a parking lot in a residential zone in back of an apartment house at 2720 Ordway St. NW.

Granted the application of Brookland Properties, Inc. for a special exceptions and variances to allow the conversion of several stores at 901, 903 and 905 Monroe St. NE into a restaurant, provided the proposed parking lot be set back from the street.

Granted the application of Citadel Corp. for a special exception to use the first floor of a building in a commercial zone at 1317 9th St. NW as a gasoline service station.

Denied the application of Capitol Investments Inc. for a variances to use a building in a residential zone at 2020 Connecticut Ave. NW for offices.

Refused to overrule the chief of the Permit Branch in canceling the certificate of occupancy for Rodman's Drug Store at 5100 Wisconsin Ave. NW. The Permit Branch had found that the drug store violated certain aspects of the building code, including parking regulations.