The District of Columbia Board of Zoning Adjustment made the following decisions on requests for variances and special exceptions to zoning laws at its meeting Sept. 2. For more information, call 727-6311.

NORTHEAST

EAST CAPITOL ST., 224 -- Denied a request to reconsider an earlier decision prohibiting the American Cancer Society from operating professional offices in the Capitol Hill residential zone.

NORTHWEST

O ST., 1520 -- Denied a request by the National Paint and Coating Association Inc. to operate a parking lot in a residential zone.

Q ST., 2230 -- Denied a request by William Brock to build a second-story addition to an existing garage in a residential zone.

GEORGIA AVE., 3646 -- Granted a request by So Kwang Park to add a food store to an existing gas station in a commercial zone.

LIVINGSTON ST., between 3501 and 3503 -- Reversed a decision by the zoning administrator, who had determined that the space between two lots was large enough for a building.

MACARTHUR BLVD., 4434 -- Granted a request by MACMED Limited Partnership to build a medical clinic in a residential zone.

MORRISON ST., 3725-3729 -- Granted a request by Safeway Inc. to continue to operate a parking lot in a residential zone.

RESERVOIR RD., 4707 -- Granted a request by John Bodner to modify plans for an addition to a single family house in a residential zone.

11TH ST., 1129-1133 -- Granted a request by Dong Kyu Kim to allow office use in a special purposes zone.

22ND ST., 1330 -- Granted a request by N Street Limited Partnership to continue to use a lot for parking for an adjoining apartment building.

25TH ST., 914 -- Granted an application from Milton Carrow to build a rear addition to a single family house.

SOUTHEAST

12TH ST., 303 -- Granted a request by David and Janet Barnes to allow a parking space smaller than required by zoning regulations.