The following were among actions taken by the Alexandria Board of Architectural Review, Old and Historic District Panel, at its Oct. 21 meeting. For further information, call 838-4666.

The following requests were approved:

DUKE ST., 805-By Vello Oinas to construct on a wood two-story town house a 19 1/2-by-18 foot, two-story wood rear addition. 7 to 0.

HENRY ST., S., 212-By C. William Fotis Jr. to construct on a vacant lot a brick, three-story, 23-by-71 foot commerical building. 6 to 1.

KING ST., 1125-By Judy Martin to erect on the first floor of a two-story brick building a hanging, 24-by-48 inch oval wood sign that will read "Palais Royal." 7 to 0.

WASHINGTON ST. S., 228-By Mark S. Walker to erect on the first floor of a three-story, brick building a 30-by-30 inch wood sign that will read "Heritage Art Gallery of Classic Realism, 228 South Washington." 7 to 0.

UNION ST. S., 203 -- By Wilma l. Cleary to erect on the first floor of a two-story brick building a wood hanging sign that will read "Rococo." 7 to 0.

The following requests were deferred for further study:

CAMERON ST., 222-By Philip Buckingham to erect an awning that would read "Mylandre Coiffures" over the first-floor entrance of a four-story brick building.

FRANKLIN ST., 600-By Cole and Denny Inc. for approval of architectural design details for a planned, three-story, brick office and retail building to be built on a lot that has two one-story brick buildings.

GREEN ST., 815-By Guillermo Mata to construct a wood deck with stairs and to replace a window with French doors on the rear second story of a two-story, brick town house.

KING ST., 715-By William T. Harkey to erect an awning that would read "Nam's River" over the first-floor window of a three-story, brick town house.

KING ST., 907-By S.K. Dogra to erect on the first floor of a three-story, brick building a 2-by-3 foot hanging wood sign that would read "Papajohn's Cafeteria."

WASHINGTON ST. N., 115-By Philip Buckingham to erect a canopy that would read "Jacobs Gardner, Best Jewelry," over the first-floor entrance of a two-story brick building.

WASHINGTON ST. N., 725-By the Amoco Oil Co. to replace windows and add window trim at a gas station.