The mall's second major renovation replaced its open Plaza Level with a fully-enclosed Plaza Court. Construction commenced in February 1979, with the structure being officially dedicated in August 1980. Forty-seven restaurants and boutiques were housed in the new 3-level atrium.
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Please pardon the quality. Above and below are two snapshots from one of my first visits to LENOX SQUARE, in 1986. These show the original, 3-level Plaza Court.

In this photo, we see the circa-1986 entrance to the mall's first Macy's (nee' Davison's, now Bloomingdale's).