The rectangular rear addition is functional in design and materials. A passageway at the center of the back bar, where the counter separates, in the main circulation connection between the restaurant and rear kitchen. There is an office and medium size storage room on the west side, general kitchen area in the center, and basement staircase, small closet and rest rooms on the east side (the latter are only accessed from the restaurant area). The walls are cinderblock with plaster on the interior, and the wooden doors are of a simple four-panel design, and were probably taken from an early-20th-century building. There are five, six-pane casement windows, two small basement windows, and a two-pane fixed window (lights the rest room access area). There is one rear entrance at the southeast corner, it leads into the basement circulation corridor.
The kitchen equipment has been replaced as it has become worn out, but some equipment in this rear area may be original A walk-in, eight-by-six-foot ice box dates to at least the mid-1950s and is in good condition. A four-foot-long floor ice chest may also be from the same period. The most interesting feature in the rear is the original Chrysler Air Temp air conditioner in the manager's office on which the winged logo reveals its vintage.
Complementing this 1940s Diner is a red steel and neon sign announcing "29 Tastes Diner / Air Conditioned" to the passing motorist. The sign, which dates to the period of the diner's construction, forms an important ensemble with the diner. The sign consists of two separate panels, both lit by red neon tubes outlining all letters and numbers. The larger upper panel has rounded lines that are in harmony with the diner's streamlined character and reads: "29 TASTEE DINER." The lower sign is a strip that simply announces: "AIR CONDITIONING." The large metal object stands approximately twenty five feet high and is presently painted red. Until the mid-1970s the sign read "29 DINER." When the business name was changed in 1973, the sign was altered to include "TASTEE."