Purely speculation, but I imagine that this is a restaurant, which is an A-2 use. However, as the space is small, and given OLF of 200gross for the kitchen and 15net for unconcentrated table and chair dining area, that the total OL is 21. With an OL of 21,
303.1.2 #1 will get the space classified as a B use.
303.1.2 Small Assembly Spaces
The following rooms and spaces shall not be classified as Assembly occupancies:
- A room or space used for assembly purposes with an occupant load of less than 50 persons and accessory to another occupancy shall be classified as a Group B occupancy or as part of that occupancy.
- A room or space used for assembly purposes that is less than 750 square feet (70 m2) in area and accessory to another occupancy shall be classified as a Group B occupancy or as part of that occupancy.