If you hadn’t mentioned the lack of room for interior stairs, I would be fat, dumb, and happy in my blissful ignorance! I agree, it seems logical that there should be a stairwell inside with its own exterior door, but you are probably the only person who will know there isn’t room. I wouldn’t think a building like this would have exterior stairs in real life. Will all sides be visible to the average visitor? If not, the space for interior stairs and entrance can be implied.
If you think you need stairs, then your design has a lot of interest! However, will it take something away from the Nighthawks cafe?
