Here's the layout for Club Frisco.
The yellow walls are interior walls. The red walls are counters, and the interior ones denote the bars, while the one at the bottom-right is the "coat check" area in the foyer. The light gray kinda cybered-up floor are the raised dancer platforms. The WCs are in the bottom left, and doors open toward the solid blue rectangle.
The stairs by the bottom-right dancer platform are the customer entrance to the VIP area, while the stairs in the dancer's locker room are the employee entrance to the VIP area.
On the second floor, it looks like the employee entrance to the VIP area is where the offices are kept, as well as a large party area. There is also a third bar on the bottom part of the map.
Let me know if anything here is unclear.