New Building Layout Help

[redBaron]

We're building a new 2 window drive-up coffee shop. We have pretty much settled on 10' wide x 25' long, but we have some flexibility on size and would appreciate input on this. Also, I've been told that the espresso machine should be no more than 1 step away from the employee at each window, and this is why we altered our original plans from 12' wide to 10'.

Are there any layout plans on this site?

Lastly, since our restroom will be for employees only, does it need to be ADA compliant?