It may or may not be a real upper floor, but a second level of architecture is being added above the future Barnes & Noble bookstore at Congressional Plaza on Rockville Pike. You may remember my update from December showed a frame structure rising on the front facade.
Now there is a whole new roofline on top of that section of the strip mall, and it seems to be an attempt to match the higher floors of the Neiman Marcus last call STUDIO/new FITRow section directly adjacent to it, visually if not functionally. Having said that, anytime you have a bookstore with more than one floor, I will give you extra points for that. Also note that now the new front windows are uncovered.