Window “pop-outs” generally project out 2 inches from the face of the building.  Sometimes at the top or bottom of the window, we might have a horizontal base or header, and often these are pushed out an additional 2″ (total of 4″ off the facade).

Long horizontal accent bands which often span the length of the wall, typically have a depth of 4″.  Check the ends of the building elevations to see if this detail is drawn.  It may also be indicated in the notes.