The exterior walls include roman bricks laid in a stack bond, while large floor-to-ceiling windows eliminate the boundaries between interior and exterior areas.

Glass bricks are laid one on top of the other (called laid stack bond) and not overlaid as in ordinary brick, so joint reinforcement is necessary.

Stacked bond and double rowlocks accentuate the window openings on the first and second stories, with the bricks between the window spans slightly recessed.