The Mason façade is terra cotta, while the Sterling façade will be grayscale and metallic-looking. The original idea was to sheath Sterling in metal, but that proved too unwieldy, so now the first floor will be cast aluminum and the floors above will be a cement composite or reinforced concrete panels with a metallic finish.
Not what I was expecting. It looks good, but like grey brick. Nothing sterling. Maybe I need to see it in sunlight.
The paired window bays are recessed, so the right edge of the panel should not have an exposed seam. I thought the panels would be two windows wide to avoid seams between them. $$$ I guess.