A Tuscan exterior on this duplex house plan creates great curb appeal. The unit on the left gives you 1,512 square feet of heated living space (898 square feet on the main floor and 614 square feet on the upper floor) and the right unit gives you 1,521 square feet of heated living space (891 square feet on the main floor and 63 square feet on the upper floor). Related Plan: Get an alternate exterior treatment with house plan 16912WG.