This modern duplex house plan gives you side-by-side 3-bed units with all the bedrooms - and the laundry - on the second floor. The left unit gives you 1,716 square feet of heated living area (884 sq. ft. on the first floor and 832 sq. ft. on the second floor). The right unit gives you 1,721 square feet of heated living (884 sq. ft. on the first floor and 837 sq. ft. on the second floor).