480 sq ft house plan - 2 bed, 1 bath small vacation home, Duplex & multi-family plans view all collections . modifications; blog; for builders; check out ; free shipping on all house plans! login register. help center 866-787-2023. the house plan has 480 living sq ft, 2 bedrooms, and 1 bath. this retreat or tiny house is perfect as a vacation home or for empty nesters. the front porch allows for.