2d cad drawings of flat plan AutoCAD software

2d cad drawings of flat plan autocad software with three floor apartment and the first floor plan with twenty  flats in a floor. each flat has one bedroom with attached bath area and small kitchen with window as well and living room. and second floor plan with same plan for first floor plan but with only tweleve flats in a floor. their is also terrace between every four flats in second floor.third floor plan is same as second floor with tweleve flats with wide passage of nine feet