Built-up area of the flat plus the proportionate area of the stair case, including landings, lift, lobby and passage on each floor and common servant toilet on each floor distributed among all the flats and the floor in proportion of the built-up area.
This includes the built-up area along with the area under common spaces such as the lobby, lifts, stairs etc. This term is therefore only applicable in the case of multi-dwelling units.
The difference between carpet area and the built up area is very simple to understand. Normally the area available to spread a carpet a in the flat is considered as carpet area, whereas the space occupied by the walls is also considered in calculating built-up area. The space occupied by Gardens, Swimming Pool and other unoccupied space is also considered for calculating the super built up area. Normally the measurement is carried out considering 15% more for built up area and 30 - 40% more for super built- up area. The stamp duty should be paid on the carpet area and not on other areas.