I want to buy a flat at Kolkata and I want to know the explanation behind built up and super built up area ? ( Ashok Sen by e-mail )
OK , let me explain it step-by-step.
Carpet area is the wall-to-wall area that the occupant actually uses.
Carpet area+wall area=Built up area .
A proportionate shear of staircase area is further added to the built up area to achieve the final built up area.
Now, the super built up area is achieved by adding a percentage of the built up to it .The amount of percentage is the approximate proportionate charges of the common services . This is not a measurable quantity . The developer/builder charges 15-20 % (according to the local practice) of the final built up area .
For example :
Carpet area of a flat = 1000 sq ft.
Area of wall = 120 sq ft.
Staircase proportionate area = 30 sq ft .
Final built up area = 1000+120+30 = 1150 sq ft.
Super built up charges(20%) = 230 sq ft.
Complete area for sell of the flat =1150+230 = 1380 sq ft.