Residential building built up area calculation for Contractor's Payments
Norms for Measurement of Built up Area
1) Basement - Payable Area - 100%
2) Built - up Area of each floor ( excluding , service duct , shaft , ducts, staircase , and refuge area) - Payable Area - 100%
3) Refuge area within the building perimeter - Payable area- 70%
4) Refuge area outside building perimeter ( Cantilever projection which requires staging else 50%) - Payable Area - 100%
5) Electrical duct ( 100% of slab casted only ) - Payable Area - 100%
6) Fire fighting duct ( 100% of slab casted only ) - Payable Area - 100%
7) Plumbing duct ( 100% of slab casted only ) - Payable Area - 100%
8) Lift machine room - Payable area- 100%
9) Staircase - Payable Area - 100%
10) Paving around building 20' if applicable - Payable Area - 0%
11) Lift wells - Payable Area - 50%
12) Decks - Payable area- 50%
13) Flower beds - Payable Area - 50%
14) UG/ OH tank - Payable area- 0%
15) Voids / Cut outs / Chajja/ Elevation features/ canopy - 0%
16) Double height areas ( above 4.5m up to 6.25m) - Payable area- 125%
17) Double height areas ( above 6.25m up to 9.0m) - Payable area- 150%
18) Double height areas ( above 9.0m up to 11.25m) - Payable area- 175 %
19) All areas which have a top and bottom slab but have FTF height lesser than 2.1m - Payable Area - 50%
This may vary according to builders choice
Norms for Measurement of Built up Area
1) Basement - Payable Area - 100%
2) Built - up Area of each floor ( excluding , service duct , shaft , ducts, staircase , and refuge area) - Payable Area - 100%
3) Refuge area within the building perimeter - Payable area- 70%
4) Refuge area outside building perimeter ( Cantilever projection which requires staging else 50%) - Payable Area - 100%
5) Electrical duct ( 100% of slab casted only ) - Payable Area - 100%
6) Fire fighting duct ( 100% of slab casted only ) - Payable Area - 100%
7) Plumbing duct ( 100% of slab casted only ) - Payable Area - 100%
8) Lift machine room - Payable area- 100%
9) Staircase - Payable Area - 100%
10) Paving around building 20' if applicable - Payable Area - 0%
11) Lift wells - Payable Area - 50%
12) Decks - Payable area- 50%
13) Flower beds - Payable Area - 50%
14) UG/ OH tank - Payable area- 0%
15) Voids / Cut outs / Chajja/ Elevation features/ canopy - 0%
16) Double height areas ( above 4.5m up to 6.25m) - Payable area- 125%
17) Double height areas ( above 6.25m up to 9.0m) - Payable area- 150%
18) Double height areas ( above 9.0m up to 11.25m) - Payable area- 175 %
19) All areas which have a top and bottom slab but have FTF height lesser than 2.1m - Payable Area - 50%
This may vary according to builders choice