Skip to main content

Total cost of apartment building

Short answer

Volume = 500 m² × 16.25 m = 8,125 m³. Construction cost at Rs3,450/m³ = Rs28,031,250. Adding 6% water, 6% sanitary, 6% electrical, 1% architecture, 2% unforeseen, 4% P.S. & contingencies (total 25%) yields Rs35,039,062.50.

The plinth area of an apartment is 500 Sq.m. Determine the total cost of building from the following data: i) Rate of construction = Rs. 3450 per m³ ii) The height of apartment = 16.25 m iii) Water supply, sanitary and electrical installations each at 6% of building cost iv) Architectural appearance @ 1% of building cost v) Unforeseen item @ 2% of building cost vi) P.S and contingencies @ 4% of building cost

Volume and building cost

Plinth area = 500 m², height = 16.25 m.

Volume=500×16.25=8,125.00 m3\text{Volume} = 500 \times 16.25 = 8,125.00\ \text{m}^3

Cost of building = 8,125.00 x 3,450 = Rs 28,031,250.00.

Additional items (percentages of building cost)

ItemPercentageAmount (Rs)
Water supply6%1,681,875.00
Sanitary installation6%1,681,875.00
Electrical installation6%1,681,875.00
Architectural appearance1%280,312.50
Unforeseen items2%560,625.00
P.S. and contingencies4%1,121,250.00
Total additions25%7,007,812.50

Answer: Total cost = 28,031,250.00 + 7,007,812.50 = Rs 35,039,062.50.

✓ Answer checked by Claude Opus 5.5 (high effort)

All Estimating and Costing chapter 3 questions →