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Preliminary estimate: two-storied VDC office

Short answer

Plinth area = 500/(1-0.30-0.10) = 833.33 m². Civil cost = 833.33 × 10,000 = Rs 8,333,333. Add 15% for water supply/sanitary/electrification and 10% other services, then 8% departmental charge on the total yields Rs 11,250,000.

Prepare a preliminary estimate of a two storied VDC's office building to get administrative approval of district development committee having carpet area 500 m². 30% of the built up area is occupied by circulation element and 10% of built up area is occupied by walls. Plinth area rate for civil work is Rs. 10,000 per m². Cost of water supply, sanitary and electrification is 15% of civil cost. Cost of other services is 10% of civil cost. Departmental charge 8% of total cost.

Plinth area

Plinth area=5001−0.30−0.10=833.33 m2\text{Plinth area} = \frac{500}{1 - 0.30 - 0.10} = 833.33\ \text{m}^2

(for the two floors together; 416.67 m² per floor.)

Estimate

ItemBasisAmount (Rs)
Civil cost833.33 x 10,0008,333,333.33
Water supply, sanitary and electrification15% of civil cost1,250,000.00
Other services10% of civil cost833,333.33
Total cost10,416,666.67
Departmental charge8% of total cost833,333.33
Total estimated cost11,250,000.00

Answer: Total estimated cost = Rs 11,250,000.00.

✓ Answer checked by Claude Opus 5.5 (high effort)

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