Prepare a preliminary estimate of a proposed building with the following data by using Plinth area method: Plinth area = 250 m², Plinth area rate of structure cost = ₹ 3500.00 per... Prepare a preliminary estimate of a proposed building with the following data by using Plinth area method: Plinth area = 250 m², Plinth area rate of structure cost = ₹ 3500.00 per m². Provide the following as a percentage on the structure cost: (i) Water supply and sanitation = 12.5%, (ii) Electrification = 7.5%, (iii) Architectural features = 2%, (iv) Unforeseen items = 2%. Prepare the detailed estimate for the following items of works from the figure No. 1 (Plan and Section): (i) Earthwork excavation, (ii) Plastering with CM (1:4) for inside walls. Read more

Steps to Solve

1. Calculate Total Building Cost

First, we need to calculate the total cost of the building. The formula is:

[ \text{Total Cost} = \text{Plinth Area} \times \text{Plinth Area Rate} ]

Given:

• Plinth area = $250 , \text{m}^2$
• Plinth area rate = ₹3,500 per m²

Now plug in the values:

[ \text{Total Cost} = 250 , \text{m}^2 \times 3,500 , \text{₹/m}^2 = ₹875,000 ]

2. Calculate Additional Costs as Percentages

Next, we will calculate the additional costs based on the total building cost.

• Water supply and sanitation: (12.5%)
• Electrification: (7.5%)
• Architectural features: (2.0%)
• Unforeseen items: (2.0%)

We'll calculate each of these costs:

• Water supply and sanitation: [ \text{Cost} = 0.125 \times 875,000 = ₹109,375 ]

• Electrification: [ \text{Cost} = 0.075 \times 875,000 = ₹65,625 ]

• Architectural features: [ \text{Cost} = 0.020 \times 875,000 = ₹17,500 ]

• Unforeseen items: [ \text{Cost} = 0.020 \times 875,000 = ₹17,500 ]

3. Calculate Total Estimate

Now sum up all costs including the initial total cost and additional costs:

[ \text{Total Estimate} = \text{Total Cost} + \text{Water Supply} + \text{Electrification} + \text{Architectural Features} + \text{Unforeseen Items} ]

Performing the sum:

[ \text{Total Estimate} = 875,000 + 109,375 + 65,625 + 17,500 + 17,500 ]

Calculating it:

[ \text{Total Estimate} = ₹1,085,000 ]