How does the construction cost calculator work?

You pick the plot size, the number of floors and a finish. The calculator works out the built-up area those choices give, which is the area a builder’s rate is multiplied by. It assumes each floor covers about 75% of the plot after setbacks, and it shows that assumption next to the result.

Why does the calculator show an area and not a price?

Because a price worked out from a plot size alone would be a guess. The soil, the road the plot faces, the drawings and the finishes you choose all move the figure. The calculator gives the part that can be worked out honestly, and our engineer gives the price in writing after seeing the plot.

How do I turn the built-up area into a budget?

Multiply the built-up area by a rate per sq ft for the finish you want. Published 2026 rates in Bengaluru run from about ₹1,700 to ₹3,500 per sq ft, so 2,700 sq ft works out to roughly ₹46 lakh to ₹95 lakh. Land, approvals, connections and interiors are extra.

Is the calculator free, and what happens to my number?

It is free and you can use it as often as you like without giving any details. If you send your phone number with the result, our team calls you to arrange a site visit and a written quote. We do not pass your number to anyone else.

House Construction Cost Calculator Bangalore

How to use the result

What the calculator works out

It turns your plot and your floors into built-up area: the floor you actually build, added up over every floor. Construction is priced on that area, not on the size of the plot, so it is the first number to get right.

You cannot build over the whole plot. The building rules keep open space at the front, the back and the sides, and how much depends on the plot and the road it faces. The calculator assumes each floor covers about 75% of the plot, and says so beside the result. Your sanctioned drawing sets the real figure.

From built-up area to a budget

Multiply the area by a rate per sq ft. In 2026, published rates for building a home in Bengaluru run from about ₹1,700 to ₹3,500 per sq ft of built-up area, depending on the finish, and most standard homes land between ₹2,000 and ₹2,800.

Built-up area at 75% of the plot per floor, multiplied by published 2026 market rates of ₹1,700 to ₹3,500 per sq ft. These are not our prices.
Plot and floors	Built-up area	At published market rates
30×40, G+1	1,800 sq ft	about ₹31 lakh to ₹63 lakh
30×40, G+2	2,700 sq ft	about ₹46 lakh to ₹95 lakh
30×50, G+2	3,400 sq ft	about ₹58 lakh to ₹1.19 crore
40×60, G+2	5,400 sq ft	about ₹92 lakh to ₹1.89 crore

The rates and where they come from are in our guide to construction cost per sq ft in 2026. For a 30×40 site worked through floor by floor, read what a 30×40 home costs.

What the rate leaves out

A rate per sq ft covers the building. It does not cover the land, the plan approval fees, the power and water connections, the soil test, the compound wall or the interiors, and those add lakhs, not thousands. Ask every builder to show them as separate lines.

How we set out a quote, and how payments are spread over thirteen stages, is on our construction cost page. To see how we build, go to home construction.

Home construction cost calculator

Construction cost calculator