How to work out what land is worth to a developer

By Parish Rao · 18 September 2026 · 8 minute read

Ask what a plot is worth and most people quote the rate per square yard on that road. A developer never starts there. They start at the far end, with what can be built and what it will sell for, and work backwards to what the land can be worth.

Why the going rate misleads

Two plots side by side, identical size, identical road. One is worth substantially more than the other because the zoning allows an extra floor. The rate per square yard on that road describes neither of them properly.

Land for development is not priced by area. It is priced by what the area permits.

The residual method, in one line

What the finished project sells for, minus what it costs to build, minus the developer's profit, leaves what the land can be worth. Whatever is left over is the residual, and that is the answer.

Run it in that order. Everything else follows.

A worked example

A plot of 1,000 square yards. Zoning allows a floor space index of 2, so 2,000 square yards of built space, which is about 18,000 square feet.

What it sells for. Flats in that pocket sell at Rs 6,500 per square foot of saleable area. 18,000 x 6,500 = Rs 11.7 crore gross.

What it costs to build. Construction at Rs 2,000 per square foot on 18,000 square feet = Rs 3.6 crore. Add approvals, plans, fees and statutory charges, say Rs 60 lakh. Add marketing and brokerage at 4 percent of sales, about Rs 47 lakh. Add finance cost over a three year build, say Rs 90 lakh. Total cost around Rs 5.57 crore.

What the developer needs. Developers work to a margin on gross development value, commonly 18 to 22 percent for this kind of scheme. At 20 percent that is Rs 2.34 crore.

What is left for the land. 11.7 minus 5.57 minus 2.34 = Rs 3.79 crore, or about Rs 37,900 per square yard.

If the owner is asking Rs 5 crore, no developer buys, whatever the road rate says. If the owner is asking Rs 3 crore, several will.

The number that moves everything

Change the floor space index from 2 to 2.5 and the buildable area goes to 22,500 square feet. Sales rise to Rs 14.6 crore, construction to about Rs 4.5 crore. Rerun the sum and the land is worth roughly Rs 5.1 crore instead of Rs 3.79 crore.

The plot did not move. Nothing physical changed. A planning permission worth Rs 1.3 crore appeared.

This is why development land valuation begins with the zoning certificate and not with the tape measure. Any valuation that does not state the permitted floor space index has skipped the main input.

What else changes the residual

Access. Road width often governs what may be built and whether construction vehicles can reach the site. A narrow lane can cut the permitted height outright.

Shape and frontage. An awkward plot wastes buildable area in setbacks. Two plots of equal size do not yield equal floors.

Title and possession. An unclear title, a pending mutation or somebody living on the land does not reduce the value, it stops the sale. Developers walk rather than negotiate.

Time. Money spent at the start and recovered at the end costs interest. A scheme that takes five years instead of three carries a materially lower land value.

Size. Very large plots sell for less per square yard, because far fewer buyers can fund them. Owners of big plots are the ones most often disappointed by a professional valuation.

What this is not

It is not a formula that settles a price. Every input above is a judgement. What flats really sell for rather than what they are listed at. What construction costs this year in that city. What margin a developer will accept in this market.

Get one input wrong by 10 percent and the residual moves far more than 10 percent, because it is the leftover of two much larger numbers. That sensitivity is the whole difficulty of valuing development land, and it is why the working has to be shown rather than asserted.

If the plot is agricultural, a prior question comes first: can it be converted at all? That answer often outweighs everything above. Selling agricultural land raises its own issues, and this covers how land is valued generally.