How to calculate plot area from survey measurements

From boundary dimensions to a reliable area figure — here is how plot area is worked out and checked.

Survey Sketches · 5 min read · By SANAD Team

Calculating a plot’s area sounds simple for a rectangle but gets tricky for irregular parcels. Knowing the basics helps you sanity-check a surveyor’s figure.

Regular plots

For a rectangular plot, area is length × breadth. Confirm the dimensions match the sketch and the record before trusting the result.

Irregular plots

Irregular shapes are split into triangles/trapezoids and summed, which is why a licensed surveyor’s measured sketch is the reliable source for anything non-rectangular.

Frequently asked questions

Why does my calculated area differ from the RTC?

Ground shape, unit conversion or record errors can cause differences. A survey reconciles them; large gaps deserve investigation.

_This article is for general educational purposes and is not legal advice. Government rules, fees, forms and portal features change over time — always verify the latest requirements with the relevant Karnataka government department or a qualified professional before acting._

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