Super Built-up Area Calculator
Calculate super built-up area from built-up area and a common-amenities share.
About this calculator
Most Indian developers price apartments against super built-up area, a figure that includes not just your own unit's walls but a proportionate slice of the building's shared lobbies, staircases, clubhouse and other common amenities, which is exactly why the per-square-foot rate on a listing often looks smaller than what you'd calculate from the unit's actual usable space. This calculator multiplies a known built-up area by one plus a common-area share percentage to estimate that final super built-up figure. Enter built-up area and the amenities share percentage from your project's disclosure, or a typical 15-25% if unavailable, to see the number your price-per-square-foot is likely being calculated against. Because larger, more amenity-rich developments carry a higher common-area share than a simple standalone building, use the project-specific disclosed figure whenever you have access to it rather than a generic assumption for an accurate comparison across listings.
Worked example
1,150 sqft built-up area at 20% common share
Result: Super built-up area = 1,380 sqft
Was this helpful?