Most confusion over flat sizes comes from sellers and buyers quoting different measures. Before you compare prices, make sure you are comparing the same kind of area.
The three measures
| Measure | What it includes |
|---|---|
| Carpet area | The usable floor area inside the walls of the unit — where you could lay a carpet. |
| Built-up area | Carpet area plus the thickness of internal and external walls, and usually balconies. |
| Super (saleable) area | Built-up area plus a proportionate share of common areas — lobbies, staircases, lifts, clubhouse. |
Why the loading matters
The difference between super area and carpet area is often called the loading. It varies widely from building to building, which is why two listings “of the same size” can feel very different when you walk in.
How to compare fairly
- Ask for the carpet area stated in the sale deed or the project’s RERA registration.
- Work out the price per sq ft of carpet area, not just super area.
- Measure a couple of rooms on your visit — a laser measure costs little and settles arguments.
Our carpet vs super area calculator lets you plug in the loading for a particular building and see the true rate per usable sq ft. Every listing on this site states which area basis the owner has quoted.
