Carpet Area vs Built-Up Area: Complete RERA Definition Guide
Prior to the enactment of the Real Estate (Regulation and Development) Act (RERA), property purchasers often struggled with ambiguous marketing jargon like 'super built-up area', leading to confusion regarding actual usable space. RERA standardized these definitions by making Carpet Area the mandatory legal metric for property pricing.
Definitions Defined Under RERA Law
- RERA Carpet Area: The net usable floor area of an apartment or villa, excluding the area covered by external walls, service shafts, exclusive balconies, and exclusive open terrace areas, but including the area covered by internal partition walls.
- Exclusive Balcony / Verandah Area: The area of the balcony or verandah that is appurtenant to the net usable floor area for the exclusive use of the allottee.
- Built-Up Area: The total area including the carpet area, the thickness of outer perimeter walls, and the exclusive balconies.
- Common Areas: Lobbies, staircases, lift shafts, clubhouses, and shared corridors across the township.
Legal Rule: Developers are legally required to quote prices and execute sale deeds strictly on the basis of RERA Carpet Area.

