What is carpet area under RERA?
Carpet area is a flat’s net usable floor area under RERA: it leaves out external walls, service shafts, exclusive balconies and open terraces, but counts internal walls.
Also called RERA carpet area, net usable area.
Section 2(k) of the Real Estate (Regulation and Development) Act, 2016 defines carpet area as “the net usable floor area of an apartment, excluding the area covered by the external walls, areas under services shafts, exclusive balcony or verandah area and exclusive open terrace area, but includes the area covered by the internal partition walls of the apartment”.
| Included | Excluded |
|---|---|
| Rooms, kitchen, toilets | External walls |
| Internal partition walls | Service shafts |
| Space inside the flat you can use | Exclusive balcony or verandah |
| Exclusive open terrace |
A project’s RERA registration discloses the number, type and carpet area of its apartments (section 4(2)(h)), which is why carpet area, not super built-up area, is the figure buyers can compare across projects. Balconies and terraces are usually listed separately on the cost sheet.
Source, read on 29 Oct 2026: the Act (Gazette copy hosted by MahaRERA).