RERA carpet area is the net usable floor area of an apartment under India’s RERA rules. It includes the internal usable space inside the flat, including internal partition walls, and excludes external walls, service shafts, exclusive balconies/verandahs, and exclusive open terraces.

Quick meaning

In simple terms, it is the area you can actually use inside the home, not the full area shown in marketing brochures.

What is included

  • Bedrooms, living room, kitchen, bathrooms, and other usable internal spaces.
  • Internal partition walls.

What is excluded

  • External walls.
  • Service shafts.
  • Exclusive balcony or verandah area.
  • Exclusive open terrace area.

Why it matters

Builders are required to disclose and sell homes using RERA carpet area, which helps buyers compare properties more transparently and avoid misleading size claims.

If you want, I can also give you a simple example of how to calculate it or explain the difference between carpet area, built-up area, and super built-up area.