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Carpet area vs built-up: what allottees are actually paying for

Adv. Joyce D'SouzaAdv. Joyce D'Souza12 Jun 2026 5 min read

Before RERA, 'area' meant whatever the brochure wanted it to mean. RERA fixed a single, buyer-friendly definition — and understanding it is the simplest way to know what you are paying for.

Carpet area, defined

Carpet area is the net usable floor area within the walls of the apartment, excluding the external walls and common areas, but including the internal partition walls. It is the number your price should be tied to.

What to check in your agreement

  • The carpet area stated in the registered agreement for sale.
  • That the price and any per-square-foot rate reference carpet area, not 'super built-up'.
  • The MahaRERA registration number, which must appear in the advertisement and agreement.
If the number in the brochure and the number in the agreement differ, the agreement wins — read it.

When the delivered area falls short of the agreed carpet area, RERA provides remedies. Raise it early, in writing.

This article is general information, not legal advice. For guidance on your specific situation, book a consultation.
Adv. Joyce D'Souza

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Adv. Joyce D'Souza

Associate — Consumer & Civil

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