Carpet Area

What is Carpet Area?

Carpet area is the net usable floor space within the walls of an apartment — literally, the area where you can lay a carpet. It excludes wall thickness, balconies, terraces, and all common areas. Under the Real Estate (Regulation and Development) Act, 2016, all builders must quote prices exclusively in carpet area, making it the single most important measurement in any apartment purchase.

RERA defines carpet area precisely 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 including the area covered by the internal partition walls of the apartment.

Why It Matters for Buyers

Before RERA, builders routinely sold apartments on super built-up area, inflating the price per sqft by 25–40%. A 1,000 sqft super built-up apartment might have only 650 sqft of carpet area. By mandating carpet-area pricing, RERA eliminated this sleight of hand. Today, if a builder quotes ₹8,000/sqft on a 900 sqft carpet area apartment, you pay ₹72 lakh for 900 sqft of usable space — what you see is what you get.

Typical carpet-to-super-built-up ratios by building type:

• High-rise towers (20+ floors): 65–68% — larger lift lobbies, service floors
• Mid-rise buildings (8–15 floors): 68–72%
• Low-rise/row houses (up to 4 floors): 72–78%

How to Verify Carpet Area

Every RERA-registered project must file Form A disclosures listing the exact carpet area for each unit type. To verify:

1. Visit the state RERA portal (e.g., rera.karnataka.gov.in, maharera.mahaonline.gov.in)
2. Search the project by name or RERA registration number
3. Download the Form A disclosure document
4. Cross-check the carpet area against the builder's brochure and your sale agreement

At possession, physically measure room by room using a laser distance meter, excluding wall thickness. Total all rooms, kitchen, bathrooms, and internal corridors. The result should match the RERA-filed carpet area within ±2%. If it falls short by more than 3%, you are entitled to a proportionate price refund under RERA Section 14.

How Brickplot Uses Carpet Area in Scoring

Brickplot cross-checks the builder's advertised carpet area against the RERA Form A filing for every project in our database. A mismatch of more than 2% between advertised and RERA-filed area triggers a flag in the Governance & Approvals axis. Projects where the builder consistently understates carpet area in marketing vs. RERA filings receive a hard cap on their Brickplot Score regardless of other metrics.

Related Terms

• Built-Up Area — carpet area plus wall thickness
• Super Built-Up Area — built-up area plus proportionate common areas
• Loading Factor — ratio of super built-up to carpet area