Why carpet area matters
For years, Indian buyers were quoted prices per square foot of "super built-up area", a number that included walls, balconies and a share of lobbies, lifts and clubhouse. Two flats advertised as 1,500 sq ft could offer very different amounts of usable room. The Real Estate (Regulation and Development) Act, 2016 changed this by requiring that apartments be sold on the basis of carpet area.
That makes RERA carpet area verification one of the most valuable checks a buyer in Hyderabad can do before taking possession. This article explains the terms, shows you how to measure, and outlines what to do if the numbers do not match.
Carpet area, built-up area and super built-up area
| Term | What it includes | Typically used for |
|---|---|---|
| Carpet area (RERA) | Net usable area inside the apartment, including internal partition walls; excludes external walls, service shafts, exclusive balcony/verandah and exclusive open terrace | Legal basis of sale under RERA |
| Built-up area | Carpet area plus thickness of walls, plus balcony and terrace attached to the unit | Older sale practice, property tax references |
| Super built-up area | Built-up area plus a proportionate share of common areas such as lobby, staircase, lifts, and amenities | Marketing and older pricing quotes |
The difference between carpet and super built-up area is called the loading. In many Hyderabad gated communities with large clubhouses and amenities, loading is often substantial, commonly somewhere in the range of 25 to 40 percent over carpet area. That is why the carpet area is the number that tells you how much space you can really use.
What RERA says about area
- RERA requires promoters to disclose the carpet area of each apartment in the agreement for sale and to charge on that basis.
- The definition of carpet area in the Act excludes exclusive balconies and open terraces, so these are typically shown and priced separately.
- If the carpet area delivered is less than what the agreement states, the buyer may be entitled to a proportionate reduction in price, and the Act also provides for compensation and refund remedies in specified circumstances.
- Agreements commonly allow a small tolerance for area variation, often cited as around 3 percent. Check your agreement for the exact figure and how the excess or shortfall is settled.
This is general information, not legal advice. Telangana RERA rules and your specific agreement govern your rights, so consult a RERA-experienced lawyer for a dispute.
How to do RERA carpet area verification
Step 1: collect the right numbers
From your agreement of sale and its annexures, note the stated carpet area, the balcony or utility area (if separate), and the super built-up area. Ask the builder for the sanctioned floor plan with dimensions.
Step 2: measure each room
Use a laser distance meter or a steel tape. Measure wall-to-wall (finished surface to finished surface) for each room: living, dining, bedrooms, kitchen, bathrooms and passages. Multiply length by width for each rectangular space and add them up. For L-shaped rooms, split into rectangles.
Step 3: handle the grey zones
- Internal partition walls: included in the RERA carpet area, so their thickness should be added in.
- Bathroom and kitchen: these count as part of carpet area.
- Balcony and utility: exclude from carpet area unless your agreement lists them as part of the unit's carpet.
- Shafts and ducts: exclude service shafts and ducts that sit inside the flat boundary.
Step 4: compare
Add up your measured area and compare it with the agreement. Small differences of a few square feet are common because of finishing thickness and measurement technique. A gap of several percent deserves a formal, written query to the builder.
A worked example
Suppose your agreement says 1,200 sq ft carpet area and you paid for it at an all-in rate. You measure the rooms and total 1,140 sq ft, a shortfall of 60 sq ft or 5 percent. If your agreement allows around 3 percent variation, the first 36 sq ft of difference may fall within tolerance, but the balance deserves a written query and a proportionate price adjustment under the terms of your agreement. The point is not to fight over every square inch; it is to know the number before you pay the last instalment.
Also compare price per sq ft on carpet area, not super built-up area. A flat quoted at a lower rate on a larger super built-up figure can work out costlier per usable square foot than a compact, efficiently planned unit.
Common reasons the numbers do not match
- The builder is quoting built-up or super built-up area where the buyer assumed carpet.
- Walls built thicker than planned, or columns protruding into rooms, reducing usable space.
- Changes to the layout during construction without a revised plan.
- Balcony or terrace area bundled into the "carpet" figure.
- Measurement taken to the centre of walls instead of the finished face.
What to do if the carpet area is short
- Document your measurement with a room-wise sketch and photos of the laser meter readings.
- Write to the builder, citing the agreement clause and the measured shortfall.
- Ask for the architect-certified as-built plan.
- Do not sign the possession letter or make the final payment before the question is clarified, or ensure your objection is recorded in writing.
- If the builder does not respond, you can approach the Telangana RERA authority. A lawyer can advise on the right forum and the remedies available.
Why independent RERA carpet area verification helps
Many buyers measure with a household tape and cannot be sure of the result, and builders may disagree with it. An independent measurement by engineers using a laser instrument and a clear room-wise report is far harder to dismiss. If you want a verified figure to put in front of the builder, see our carpet area verification service or book a visit. You can also pair it with a full pre-handover inspection so defects and area are checked together.