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Carpet Area, Super Area and Extra Charges Disputes With Builders

Under RERA, a flat must be priced on carpet area: the net usable floor area inside the walls of the apartment. If the carpet area delivered is less than what you paid for, the builder must refund the difference with interest. If it is more, the builder can charge only for an increase of up to 3%, at the agreed rate. Extra charges added at possession are payable only if the agreement disclosed them, the law allows them, and they reflect real costs.

By Advocate B.K. SinghUpdated About 19 minutes to readTopic: Real Estate and RERA

In short. RERA requires flats to be sold on carpet area, defined in section 2(k), and UP RERA said in January 2024 that super area has no basis in the Act. Under the prescribed agreement, a shortfall is refunded within 45 days with interest and only a 3% increase can be charged. Undisclosed or unlawful extra charges can be challenged before RERA or a consumer commission.

The final demand letter that comes with the offer of possession is where many flat purchases go wrong. The super area has grown by 80 sq ft, there is a new line for electrification, the club membership has been revised, two years of maintenance are payable in advance, and the GST has been recalculated. The buyer is told to pay within 30 days or interest will run and the flat will not be handed over.

This post is about that letter and the measurements behind it: how area is defined and checked, what the law says when the area changes, and which extra charges stand up. For the clauses in the agreement that builders use to justify these demands, see our post on one-sided builder buyer agreement clauses. For the broader picture of homebuyer disputes, see our real estate law page.

Carpet area defined
Section 2(k), RERA 2016
Basis of sale
Carpet area only; UP RERA direction of January 2024
Area shortfall
Refund within 45 days with interest (prescribed format)
Area increase
Chargeable only up to 3%, at the agreed rate per sq ft
Open parking
A common area; cannot be sold (s.2(n) RERA)
Holding charges
Not payable (Supreme Court, Capital Greens appeals, 2020)

What is the difference between carpet area, built-up area and super area?

Carpet area is the space you can actually use inside the flat. Section 2(k) of RERA defines it as the net usable floor area of an apartment, excluding the area covered by the external walls, areas under service shafts, exclusive balcony or verandah area and exclusive open terrace area, but including the area covered by the internal partition walls. Put simply, measure each room wall to wall, include the thickness of internal walls, and leave out balconies, terraces, shafts and the outer walls.

Built-up area, in common usage, is the carpet area plus the external walls and usually the balconies. It has no definition in RERA. Super area, also called super built-up area or saleable area, is the built-up area plus a proportionate share of the common areas: lobbies, staircases, lift wells, corridors, the clubhouse, guard rooms, sometimes even the boundary wall. The ratio between super area and carpet area is called loading, and in Delhi NCR projects it has commonly been between 25% and 40%.

The problem with super area was never the concept; it was that nobody outside the builder's office could check it. Two flats with the same super area in different projects could have very different usable space, and the super area could be revised at possession without any verifiable basis. RERA was written to stop that.

Can a builder still sell a flat on super area?

Not for a project registered under RERA. The Act requires the promoter to disclose the carpet area when registering the project, and the prescribed agreement for sale prices the apartment on carpet area. Balcony and terrace areas are stated separately. In January 2024, UP RERA directed all developers in the state to sell residential units only on carpet area, observing that super area has no definition or basis in the Act and that sale on super area is contrary to it.

Some builders still print a super area figure in brochures, price lists or the allotment letter, alongside the carpet area. That is not unlawful in itself as information, but the price must be calculated on carpet area. If your agreement for a registered project shows the price per sq ft of super area, keep a copy of it. It will matter if the area or price is later disputed.

Agreements signed before RERA in older projects were usually on super area, and those agreements still govern the price. The disputes in those projects are about whether the super area was revised fairly and whether the carpet area delivered is reasonable for the price paid. Both are discussed below.

Area terms and where they stand legally

TermWhat it includesLegal status
Carpet areaUsable floor area inside the flat, including internal partition wallsDefined in s.2(k) RERA; the basis on which a registered project must be sold
Exclusive balcony or verandah areaBalcony for the exclusive use of the flatDefined in RERA; disclosed separately, not part of carpet area
Exclusive open terrace areaOpen terrace for the exclusive use of the flatDefined in RERA; disclosed separately
Built-up areaCarpet area plus external walls and usually balconiesNo statutory definition; descriptive only
Super area or saleable areaBuilt-up area plus a share of common areasNo basis in RERA; still found in pre-RERA agreements
Common areasLobbies, staircases, lifts, open parking, community facilities and so onDefined in s.2(n) RERA; belong to the association of allottees

How do you check the carpet area you actually got?

Measure it, and measure it the way the Act defines it. Take the internal dimensions of every room, the kitchen, bathrooms, passages and stores, add the area under the internal partition walls, and exclude balconies, shafts and the external walls. An architect or a surveyor can do this in a couple of hours and give a signed measurement sheet with a drawing. For a dispute, that sheet is worth far more than your own tape measurements.

Then compare three figures: the carpet area stated in the agreement, the carpet area for that unit type in the project's RERA registration, and the area shown for the flat in the sanctioned building plan. The builder's final demand and the conveyance deed should state the same carpet area. If they do not, ask for the architect's certificate of the final carpet area that the builder relies on.

Do this before you pay the final demand, if you can. Once the conveyance deed is registered with an area written in it, the builder will argue that you accepted the area. That argument is not conclusive, but it is an argument you do not need to give it.

What if the carpet area at possession is less than promised?

For a registered project, the prescribed agreement format answers this directly. Under the Uttar Pradesh agreement for sale rules of 2018, the promoter must confirm the final carpet area after construction, once the completion or occupancy certificate is granted, giving details of any change. If the carpet area has reduced, the promoter must refund the excess paid within 45 days, with annual interest at the prescribed rate from the date the excess was paid. Other states' formats follow the same model with local changes.

The refund is calculated at the same rate per sq ft agreed in the agreement, so the arithmetic is simple. If you paid for 1,100 sq ft at ₹6,000 per sq ft and got 1,060 sq ft, the excess is ₹2,40,000 plus interest. If the builder has instead adjusted the shortfall at some lower rate, or not at all, that is the dispute.

For older projects sold on super area, a smaller carpet area is harder to quantify because the agreement never promised a carpet figure. The argument is usually built on the brochure, the layout plan shown at booking and the sanctioned plan. Where the builder delivered noticeably less usable space than the plan showed, consumer commissions have treated it as a deficiency in service and ordered proportionate refunds. A large shortfall can also support a refund of the entire amount if the flat is materially different from what was sold.

Can the builder charge more if the area goes up?

Only within limits. The prescribed agreement format allows the promoter to demand payment for an increase in carpet area of not more than 3%, at the same rate per sq ft as agreed, and only at the next milestone in the payment plan. An increase beyond 3% cannot be loaded on the buyer under that clause. The logic is that the buyer agreed to buy a flat of a certain size, and a builder should not be able to expand it and send the bill.

In pre-RERA projects, the common complaint is an increase in super area announced at possession, often by 5% to 10%, with no change in the flat itself. The builder's usual explanation is that common areas or facilities were increased. Buyers are entitled to ask what changed, where it is shown in the revised sanctioned plan, and how the increase was distributed among the flats. A demand that cannot be supported by the plans is open to challenge.

Where Advocate B.K. Singh is asked to look at a super area increase, he asks the builder for three things before anything else: the sanctioned plan at the time of booking, the revised sanctioned plan, and the architect's area statement showing how common areas were apportioned. Builders who have a genuine basis can produce these. Builders who cannot usually settle the point.

Extra charges at possession: which ones hold up

This is the general position. Your agreement, the state rules and the facts of your project can change the answer for a particular charge.

ChargeUsually payable whenOpen to challenge when
Covered or garage parkingPriced and disclosed at booking, for a covered or enclosed spaceCharged for open or uncovered parking, or added after booking
Preferential location charges (PLC)Disclosed at booking for a specific feature: park facing, corner, higher floorThe feature is lost because of a layout change, or PLC was never agreed
Club membershipAgreed in the price list and the club is built and operationalThe club is not built, or the charge is revised upward at possession
Interest-free maintenance security (IFMS)Agreed, and held for transfer to the association with accountsExcessive, or kept by the builder after the association takes over
Advance maintenanceAfter a valid possession offer with the occupancy certificateDemanded before the occupancy certificate, or for an unreasonable period in advance
EDC and IDC enhancement (Haryana)The government actually raised the charge and the agreement passes it onNo proof of the government demand, or the increase came after the promised completion date
Electrification and power backupAgreed and supported by actual costCharged at arbitrary rates or for connections the buyer must pay for again
GSTOn instalments for an under-construction flat at the notified rateHigher tax that arose only because of the builder's delay, or input credit benefit not passed on
Holding chargesNeverAlways; the Supreme Court has held they are not payable
Interest on delayed instalmentsAt the rate equal to the builder's own delay rateAt a higher, one-sided rate, or on amounts that were themselves disputed

Car parking: open, stilt and covered

Open parking cannot be sold. Section 2(n) of RERA includes open parking areas within common areas, which belong to all the allottees. Section 2(y) defines a garage as a place within a project with a roof and walls on three sides, and expressly excludes unenclosed or uncovered parking spaces such as open parking areas. The Uttar Pradesh agreement format records open parking slots as allocated free of cost, subject to ratification by the residents' association.

Covered and garage parking is a different matter. The UP format treats the apartment with its garage or covered parking as a single indivisible unit, which means the price of a covered space can be part of the deal. In the Capital Greens appeals of 2020, the Supreme Court set aside an NCDRC direction to refund car parking and club charges because they had been agreed. If a covered parking charge was clearly priced at booking, a later complaint about it is unlikely to succeed.

Stilt parking has a longer history. In Nahalchand Laloochand v Panchali Co-operative Housing Society (2010), decided under the Maharashtra flats law, the Supreme Court held that stilt parking is part of the common areas and cannot be sold as a separate flat or garage. Whether a stilt space in a Delhi NCR project is a garage or a common area depends on how it is enclosed and on the sanctioned plan, so look at the plan before you pay or complain.

PLC, club membership, IFMS and maintenance

Preferential location charges are paid for a feature: a park view, a corner unit, a higher floor, a road-facing position. If the builder later changes the layout so that the park becomes a tower or the corner unit is no longer a corner, the buyer is paying for something he did not get. Consumer commissions have ordered refund of PLC with interest in such cases. Keep the layout plan shown at booking; it is the evidence.

Club membership charges are payable if the club exists. If it is still a slab of concrete at possession, ask in writing for the charge to be deferred until the club is complete and running. Interest-free maintenance security is a deposit, not income. When the residents' association takes over maintenance, the deposit should be transferred with accounts, and the question of who holds it is one of the most common disputes in new societies; our post on RWA and maintenance disputes in apartments takes that further.

Advance maintenance is payable once a valid offer of possession is made, which requires the occupancy or completion certificate. Under section 11(4)(g) of RERA, the promoter bears the outgoings until it transfers physical possession. The NCDRC has held that a builder cannot levy maintenance charges on buyers before obtaining the occupancy certificate. A demand for two or three years of maintenance in advance, at possession, is commonly reduced or spread out when challenged.

EDC, IDC, GST and cost escalation demands

The model agreement format describes the total price as escalation-free, except for increases in development charges and other charges levied by the competent authority. When the builder raises such a demand, it must enclose the notification or order that imposed the increase. If the increase came after the scheduled date of completion, the format says it shall not be charged to the allottee, because the buyer should not pay for the cost of the builder's delay.

External and internal development charges are a frequent issue in Haryana projects. A builder can pass on an enhancement only if the agreement allows it, the government actually demanded it, and it is apportioned correctly. Ask for the government's demand letter and proof of payment. Builders sometimes collected enhanced EDC from buyers and did not pay it to the government, which later caused problems for everyone in the project.

GST applies to instalments for an under-construction flat at the rate notified for that category, and does not apply to a flat sold after the completion certificate. Disputes arise when GST replaced the earlier service tax and VAT in July 2017 and builders charged GST on instalments that were due earlier but billed later. Some RERA authorities have held that tax increases arising only because of the builder's delay must be borne by the builder. Check the dates of each demand against the payment plan.

Holding charges and interest on disputed demands

Holding charges are a fee some builders levy if the buyer does not take possession within a set time after the offer. The NCDRC held in the Capital Greens matter that holding charges are not payable, and the Supreme Court upheld that finding in 2020. RERA authorities have followed it consistently. If your final demand includes holding charges, it is wrong on its face.

Interest for late payment of the final demand is a harder question. If the demand is correct and you do not pay, the builder can charge interest at the rate the agreement and the rules allow, which for registered projects equals the rate the builder pays for its own delay. If the demand is wrong, interest on the wrong part is equally wrong. That is why it matters to dispute in writing, quickly and specifically, rather than simply not paying.

The practical choice many buyers face is between paying under protest to get the keys, and refusing to pay and risking months of delay and interest. Paying the undisputed part, paying the disputed part under written protest and then filing a complaint for refund is often the safest course, especially for buyers paying rent and EMI at the same time.

How to dispute an area or extra-charge demand at possession

Most of these disputes are won or lost on paper in the 30 days after the final demand arrives.

  1. Get the full final statement

    Ask for an itemised statement of account showing the price, every charge, every payment received, interest charged both ways and the basis of each new item. A one-line total is not enough.

  2. Measure the flat

    Have an architect measure the carpet area as defined in section 2(k) and give a signed sheet with a drawing. Compare it with the agreement, the RERA registration and the sanctioned plan.

  3. Ask for the documents behind each charge

    For an area increase, the revised sanctioned plan and area statement. For EDC or similar, the government demand and proof of payment. For maintenance, the occupancy certificate. Ask in writing.

  4. Write a specific objection

    List each disputed item, why it is disputed and what figure you accept. Ask for a revised statement within a fixed time. A general complaint that charges are too high achieves little.

  5. Pay the undisputed amount

    Pay what you accept, so the builder cannot say you are in default for the whole demand. If you must pay the disputed part to get possession, pay it with a covering letter saying it is paid under protest and without prejudice to your claim.

  6. Take possession carefully

    Inspect, record defects in writing, and do not sign a no-claims or full and final settlement document without a written protest. Keep photographs and the handover documents.

  7. File the complaint

    If the builder does not correct the demand, file a complaint before the state RERA authority or a consumer commission for refund of the excess with interest. Do it within the limitation period for the forum you choose.

Our post on filing a RERA complaint in Delhi, UP and Haryana explains the process, and our post on the two-year limit for consumer complaints covers the deadline if you choose a consumer commission.

Documents you need for an area or charges dispute

From booking

  • Application form and allotment letter
  • Price list and payment plan given at booking
  • Brochure and layout plan shown to you
  • Builder buyer agreement or agreement for sale with annexures

From the project

  • RERA registration page showing carpet areas by unit type
  • Sanctioned building plan and any revised plan
  • Occupancy or completion certificate
  • Any notice to buyers about changes in plans or area

From possession

  • Offer of possession letter and final demand
  • Itemised statement of account
  • Architect's measurement sheet for your flat
  • Any demand for EDC, IDC or similar, with the government order relied on

Your payments and letters

  • All receipts and bank statements
  • Your written objections and the builder's replies
  • Letters paying amounts under protest
  • Handover documents and defect lists

A made-up example: the Noida flat that grew on paper

Here's a made-up example. Arun bought a flat in a Noida project in 2014, on a super area of 1,450 sq ft at ₹4,500 per sq ft, with ₹1.5 lakh PLC for a park-facing unit and ₹2.5 lakh for covered parking. The project was still ongoing when RERA came in and was registered with UP RERA, which disclosed a carpet area of 960 sq ft for his unit type.

In 2025 he gets the offer of possession. The super area is now 1,540 sq ft, so the demand includes ₹4.05 lakh for the extra 90 sq ft. There is also ₹1.2 lakh for 24 months' advance maintenance, ₹60,000 electrification, and holding charges that will start in 60 days. The park in front of his tower has been reduced to make room for a second clubhouse.

Arun's architect measures the carpet area at 948 sq ft, less than the 960 disclosed. Arun writes to the builder disputing the super area increase and asking for the revised sanctioned plan and area statement, disputing the holding charges as unlawful, asking for maintenance to be limited to a reasonable period after possession, and asking for PLC to be refunded because the park view is substantially lost. He pays the undisputed balance and the covered parking, and pays the rest under protest so he can move in.

On facts like these, a RERA authority would typically strike out the holding charges, examine the super area increase against the plans, and look closely at the PLC claim given the layout change. The carpet area shortfall supports a refund at the agreed rate. Arun keeps living in the flat while the case runs.

RERA, consumer commission or civil court?

For a registered project, the state RERA authority is usually the natural forum for area and charges disputes, because the claim rests directly on the Act, the rules and the prescribed agreement. A complaint under section 31 can seek refund of excess charges, interest and a direction to correct the conveyance deed. Compensation is decided by the adjudicating officer under section 71.

A consumer commission is equally available, as the Supreme Court confirmed in Newtech Promoters (2021). The value of the flat paid for decides which commission hears it: up to ₹50 lakh in the District Commission, above that up to ₹2 crore in the State Commission, and above ₹2 crore in the NCDRC. For a dispute where the main problem is overcharging rather than delay, a consumer complaint can be quicker in some districts. Our consumer court practice in Delhi covers how builder complaints run there.

Civil courts are rarely the right place. Section 79 of RERA bars civil courts from matters the RERA authority or adjudicating officer can decide. The one recurring civil dispute is between buyers and the residents' association over common areas after handover, which can raise title and property questions outside RERA.

Mistakes buyers make with area and charges

  • Paying the whole demand without a word. Silence and full payment will be presented as acceptance. A one-page letter recording the dispute keeps the claim alive.
  • Refusing to pay anything. Withholding the entire amount, including what is clearly due, gives the builder a default to point to and can delay possession for months.
  • Not measuring before registration. Once a conveyance deed with a stated area is registered, the argument is harder. Measure first.
  • Relying on the brochure alone. Brochures carry disclaimers. The sanctioned plan, the RERA registration and the agreement are the documents forums rely on.
  • Mixing area disputes with defects. Seepage, cracks and fittings are a separate structural defect claim under section 14(3) of RERA. Keep them in the same complaint if you like, but argue them separately.
  • Ignoring stamp duty. The conveyance deed's value and area affect stamp duty. Our post on stamp duty and registration in Delhi and UP explains how that is calculated.

What to do this week if you have a final demand

  • Ask the builder in writing for an itemised statement of account and the basis of every new charge.
  • Book an architect to measure the carpet area of the flat.
  • Download the RERA registration page for the project and note the carpet area for your unit type.
  • Find the price list, payment plan and layout plan you were given at booking.
  • Mark holding charges, open parking charges and maintenance before the occupancy certificate as disputed.
  • Work out the amount you accept and the amount you dispute.
  • Pay the undisputed amount before the due date and record the dispute in writing.
  • Note the date of the final demand; your limitation clock may start from it.

Having the final demand checked

Area and charges disputes are arithmetic backed by documents, and the builder holds most of the documents. The work is in asking for the right papers, reading the plans and putting a precise figure on the overcharge. Many such disputes end once the builder sees that the buyer has done that work.

If you want an advocate to go through your final demand before you pay, the team of Advocate B.K. Singh at B.K. Singh & Associates can review the statement, the plans and the agreement and tell you what is worth disputing. Send the papers through our online enquiry, or read more about our consumer law practice.

Frequently asked questions

What is carpet area as per RERA?

Section 2(k) of RERA defines carpet area as the net usable floor area of an apartment, excluding external walls, service shafts, exclusive balconies or verandahs and exclusive open terraces, but including internal partition walls. It is the space you can actually use inside the flat.

Is selling a flat on super area illegal?

For a RERA registered project, the price must be on carpet area. UP RERA directed in January 2024 that units be sold only on carpet area, saying super area has no basis in the Act. Older agreements signed on super area still govern those sales.

What is a normal loading on super area?

In Delhi NCR projects sold on super area, loading has commonly been between 25% and 40% over carpet area. A high loading is not unlawful in itself in an old agreement, but an unexplained increase at possession can be challenged.

Builder reduced carpet area, can I get a refund?

Yes. Under the prescribed agreement format, the builder must refund the excess within 45 days with interest at the prescribed rate, calculated at the agreed rate per sq ft. If it does not, a RERA or consumer complaint can seek the refund.

Can a builder charge for increased carpet area?

Only for an increase of up to 3%, at the agreed rate per sq ft, and at the next payment milestone, under the prescribed agreement format. Increases beyond that cannot be loaded on the buyer under that clause.

Can the builder sell open car parking?

No. Open parking is a common area under section 2(n) of RERA and the definition of garage in section 2(y) excludes it. Covered or garage parking can be priced if it was disclosed at booking.

Are holding charges legal?

No. The NCDRC held in the Capital Greens matter that holding charges are not payable, and the Supreme Court upheld that in 2020. If your demand includes them, dispute them in writing.

Can a builder charge maintenance before the occupancy certificate?

The NCDRC has held that a builder cannot levy maintenance on buyers before obtaining the occupancy certificate. Under section 11(4)(g) of RERA, the promoter bears outgoings until physical possession is transferred.

Do I have to pay increased EDC demanded by the builder?

Only if the agreement passes it on, the government actually raised it and the builder shows the order and its apportionment. An increase imposed after the promised completion date generally should not be charged to the buyer under the model format.

Can I get PLC refunded if the park view is gone?

Consumer commissions have ordered refund of PLC with interest where a layout change took away the feature the buyer paid for. Keep the layout plan you were shown at booking as evidence.

Should I pay the disputed amount to get possession?

Often the safest course is to pay the undisputed amount, pay the disputed part under written protest if you need the keys, and then claim a refund. Refusing all payment can delay possession and add interest.

Where do I complain about extra charges by a builder?

To the state RERA authority for a registered project, or to a consumer commission chosen by the value paid. Civil courts are barred by section 79 of RERA from matters the RERA authority can decide.

Advocate B.K. Singh

Written and reviewed at B.K. Singh & Associates

Advocate B.K. Singh

Founder of B.K. Singh & Associates. MCA, LL.B., LL.M., with more than twenty years of practice before the Supreme Court, the Delhi High Court, district courts and tribunals across Delhi NCR. This article explains the general law as of 24 October 2026; it is not legal advice on your facts.

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