In short (2026)
The brochure governs nothing. What you are buying is defined by the document you sign and register, which is the Agreement for Sale, and then the Sale Deed; the brochure is marketing material. Between the brochure and the RERA filing, the RERA filing wins, because it is the promoter's declaration to the regulator, filed on an affidavit and against the sanctioned plan, and because Section 89 of the Real Estate (Regulation and Development) Act 2016 gives the Act an overriding effect over anything inconsistent with it. A brochure can still cost the builder money: under Section 12, if you paid an advance relying on a false or incorrect statement in an advertisement or prospectus, you are entitled to compensation, and if you choose to withdraw, to a full refund with interest. But it cannot enlarge what the RERA-registered project and your registered agreement actually give you. In most cases the "different area" is not a discrepancy at all, it is a brochure quoting super built-up area against a RERA filing that must, by law, state carpet area (Section 2(k)). Reconcile the two before you sign, insist that your Agreement for Sale states the RERA carpet area in writing, and match any land-extent figure against the sanctioned layout and the land's title chain, never the brochure.
Which document actually decides what you are buying?
Three documents are in play, and they carry three very different legal weights.
The brochure is an advertisement. It exists to sell, and RERA treats it as such: Section 11(2) requires that every advertisement and prospectus prominently display the project's RERA registration number and the authority's website, precisely so a buyer can go past the marketing and read the registered particulars. MahaRERA has enforced this hard: its Order No. 46/2023 dated 29 May 2023 requires every project advertisement published from 1 August 2023, brochures expressly included, to carry the project QR code beside the registration number and the authority's website, and it penalises promoters who do not comply (for example Suo Motu Advertisement Case No. 43 of 2024, order dated 3 April 2024), so a buyer is pushed to the registered record rather than the marketing copy. A brochure creates no ownership and defines no boundary. Its only legal bite runs the other way, against the builder, under Section 12.
The RERA filing is the promoter's account of the project given to the regulator. To register a project the promoter files declarations under Section 4, including an affidavit that he has legal title to the land under Section 4(2)(l)(A), and discloses the sanctioned plan, the layout, and the carpet areas of the apartments. This is the authoritative, sworn version of the project. It is not a title guarantee, but it is the version the promoter has sworn to before the regulator and the version every other document must conform to.
The Agreement for Sale, once registered, is the contract that binds what you personally are buying: your apartment, its carpet area, your share in the common areas, the price, and the delivery date. Section 13 forbids a promoter from taking more than ten per cent of the cost as advance before a written, registered Agreement for Sale is in place, which is the law's way of saying that the agreement, not the brochure or the allotment letter, is the document your money attaches to. The Sale Deed that follows conveys the property, and its Schedule, with the boundaries and extent, is what actually transfers.
So the hierarchy is settled before you even open the brochure: what you buy is fixed by your registered agreement and deed; the RERA filing is the sworn, sanctioned-plan-backed reality of the project that your agreement must match; the brochure is a claim you can hold the builder to in money, not in title.
Carpet area vs super built-up: the most common reason the two numbers differ
Before assuming fraud, check whether the two documents are even measuring the same thing. They usually are not.
RERA changed the unit of sale. Section 2(k) defines "carpet area" as the net usable floor area of an apartment, excluding the area covered by external walls, service shafts, the exclusive balcony or verandah, and the exclusive open terrace, but including the area covered by internal partition walls. Since RERA came into force, an apartment must be sold and priced on carpet area. Super built-up area, the older marketing figure, loads the carpet area with a share of lobbies, staircases, lift shafts, and amenities, and typically runs twenty-five to forty per cent higher.
That is why a glossy brochure printed on the older convention can say 1,450 square feet while the RERA filing for the very same flat says around 1,050 square feet carpet. Nothing has shrunk. You are looking at two different measures of one apartment. This is not a title problem and not, by itself, a RERA breach; it is a units mismatch you must resolve on paper. Ask for the carpet area figure that appears in the RERA registration, confirm your Agreement for Sale states that same carpet-area number and not a super built-up number, and treat the price you are quoted as a price per carpet-area square foot. If the builder resists putting the RERA carpet area into the agreement, that resistance, not the brochure, is your red flag.
When the difference is real: land extent in the brochure vs the sanctioned layout
The harder case is a plot, a villa, or a project where the brochure shows a different quantum of land than the RERA-filed sanctioned layout. Here the difference can be substantive.
A brochure that shows more project land than the RERA filing may be counting land that was never brought into the approved project: land still owned by a joint-development landowner, land outside the sanctioned layout, land under a separate approval, or land the builder hopes to add later. Only the land inside the sanctioned layout carries the approvals, the common-area rights, and the amenities the project is registered to deliver. If the "extra" acreage in the brochure sits outside that, your share of common areas and open space is calculated on the smaller, sanctioned figure, and the promised clubhouse or park on the extra land may have no approval behind it. The RERA-filed sanctioned plan is what governs what can lawfully be built and shared; a Section 14(2) deviation from that sanctioned plan needs the written consent of at least two-thirds of the allottees, which tells you how firmly the sanctioned layout, not the brochure, is meant to hold.
The way to test this is not to compare two glossy numbers but to pull the sanctioned layout referenced in the RERA registration and match its survey numbers and extent against the land's own title chain, the mother deed, and the revenue records. If the land in the brochure and the land in the sanctioned layout are not the same parcel, that is a question to resolve before signing, not after.
What RERA does to a false brochure
If the brochure did misstate the area and you relied on it, RERA gives you a remedy, but it is a money remedy, not a rewriting of your title.
Section 12 is the operative provision. Where a person makes an advance or a deposit on the basis of the information in a notice, advertisement, or prospectus, or on the basis of a model apartment or plot, and sustains a loss because of an incorrect or false statement in it, the promoter must compensate him; and if the person wishes to withdraw from the project on that account, he is to be returned his entire investment along with interest and, where applicable, compensation. Section 18 backs this with the broader right to a refund with interest, or to continue and receive interest for delay, when the promoter fails to deliver as agreed. Section 14(2) protects the sanctioned plan from being altered without allottee consent.
Read together, these say something specific about your predicament. A false brochure does not silently become part of your title, and it does not entitle you to the larger area the brochure promised. It entitles you to be made whole in money, up to and including exiting the deal with your investment and interest back. That is a real and useful lever, but it is a claim you pursue before the RERA authority or the consumer forum, not a fact that changes the sanctioned plan or the carpet area on your agreement.
And the builder is held to what it advertised. In Nitin Agarwal v. Bombay Dyeing & Manufacturing Co. (NCDRC, order dated 12 July 2024), the National Consumer Disputes Redressal Commission held that a developer is bound to deliver what its brochure promised and directed the builder to make good the gap, following the Supreme Court in Wg Cdr Arifur Rahman Khan v. DLF Southern Homes (2020) 16 SCC 512. The Supreme Court reinforced the money side of this in Parsvnath Developers v. Mohit Khirbat, 2026 INSC 170 (20 February 2026), holding that a consumer forum's power to award just and reasonable compensation for deficiency in service cannot be curtailed by one-sided contractual clauses that work to the buyer's detriment. So the brochure gap is a compensable wrong, but it is compensated, not converted into extra title.
Why the RERA filing overrides the brochure, but your registered agreement is what you sue on
Two rules sit behind the answer, and it is worth keeping them apart.
The first is Section 89, which gives RERA effect notwithstanding anything inconsistent contained in any other law, and the general scheme of the Act, which subordinates advertising to the registered particulars. Between an unsworn brochure and a sworn, sanctioned-plan-backed RERA filing, the filing is the authoritative version of the project. The brochure cannot contradict it and win.
The second is that the document you actually enforce is your registered Agreement for Sale. The courts and the Act both refuse to let a builder cut down agreement rights through a brochure or an allotment letter, and the area-specific relief for a shortfall lives at the RERA-authority and consumer-forum level rather than in a single settled Supreme Court rule: MahaRERA's guidance and its model Agreement for Sale (clause 1(g)) treat the registered carpet area as the binding commitment and require the promoter to refund the proportionate excess if the delivered carpet area is less, without hiding behind a tolerance clause. This is why the single most important step in your situation is not to argue about the brochure at all, but to make sure the carpet area, the common-area share, and the plot extent in your Agreement for Sale match the RERA filing exactly, in writing, before you pay past the ten per cent that Section 13 allows.
Boundaries over extent: the title-side rule for a plot's area
For a plot or a piece of land, there is a further layer that most buyers never hear, and it decides many area disputes.
When a Sale Deed describes land, the Schedule gives both an extent (a number of square feet or cents or acres) and a set of boundaries (what lies to the north, south, east, and west). Where the two disagree, Indian courts have long held that the boundaries prevail, because the boundaries identify the actual parcel while the extent figure is treated as approximate. The Supreme Court applied the same approach in Ayyavu v. Prabha, 2025 INSC 336 (7 March 2025), where it said the boundaries in the sale deed "play an important role" and upheld the buyer's claim by reading the deed's boundaries against the court commissioner's report and plan, despite a gap between the extent sold and the vendor's original holding. The practical import for you is that a brochure's area figure, and even a mismatch between the deed's extent and a physical measurement, is not automatically a title defect; what governs the land is the boundaries in the Schedule read against the survey sketch and the sanctioned layout. The number matters most where the boundaries are vague, where the land was sold by measure at a rate, or where a slice is actually missing or encroached.
Why none of this shows on an encumbrance certificate
Buyers reach for the encumbrance certificate first and are quietly misled by a clean one. An encumbrance certificate is a search of registered instruments over a survey number for a chosen period, produced under the Registration Act 1908. A brochure is not a registered instrument. A RERA filing is not a registered instrument. A sanctioned plan is not a registered instrument. So a mismatch between any of them will never appear on an encumbrance certificate, and a spotless EC on the land tells you nothing about whether the brochure's area, the RERA carpet area, and the sanctioned layout agree.
The records that answer the area question are a different set entirely: the RERA registration and the sanctioned plan on the state authority's portal, the carpet area in your Agreement for Sale, the plot extent and boundaries in the Sale Deed Schedule and the mother deed, and the revenue survey sketch. The check that resolves a brochure-versus-filing conflict is a cross-read of those documents, not the EC everyone downloads first.
The checks to run before you sign
Turn the confusion into a short sequence.
Pull the project's RERA registration on your state authority's portal using the number the brochure is required to display, and open the registered particulars: the sanctioned plan, the layout, and the carpet area for your unit. Confirm that the area in your Agreement for Sale is the carpet area from the RERA filing, stated as carpet area, and not a super built-up figure carried over from the brochure. For a plot or project land, match the survey numbers and extent in the sanctioned layout against the land's title chain and mother deed. Do not part with more than ten per cent of the price before a written, registered Agreement for Sale is in place, because that is both the law under Section 13 and your leverage. And keep the brochure: if it did misstate the area and you relied on it, it is the evidence for a Section 12 claim, even though it is not the measure of your title.
FAQs
Is the builder's brochure legally binding? Not as a definition of what you own. A brochure is advertising, and Section 11(2) of RERA treats it as material that must point the buyer to the registered particulars by displaying the RERA number. Its legal effect runs against the builder, not for the brochure's promises: under Section 12, if you paid relying on a false statement in it, you can claim compensation or withdraw with a full refund and interest. It cannot give you a larger apartment or more land than your registered agreement and the sanctioned plan provide.
The brochure says 1,450 square feet but the RERA site says about 1,050, is that fraud? Usually not. That gap is the classic difference between super built-up area (the older brochure figure) and carpet area, which RERA now requires as the unit of sale under Section 2(k). Nothing has shrunk; two different measures of the same flat are being compared. Confirm the RERA carpet-area figure, make sure your Agreement for Sale states that carpet area, and read the price as a rate per carpet-area square foot. It only becomes a RERA issue if the carpet area itself is misstated or later reduced.
Which prevails, the RERA carpet area or the area in my sale agreement? They should be identical, and that is the whole point of checking before you sign. Your registered Agreement for Sale is the document you enforce, and it must carry the same carpet area as the RERA filing. If a builder tries to put a different, larger area in the agreement than the RERA-registered carpet area, do not sign until it is corrected, because the agreement is what binds you and the RERA filing is what the regulator will hold the builder to.
The project land in the brochure looks bigger than the RERA-filed extent, should I worry? Yes, enough to investigate. Extra land shown in a brochure may sit outside the sanctioned layout, on joint-development land, or under a separate or missing approval, and only the land inside the sanctioned layout carries the approvals, common-area rights, and amenities. Pull the sanctioned layout from the RERA registration and match its survey numbers and extent against the land's title chain before signing.
If the delivered area turns out smaller than what was sold, can I get money back? Generally yes, through the RERA authority or the consumer forum rather than by re-writing your title. MahaRERA's guidance and its model Agreement for Sale treat the registered carpet area as the binding figure and require the promoter to refund the proportionate excess paid when the delivered carpet area is less. More broadly, the consumer commission has held a builder to its advertised promises (Nitin Agarwal v. Bombay Dyeing, NCDRC, 12 July 2024), and Sections 12 and 18 provide the routes to compensation or a refund with interest where the promoter misrepresented or defaulted. Keep every document that stated the area, and match the agreement, the RERA filing, and the final measurement.
Does a clean encumbrance certificate cover any of this? No. An encumbrance certificate searches only registered instruments under the Registration Act 1908. A brochure, a RERA filing, and a sanctioned plan are none of them registered instruments, so an area mismatch between them can never appear on an EC. A clean EC says a sale or mortgage was not registered against the property; it says nothing about whether the brochure area, the RERA carpet area, and the sanctioned layout agree.
How LegiScore fits
LegiScore is a technology provider, not a law firm and not a substitute for your own advocate. What our title search does in this situation is read the land's own records, the Sale Deed Schedule and mother deed, the revenue survey records, and the title chain, and surface where the extent and boundaries on record disagree before you pay. Comparing the brochure with the RERA filing is a check you run yourself on the authority's portal, using the steps above.
If you are weighing a purchase where the numbers do not line up, get a title search report before you part with more than the ten per cent the law allows.
Related reading
- RERA registration does not mean clear title
- How to verify a project's RERA registration, state by state
- The sale deed says 1,200 sq ft but the plot measures 1,150: is the title defective?
- How to read a sale deed before buying property
- The flat and apartment due-diligence checklist
- Occupancy certificate vs completion certificate
- The builder wants full payment but there is no occupancy certificate
- What the RERA Act actually regulates