Can a Builder Change the Approved Plan? RERA Section 14 for Chennai Buyers

Imagine a letter arriving at a flat buyer's home in Pallikaranai, two years after booking. The builder writes that the clubhouse will move to the far end of the site, the open play area will shrink, and an extra block will rise where the brochure showed a landscaped garden. The letter ends with a line asking the buyer to sign and return an enclosed form "for records".

That form matters more than it looks. Section 14 of the Real Estate (Regulation and Development) Act, 2016 sets out what a promoter can and cannot change once the approved plans have been shared with buyers, and whose consent is needed. This guide walks a Chennai buyer through the rule, using the text of the Act itself.

The short answer. Once the sanctioned plans, layout plans and specifications have been disclosed to you, a builder needs your previous consent to make additions or alterations to the apartment you agreed to buy, and the previous written consent of at least two-thirds of the allottees to make other alterations to the building or common areas. Minor changes you request, and minor changes needed for architectural or structural reasons verified by an architect or engineer, are allowed after declaration and intimation to you. The trade-off: your consent is a real lever, but signing a form without reading it can hand that lever away.

What does RERA Section 14 actually say?

Section 14(1) of the Real Estate (Regulation and Development) Act, 2016, as published in the Gazette of India, says the project shall be developed and completed by the promoter in accordance with the sanctioned plans, layout plans and specifications as approved by the competent authorities.

Section 14(2) then opens with the words "Notwithstanding anything contained in any law, contract or agreement". After the sanctioned plans, layout plans and specifications, and the nature of fixtures, fittings, amenities and common areas, have been disclosed or furnished to a person who agrees to take an apartment, plot or building, the promoter shall not make two kinds of change without consent.

The first, in clause (i), is any addition or alteration in the sanctioned plans, layout plans, specifications and the nature of fixtures, fittings and amenities in respect of the apartment that person agreed to take, without that person's previous consent. The second, in clause (ii), is any other alteration or addition in the sanctioned plans, layout plans and specifications of the buildings or the common areas within the project, without the previous written consent of at least two-thirds of the allottees, other than the promoter, who have agreed to take apartments in that building.

The phrase "notwithstanding anything contained in any law, contract or agreement" is why a clause in your agreement that seems to allow the builder to change plans at will does not override this section.

Which changes can a builder make without your consent?

The proviso to clause (i) allows two narrow categories. The promoter may make minor additions or alterations that you yourself require. And the promoter may make minor changes or alterations necessary for architectural and structural reasons, duly recommended and verified by an authorised architect or engineer, after proper declaration and intimation to you.

The Act then limits what counts as minor. Its explanation says "minor additions or alterations" excludes structural change, including an addition to the area or change in height, the removal of part of a building, any change to the structure such as constructing, removing or cutting into a wall, partition, column, beam, joist or floor including a mezzanine, a change to or closing of any required means of access, ingress or egress, or a change to the fixtures or equipment.

So a builder cannot treat a new floor, a changed column grid, or a closed staircase as a minor change. If a notice describes such a change as minor, that description does not match the Act.

How do the consent rules apply to different changes?

The table below maps common situations to the part of Section 14 that governs them.

The same two-thirds threshold appears elsewhere in the Act. Section 15(1) says the promoter shall not transfer or assign its majority rights and liabilities in a project to a third party without the prior written consent of two-thirds of the allottees, other than the promoter, and the prior written approval of the Authority. Its proviso adds that such a transfer does not affect allotments or sales already made by the earlier promoter. If a change notice arrives together with news of a new developer taking over, both consents are in play.

Section 14 also carries the defect rule that buyers rely on after possession. Under Section 14(3), if a structural defect or a defect in workmanship, quality or provision of services is brought to the promoter's notice within five years from the date of handing over possession, the promoter must rectify it without further charge within thirty days, failing which aggrieved allottees are entitled to appropriate compensation under the Act.

Keep the order of events in mind. The consent has to come before the change. A builder that alters a plan and then asks buyers to approve it afterwards has not followed the sequence the Act sets out.

How is the two-thirds of allottees counted?

The explanation to clause (ii) answers this. Allottees are counted irrespective of the number of apartments or plots booked by one person or in the name of their family. Companies, firms and associations of individuals are likewise counted as one allottee, including bookings in the names of associated entities or related enterprises.

That matters in practice. A promoter cannot reach two-thirds by counting several flats held by one investor family, or by one company and its related firms, as several votes. The promoter itself is also excluded, because the clause speaks of allottees other than the promoter.

If you receive a request for consent, ask how many allottees there are in the building, how many have signed, and how related bookings have been counted. A well run association, once formed, is the natural forum to ask these questions together.

What should you ask for before you sign a consent form?

Section 19(1) of the Act entitles you to obtain information about the sanctioned plans, layout plans and specifications approved by the competent authority. Section 11(3) requires the promoter, at booking and when issuing the allotment letter, to make the sanctioned plans, layout plans and specifications available, by display at the site or elsewhere as regulations specify.

Use those rights before you sign anything. Ask for the currently sanctioned plan and the proposed revised plan side by side, a written description of every change, and the architect's or engineer's recommendation if the builder says a change is minor and needed for structural reasons. Ask whether the competent planning authority has approved, or will need to approve, the revision.

Compare the proposal against the agreement for sale you signed and the brochure. Our guide to builder buyer agreement clauses to read closely covers the related clauses on specifications and amenities, and the same reading applies in Chennai. Before booking in the first place, our walkthrough on verifying a project's registration in Tamil Nadu shows where the registered plan details sit.

What should a Chennai buyer do when a change notice arrives?

Treat the notice as the start of a conversation, not a formality. Use this checklist:

1. Do not sign any consent or acknowledgement form on the day you receive it.
2. Ask for the sanctioned plan and the proposed revised plan, side by side, in writing.
3. Identify whether the change affects your own flat, the building, or the common areas.
4. Check whether any part of it is structural under the Act's explanation of minor changes.
5. For building or common area changes, ask how the two-thirds consent is being counted.
6. Discuss the proposal with other buyers or the association before anyone signs.
7. Keep copies of the notice, your questions, the replies and anything you sign.

If you believe a change has been made without the consent the Act requires, Section 31(1) allows any aggrieved person to file a complaint with the Authority or the adjudicating officer for a contravention of the Act or the rules and regulations made under it. In Tamil Nadu, that means the state's real estate regulatory authority for registered projects.

What do Chennai buyers ask about plan changes under RERA?

Can a builder change my flat's layout after I book?

Not without your previous consent once the approved plans have been disclosed to you. Section 14(2)(i) of the RERA Act bars additions or alterations to the plans, specifications, fixtures, fittings and amenities of the apartment you agreed to take without your consent, subject to narrow exceptions for minor changes.

What counts as a minor change under RERA Section 14?

Minor changes are ones you request, or ones needed for architectural or structural reasons that an authorised architect or engineer verifies, with declaration and intimation to you. The Act excludes structural changes, added area, changed height, cutting walls or columns, and closing access from the meaning of minor.

How many buyers must agree to change a building's plan?

At least two-thirds of the allottees in that building, other than the promoter, must give previous written consent for other alterations to the building or common areas. Each person, family, company or group of related entities counts as one allottee, however many units it has booked.

Where can a Chennai buyer complain about an unapproved change?

Section 31(1) of the RERA Act allows any aggrieved person to file a complaint with the Authority or the adjudicating officer for a contravention of the Act, rules or regulations. For a registered Chennai project, that means the Tamil Nadu real estate regulatory authority.

Last updated 2026-10-17. PropNewz Team.