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Sale Agreement vs Sale Deed in Chennai: What Each Document Does

Published 10 Oct 2026 · 4K Realty, Chennai

Two documents, two very different jobs

Buyers often use "agreement" and "sale deed" as if they mean the same thing. They do not. One is a promise to sell, the other is the document that actually transfers ownership. Knowing the difference helps you protect your money at each stage of the purchase.

What a sale agreement is

A sale agreement, sometimes called an agreement to sell, is signed before the final transfer. It records the terms both sides have agreed: the price, the advance paid, the payment schedule, the expected date of handover or registration, and what happens if either side backs out. It shows intent to buy and sell, but on its own it does not make you the legal owner.

For an under-construction flat, you may also sign a construction agreement alongside it, which covers the building work. Under RERA, the agreement for sale has to follow the format prescribed by the state, so check that your builder is using it.

What a sale deed is

The sale deed is the document that transfers ownership from the seller to you. It is signed by both parties in the presence of witnesses and registered at the sub-registrar office, after stamp duty and registration charges are paid. Once it is registered, you are the legal owner on record. This is the document banks, future buyers, and authorities rely on as proof of ownership.

Key differences at a glance

The agreement is signed first and is a contract about a future transfer, while the deed completes the transfer. The agreement can be cancelled according to its own terms, while a registered deed is permanent and can only be undone through the courts or by a further registered document. The deed carries the main stamp duty and registration cost, which is why it matters more.

What to check in a sale agreement

Read the payment schedule and make sure each instalment is tied to a construction stage if the flat is under construction. Check the possession date and the penalty clause if the builder is late. Confirm the carpet area, built-up area, and super built-up area are written clearly, as these affect what you pay for. Look at the cancellation terms, since some agreements allow the seller to forfeit a large part of your advance. If anything seems one-sided, ask for it to be changed before you sign.

What to check in a sale deed

Confirm that names, addresses, and survey numbers match the earlier documents exactly. Check that the property description and boundaries are correct, and that the deed mentions the correct share of undivided land for an apartment. Make sure any loan or mortgage on the property has been cleared or will be cleared at registration. Small spelling errors can cause trouble later, so correct them before signing.

Do not skip the registration

Some sellers offer to hand over possession on the basis of an agreement and delay the registration. This is risky. Without a registered sale deed, your ownership may not be recognised properly, and getting a loan, utility connections in your name, or a later resale can become difficult. Complete registration as soon as the flat is ready and the conditions in the agreement are met.

Verify before you pay a large advance

Before signing the agreement or paying more than a token amount, get a lawyer to check the title, encumbrance certificate, approvals, and RERA registration. A strong agreement does not fix a weak title. Sort out the legal checks first, then commit the money.

Keep copies and proof of payment

Keep copies of every agreement, receipt, and payment proof. Pay by bank transfer or cheque rather than cash, so there is a clear record. Ask for receipts for every payment, including the advance.

How we help

We guide buyers through each stage, from the first token to registration, and we point out clauses that deserve a second look before you sign. There is no charge for this support.

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