A Bengaluru buyer liked a flat in a nearly finished tower and paid an advance to the person showing it, a landowner who had given his plot to a developer years earlier. What the buyer had not checked was whether that specific flat belonged to the landowner's share or the developer's, and whether the developer had signed off on the sale. When the two fell out over pending dues, the buyer found himself caught between them, holding an advance for a flat neither side would cleanly hand over. In a city where most homes are built this way, knowing how a joint development agreement works is not optional for a buyer.

The short answer. A joint development agreement, or JDA, is a deal in which a landowner gives land and a developer builds on it, sharing the finished flats or the sale proceeds between them. Some flats belong to the developer's share and some to the landowner's, so a buyer must confirm which party owns the flat, that the JDA and the power of attorney are registered, and, for a landowner share flat, that the developer has issued a no objection. The trade off is simple: an hour spent mapping the shares and the paperwork protects you from being caught in a dispute between the two owners.

What is a joint development agreement?

A JDA is the arrangement behind a large share of Bengaluru's new homes. As explained in a homebuyer's guide to joint development by Propsoch, it is a collaboration in which a landowner and a developer develop a property without transferring land ownership upfront. The developer handles the construction and financing, while the landowner contributes the land and receives either built units or a share of the profits once the project is complete.

For a buyer, the important consequence is that a JDA project has two sets of interests behind it, not one. The land continues to belong to the owner until units are sold, and the developer builds and markets under the agreement. That dual structure is entirely normal and legal, but it means a buyer needs to understand who they are actually buying from and on what authority, rather than assuming a single builder owns everything.

How is the built area shared?

The sharing is agreed in advance and written into the JDA. The Propsoch guide describes predetermined ratios between landowner and developer, with common examples such as forty to sixty or fifty to fifty. Two models are used. Under area sharing, the landowner receives a percentage of the constructed flats, for example a set share of the units. Under revenue sharing, the landowner instead gets a fixed percentage of the sale revenue. The guide also notes that prime urban land can command a higher share for the owner, while on the outskirts the owner's share may be lower.

Why does this matter to a buyer? Because it determines which flats sit in which party's pool, and therefore who has the right to sell the specific unit you want. A flat in the developer's share is sold by the developer, while a flat in the landowner's share is sold by the owner. Knowing the model and the split is the first step to identifying whose title and authority stand behind your purchase.

Why must a buyer check which party owns the flat?

Confirming the owning party prevents one of the classic JDA problems, the same flat being claimed by both sides. The Propsoch guide points out that the JDA clarifies the apartment numbers belonging to the developer and to the owner, which is precisely what stops a unit from being sold twice. As a buyer, you want to see that allocation and confirm that your specific flat falls clearly within the share of the party selling it to you.

This check also tells you whose paperwork to scrutinise. If the flat is in the developer's share, you rely on the developer's authority under the JDA and the power of attorney. If it is in the landowner's share, you rely on the owner's title plus the developer's cooperation. The table below sets out how the two situations differ, so you know what to ask for in each case.

What does the power of attorney do, and why verify it?

The power of attorney is what lets the developer act for the landowner, and it should be registered. The Propsoch guide explains that the power of attorney authorises the developer to obtain plan sanctions and clearances, and to sell units and sign sale deeds on the landowner's behalf, while the landowner remains the titular owner of the land until units are sold. Without a valid, registered power of attorney, a developer selling a unit may not have the authority they appear to have.

For a buyer, this makes the power of attorney a document to see, not assume. Confirm that the JDA and the power of attorney are registered, and that the authority they grant actually covers selling the flat you are buying. This is doubly important given how central such authority is, and it connects to the wider caution buyers should apply to any purchase resting on a power of attorney rather than a direct owner sale.

What extra documents does a landowner share flat need?

Buying from the landowner's share is perfectly possible, but it needs an extra layer of comfort. The Propsoch guide advises that for a landowner share purchase you obtain a developer issued no objection certificate or a tripartite agreement, along with written confirmation that the developer takes full responsibility to construct and hand over your unit, and verification that any construction dues have been resolved. These documents bridge the gap between the owner's title and the developer's role in actually delivering the flat.

The reason is practical. In a landowner share flat, the person selling owns the unit but the developer is the one building and handing it over. If the two are not aligned, or dues are outstanding, you can be caught between them, which is exactly the trap in our opening example. A developer no objection or a tripartite agreement puts both parties on the same page in writing, so your handover does not depend on a relationship you have no control over.

How do I verify a JDA flat before buying?

Verification for a JDA flat layers a few extra checks onto the usual due diligence. Work through the list below before paying an advance.

1. Ask whether the project is a joint development, and obtain the registered joint development agreement.
2. Identify from the JDA whether your specific flat is in the developer's share or the landowner's share.
3. Confirm that the JDA and the power of attorney to the developer are registered.
4. Check the project's RERA registration and current status on the state portal.
5. Pull an encumbrance certificate and confirm there is no mortgage or lien affecting the flat.
6. For a landowner share flat, obtain a developer no objection or tripartite agreement and confirm dues are cleared.
7. Ask whether the seller faces any sale stage restriction under the JDA before completing.

How does this fit the rest of a Bengaluru buyer's checks?

A JDA flat still needs the same project and authority checks as any other, and two of our guides pair naturally with it. Because a JDA rests on a power of attorney to the developer, it connects directly to our explainer on the risks of a general power of attorney sale, and because you should confirm the project itself, it pairs with our walkthrough of verifying a RERA registration in Bengaluru. When you are comparing specific projects, a detailed review such as our look at Akshara Valley in Kengeri is a useful companion to these legal checks.

The through line is that a JDA is a normal and common way to build in Bengaluru, but it puts two owners behind a project instead of one. A buyer who identifies which party owns the flat, verifies the registered agreement and power of attorney, and secures a developer no objection where needed, turns that complexity from a hidden risk into a set of documents they have already checked.

Frequently asked questions

What is a joint development agreement?

A joint development agreement, or JDA, is a contract in which a landowner and a developer collaborate to develop a property without the land ownership being transferred upfront. The developer handles the construction, financing and approvals, while the landowner contributes the land and receives either built units or a share of the sale proceeds when the project is completed.

How is the built area shared in a JDA?

The share is fixed, usually as a ratio between landowner and developer such as forty to sixty or fifty to fifty. Under area sharing the landowner receives a set percentage of the constructed flats, while under revenue sharing the landowner gets a fixed percentage of sale revenue. Prime land commands a higher owner share than land on the outskirts.

Should I check which party owns the flat I am buying?

Yes, because a JDA allocates specific flats to the developer and others to the landowner, and you should know which party your flat belongs to. This prevents the same flat being sold by both sides and tells you whose title and authority you are relying on. The JDA itself clarifies the apartment numbers belonging to each party.

What extra document does a landowner share flat need?

When you buy a flat from the landowner's share, you should obtain a developer issued no objection certificate or a tripartite agreement, with written confirmation that the developer takes responsibility to construct and hand over the unit. You should also verify that any construction dues on the flat have been resolved, so that no claim clouds the handover.

Last updated 2026-07-22. PropNewz Team.