Notarial Purchase Agreement - No Guarantee for Building Land

The risk that still exists: The plot is not exactly the one at the location in the development plan. In fact, the development plan uses different parcel numbers and the plots have not yet been divided. By pure visual estimation, it is clearly this plot and is included in the development plan.

Ouch. So the problem is not that the location of the plot as lying within the scope of the development plan is doubtful. Nor is there a boundary line visible separating bungalow plots from high-rise plots, and you are not limited to a specific house model. "Only" (but not to be underestimated) the seller wants to sell the plot with the "old parcel number," and by acquiring it you would step into the position of the land consolidation creditor. But even if the division has not yet been carried out (boundary marking, partition survey), the differing parcel numbers between the purchase contract and the development plan must come from somewhere, and the purchase contract must be able to clearly designate the plot to be purchased. I still do not understand exactly what is actually being sold here, after all you speak of an apparent identity of the old parcel number / desired building plot. Please show concretely (please not with less image area than about 100 meters in diameter, but at least all parcels affected by the division) the cadastral excerpt and the development plan section. What is it actually about – Case A as I suspect land consolidation with the creation of public traffic areas (almost no stone remains unturned, almost everyone gets a new smaller plot) or Case B (existing plot is parceled into front and cul-de-sac plots or into private street and several building plots)?

Please show concretely (please not with less image area than about 100 meters in diameter, but at least all parcels affected by the division) the cadastral extract and the development plan excerpt.

P.S., based on experience, it should be explicitly added: without childish obfuscations!

Then a reference to an existing development plan is sufficient and you even have a legal guarantee for it.

As far as I know, there can always be reasons why a plot of land is not buildable, even within the scope of a development plan. Imagine the European nightjar comes by and nests next door. Then you might have a problem.

As far as I know, there can always be reasons why a plot of land is not buildable even within the scope of a development plan.

Yes, classically mainly two: the development plan requires a minimum size that the plot does not meet. Or the remaining space between the adopted setback areas is too narrow.

Then you might have a problem.

That is a problem exclusively for the OP. He wants to have guaranteed developability. And that is provided by a zoning plan. The seller cannot be liable for every little thing. Especially not for the future – if that happens in three years, can he still withdraw?

Yes, classically mainly two: the zoning plan specifies a minimum size that the plot does not meet. Or the remaining space between the taken-over setback areas is too narrow.

Well, checked in the zoning plan in 15 seconds whether there is a minimum size. And the width should be known, right?

You are currently constructing totally nonsensical possibilities. But you know that yourselves.

You are just coming up with completely nonsensical possibilities. But you know that yourselves.

Not me, on the contrary:

Well, checked in the development plan in 15 seconds whether there is a minimum size. And the width should be known, right?

All, including those possible drawbacks I merely mentioned, can be determined in no time whether they exist at all.