Experiences with alternative route rights / judgments

The WBG will sooner or later request a right of emergency passage and possibly sue for it.

How do you come to that conclusion?

The drafts of the WBG now clearly show it

Where did you get them from?

An emergency right of passage will probably have to be accepted begrudgingly.

No, certainly not for a multi-family house. No approval authority will grant a building permit for a multi-family house if access is not secured (§4 paragraph 1, State Building Code). The WBG will (have to) approach the owners of the pathway area and negotiate a right of way. This then must be secured by a building encumbrance and entry in the land register. You can confidently lean back and wait. In BW, neighbor participation is mandatory according to §55 State Building Code. As soon as a building application is submitted, you will be informed. Should this not happen against expectations or should a building permit be granted despite objection (which I consider excluded), you can still go to a lawyer at the first sign of construction starting.

You are already upset about something that is rather unlikely and neither obvious nor conclusive.

Yes, of course I am already upset, once construction has started it will be too late.
And why should it be neither obvious nor conclusive?

But where does it say, who says that they want to use the entire south side? Or rather come through the courtyard and not directly via the yellow option?

This is what the drafts and plans show.
The yellow access no longer exists on the plans, underground garage entrance and parking spaces are only accessible via the courtyard area.
And we want to prevent that.

What do you base your assumption on, which you take as a given here?

Plans and drafts of the WBG

Who says that? Nothing has happened yet, as you say.

Again, the drafts. The conclusion from this is that sooner or later the right of way will be requested.
Then either an agreement or a lawsuit.

How do you come to that?

Because for the WBG there is no other way to access the property.
As I said, then either an agreement or a lawsuit.

Where did you get them from?

The plans and drafts were presented to one (!) of the three parties.

A different perspective: Why or since when is there even a plot of land without access?

Maybe there is a starting point here?

Thank you, the plot of land has existed like this for over 80 years.
The owners also had a house nearby.
Both were sold separately by the descendants.
The plot that the WBG has now acquired was previously used only for agriculture (garden, potatoes, field, shed) and could be accessed with the tractor based on an oral agreement.
Therefore, there is no registered right of way.

Because there is no other way for the WBG to access the property.

Yes, over the yellow marked area you mentioned. That one and no other.

Yes, via the yellow marked area that you mentioned. That and no further.

I don’t quite understand.
Even to reach the yellow marked area, our private road must be used as a connection.
Therefore, a right of emergency access (or right of way) is necessary.

The yellow access road no longer appears on the plans, underground garage entrance and parking spaces are only accessible via the courtyard area.

One could even make execution plans from a castle in the air, but it would remain a castle in the air without approval (feasibility) – and what says is usually qualitatively more than just an expression of opinion (otherwise he explicitly points that out). I have myself already seen a real estate agent’s exposé for a multi-family house that was not approvable. That would not have to be the first property by means of which a deposit fraudster acted as an alleged property developer.