Building an end terraced house - Which technical requirements should be considered?

Actually, the one who digs a deep hole on the border has to intercept and secure it, right?

intercepting and securing must actually be done by the person who digs a deep hole on the border, right?

But only if there is already a house standing there. What is he supposed to intercept then?

well, your foundation slab, if it is laid first

well, your base slab, if it is laid first

We would want to coordinate that.

What do you want to agree on there, do you think your neighbor is willing to sink 10000€ more into the basement because you are building in front of him? So you have to back down and wait or provoke a dispute. Not a nice situation.

But at least now you know who will call the shots in your building group for the time being.

What do you want to agree on there, do you think your neighbor wants to sink €10,000 more into the basement because you are building in front of him? So you have to back down and wait or provoke a dispute. Not a nice situation.

But at least you now know who will initially call the shots in your building group.

Please read my second to last post - that's exactly what I'm asking about. I don't know why there has to be such harshness here.