Contract Supplement to the Construction Contract by the Developer

Hello,

I will keep you updated ....if desired.

Gladly.

Kind regards

My last post on this topic: I still have a different opinion than the construction expert (which I have communicated to him via PN). In our case, a foundation of the base slab without a working space was possible – so that was not wisdom, but practice. @ Toni: Good luck with your negotiations!

Hello Toni

Our situation is similar. Our semi-detached neighbor is also building with a basement and we are without. The additional foundation costs for us are also around ~10TEuro (still a much lower investment than a basement, which you just end up cleaning out anyway...).

Our neighbors were much further ahead with their planning than we were – when we got the first offers from various general contractors, our neighbors were already working on their application documents.

In my opinion, it’s a clear matter: Our neighbors were simply further ahead, we have to adapt.

We are also not building with the same general contractor as our neighbors – but we have heard from several GCs:
If a GC were to build both halves together, then we would have no / hardly any additional costs, because in this case our slab could rest on the (reinforced) basement walls of the neighbor’s house.

Maybe Bauexperte can say whether this is really doable, and whether you could then save yourself a step...

If in your case a GC is building both semi-detached halves at the same time, then this solution might also work for you and save you a few thousand euros...

However, my gut feeling is that you will have to bear the additional foundation costs...

A few more words to everyone who thinks the neighbor is not allowed to perforate my property:
Completely independent of the load-bearing capacity of the (excavated and refilled) soil:
A house has weight. And if the weight is not transferred to the basement foundation level, partial forces will occur that can push in the neighbor’s basement wall.
- Damage: hole in the basement (structural integrity??)
- Responsibility: causation principle: owner of the house without basement
- Costs: far higher than 10,000 euros

Many greetings
Micha

Hello Micha,

... but we have heard from several GUs: If one GU were to build both halves together, then we would have no / hardly any additional costs, since in this case our floor slab could be supported on the (reinforced) basement walls of the neighboring house.

Maybe Bauexperte can say whether this is really feasible, and if then a stepped foundation could be avoided...

Unfortunately, there are BU/GUs who handle it this way for cost reasons - if it were one of our BUs, it would certainly be a reason for us to part ways with them.

With all due understanding for cost savings: on the one hand, built this way, your house would no longer be independently structurally stable, on the other hand, property ownership would have to be clarified and an easement registered - not to mention soundproofing. This is not something that can be done just like that or so easily - your house must be founded on your property! What happens if the neighbor sells in a few years and the new owner decides to demolish the property?

Kind regards

Hello construction expert

okay, I hadn’t considered it that way before...
Maybe it’s good that we’re not building with any of the developers who proposed that to us
But anyway - for us it was only a theoretical consideration anyway (would / could / ...), since the neighboring house had already long been planned and the building application was almost ready for submission.

Regards
Micha

Brief update: Unfortunately, I have not yet received any feedback from the BU. But the matter does not seem to lead to an amicable agreement. :-( At the moment, we are exploring all options.