How much additional cost according to the structural engineer's calculation?

I am still missing the exact texts of the contract. Now it is already a [weisse Wanne]. The architect doesn’t know that there is an earthquake zone? That you are not allowed to build drainage there either? Is that your architect or the contractor’s?

What about your right of withdrawal now, you can't keep delaying it forever! Now quickly go to the lawyer, I already told you in my post #40!

What 11ant writes is also the only straw I see for you. Get out of there if you still can before you build yourself into private insolvency.

I still miss the exact texts of the contract. Now it’s already a watertight concrete shell. The architect doesn’t know that there is an earthquake zone? That building a drainage is not allowed there either? Is that your architect or the contractor’s?

As I understood the original poster, it is a kind of stand-in architect commissioned by, let’s say, the general contractor, but apparently with the scope of services limited to "service phases 3 and 4," meaning just the distillation of the building application from design drawings obtained from whatever source. I suspect the original poster brought such drawings herself, i.e., those with which she collected the offers — these are then "drawn in" and pushed through the approval process. The client of the architect is the general contractor; the contract volume for service phases 3 and 4 means that the architect’s professional liability towards the general contractor is quite limited. And the original poster herself has no claim against anyone for the negligence, since in Germany it belongs to contractual freedom to walk into an open trap as a layperson. That’s why I advised the original poster to consult what I believe is the exactly right lawyer here.

What the 11ant writes I also see as the only lifeline for you. Get out if you still can, before you build yourself into personal insolvency.

Yes, urgently. Already forecasted 30k additional costs with exactly 0 euros additional value increase of the loan collateral (and we still don’t know whether omitting the basement — which itself doesn’t solve the foundation problem — is even possible on the property side). I see the bank possibly withdrawing a financing commitment, and the original poster (at least if she continues to hesitate with the revocation) will be stuck with a construction contract that the general contractor will then want bought out expensively. Conclusion: several tens of thousands of euros plus all the legal burial costs on top for nothing but a broken building dream. A debt counselor cannot simply wipe that away with kind words. Either the original poster can still pull the emergency brake, or she has set herself back by years with one signature.

I am still missing the exact texts of the contract. Now it is already a watertight basement. The architect doesn't know that there is an earthquake zone? Also not that no drainage may be built there? Is that your architect or the builder's?

The architect only works with H&H but also with other construction companies. He also has his own address on the internet. H&H only has contract partners.

Didn't you have a list of requirements for the fixed price? I remember that the nationwide providers gave us such lists, which stated the required wind, snow load, and earthquake zone.

I have to say that h&h had stated in the documents that it could be necessary to have a tub and that this would entail considerable additional costs. But they could have told us beforehand that we are in earthquake zone 3 or we should have informed ourselves better.

Indirectly, you have at least confirmed that besides this strange provider, you only know Gabriele's favorite Heinz and a shell house provider - which is dangerously little for someone who signs expensive contracts. You still have not answered my question whether the basement was required due to the hillside location (because I didn’t ask it in DaF ???). Eight thousand is a lot of money just for a """architect""" (mind the triple quotation marks) who more or less only draws a floor plan onto the site plan, with views and sections added, but just pictures, WITHOUT the actual basis. That the service phase 1 is at the very front was not made up by some joker. With a proper architect contract, such sloppiness would be a case for the architect’s professional liability insurance. So what about your right of withdrawal, you can’t drag that out forever! Now quickly go to the lawyer, I mentioned her to you in my post #40! In the same post, I also linked you the questionnaire, you can fill it out even without prior learning success.

No, the basement was not required due to a hillside location. We actually had to waive our special termination right. I suspect we can no longer get out of the contract.