What claims are supposed to be filed?
None yet, as there is no letter from the insolvency administrator and the construction law attorney I contacted cannot do anything yet.
The overpaid money is part of the insolvency estate and the remaining work will no longer be carried out.
How can you judge that? All services that must be provided up to the construction of the basement have been completed or are currently being completed, and we have not yet made any down payment for the basement, so according to this calculation no money has been lost yet. Unless services, such as completing the work plan, are no longer provided, but according to your calculation these works are only 3-5% of the amount, so we would only lose about €12,000 max.
All statements refer only to a contract for work, while the question still has not been answered whether it is actually a contract for work or, as mentioned at the beginning, a developer contract.
It is a contract for work.