Purchased land after demolition, construction debris in the ground

Are the bricks etc. definitely from the fire station (new fracture edges?) and cannot be from a building that might have stood there before? (Are there old photos from before the fire station?)

Not that in the end it isn't the current construction debris and you are left with lawyer fees or similar.

Is everything slanted, fire truck, sellers the city? What does she say about the [Corpus delicti]

It is always advised to commission the geotechnical survey BEFORE the contract and only buy after the result

That is probably very theoretical if the property is still built on at that time.

The contract should have included how the pit is to be filled after demolition. Even if the rubble from the demolition was not lurking there now, they would probably have filled it with the cheapest stuff anyway. Unlike some others here, I also see no leverage on the buyer’s side. As long as filling with the rubble is not illegal, the owner can throw whatever he wants into his pit. That you cannot subsequently build a house on it free of charge is probably someone else’s problem. Provided nothing was agreed upon in the contract.

Come on, now I know my way around this. You are not allowed to simply dispose of construction debris anywhere, not even in an excavation pit. Sure, when demolishing, a stone might be left behind, and that has to be accepted and can be managed. However, the demolition company has to haul away the debris and take it to the landfill. If necessary, it must be separated there as well, if there was asbestos. - Bet that this is not a specialty from SH but also applies in Hessen or somewhere else. K.

I wrote, yes, provided the installation was not illegal. And of course that is possible, provided the rubble was crushed, the material was properly tested, and approval was granted. It is then called recycled material and is used everywhere in this country. Possibly not in water protection areas. Encountering shards or brick pieces when drilling is then nothing unusual. Whole stones, however, do not belong there, for example.

It is always advised to commission the soil survey BEFORE the contract and only buy after the result

That would also be correct. But what would the soil survey have done for us beforehand. The demolition would have taken place only after purchase anyway, and then we would have built on rubble, and there certainly would not have been another survey after the demolition.