ᐅ Drainage

Hello everyone,

my house is about to flood.
The water is standing right at the house, and clay has been pushed up behind it so that it doesn't drain away.

The site manager thinks this is fine, and the inspector is relaxed about it.
Can I be relaxed too?

Is a drainage system necessary with clayey soil, and if so, who is responsible for installing it, the developer?
I haven’t found anything about this in the contract.

Thank you very much!
ILWJ

Don’t you have a soil report?

We also have clayey soil, and our soil report therefore recommends soil replacement and drainage. The earthworks contractor requested a copy of the soil report right away and is working exactly according to the foundation recommendations.

Yes, but it only says that the soil is unsuitable for rainwater infiltration.
There is no mention of drainage, just that we have gravelly clay starting from 40cm (16 inches)...

We also have clayey soil. Therefore, the basement was precautionarily constructed as a waterproof concrete shell (often called a "white tank"). Additionally, we have a deep drainage system and a surface drainage system. Without these drainage systems, the house would remain dry (due to the waterproof shell), but the property would be completely waterlogged.

ILWJ schrieb:
Yes, but it only says that the soil is unsuitable for rainwater infiltration.
There is no mention of drainage, only that we have gravelly clay starting at 40cm (16 inches)...

So there is no foundation recommendation in the soil report?

The foundation recommendation does not include drainage, so it is probably not necessary...