Additional costs white tank

Hello! [emoji137]

My boyfriend and I are currently looking for a suitable building plot. In the new development area of our desired location, there is actually a plot that we like in terms of location, size, and orientation. However, we know that the ground is damp/wet because several 'normal' basements in this development area are wet.

But we would rather not do without a basement.

Does anyone have experience with the additional costs that a 'white tank' entails compared to a normal basement?

It is not meant to be a living basement; maybe it would be nice to have a hobby/sports room there, but it is not a must.

Thank you very much in advance [emoji4]

Depending on the size, the entire basement should cost between 50,000 and 70,000 Euros.

Thank you very much for the quick reply!

Fortunately, that doesn't sound like exorbitant additional costs and would therefore probably be financially feasible for us.

Does the type of basement actually have an impact on the different KFW house types? (55, 40...)

Yes, with a basement it is more difficult to meet the various KfW guidelines. Especially a utility basement can become a problem. Your builder will be able to tell you more about this.

hm, I already suspected that, but at the appropriate time the contractor will indeed be bombarded with the corresponding questions. [emoji6]