Height of the house - Backwater level - Alternatives

Hello!

We are currently planning a house, the plot has been purchased, and we are currently working on the preliminary drafts. It is a corner plot which slopes slightly downward from the street. At the back, it is about 70 cm lower than at the street level. Where the house is located, roughly 40 cm lower.

For determining the backwater level, some values were used so that the house in the end has to be higher than the manhole cover at the street or something like that, and thus the house naturally has to be really high with the whole substructure, then also the floor, etc. This results in steps everywhere on a seemingly flat plot and a high difference between the floor level and the current ground surface, meaning the garden then.

Question: Are there no alternatives to approach the issue of the backwater level differently? What do you do if the street is at the top and there really is a slope down? Then the house can’t be higher than the street above, right?

Somehow it seems strange to me. These are immense costs for filling material, civil engineering work, steps, etc.... plus more filling for terraces, etc., and also in our case poor aesthetics, etc...

Thank you and regards

Backflow preventers are used. Otherwise, all houses that are not located on completely flat plots would have to gather around the summit cross, or be built like water towers. Figuratively, it’s kind of a cute idea. :)

It also depends on the development requirements with you, what is feasible. We had to fill in. A whole 1000sqm by one meter. Since the plots to the left and right of us are still vacant, our building now nicely sits on a little hill. It looks funny.

If the local channel is not deep enough, a lifting system is additionally required along with the backflow preventer, I assume.

...and if the lifting system becomes necessary, better pour on. What is not inside does not fail. And if such a system fails, it is sh.....

....and if the lifting system becomes necessary, better just pour on. What’s not inside, won’t fail. And when such a system fails, it’s sh.....

We have had a lifting system in a house for decades. No big deal. Sure, failure would be bad. But build a mound for that? Don’t know.