ᐅ Waterproof Basement – Approximate Cost Estimate

Created on: 11 Feb 2021 12:29
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nitramf
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nitramf
11 Feb 2021 12:29
Hello everyone,

We are planning to build a single-family home with a basement in the greater Dresden area. The house will be one and a half stories, about 125 sqm (1,345 sq ft) with a basement.
The construction method will be solid masonry with brick.
Our builder recommended a waterproof basement, but we were quite surprised when we received the cost estimate yesterday.
The price per square meter of living space in the house is calculated at around 2200€.

The basement is listed separately in two items:
84,700€ for a waterproof and perimeter insulated basement (precast basement)
9,000€ for basement finishing (doors, screed) << this also seems somewhat high to me

For the size of the house, this seems a bit expensive; online sources usually mention figures around 60,000€. There is no expectation of contaminated soil, and disposal and excavation are already included in the 84,700€ price.

It would be great if some of you could share your experiences or professional opinions on this :-)

Best regards!
face2611 Feb 2021 12:42
How much floor area does the basement have?

I can't comment on construction costs in Dresden, but in Baden-Württemberg a basement built as a waterproof concrete shell (“white tank”) would be quite normal (especially if soil removal is included, which is often a big unknown).
Size and fittings are, of course, also important factors. For example, does it include electrical installations? Heating?

Is soil removal included as a flat rate or billed separately? You don’t want any unexpected surprises...
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nitramf
11 Feb 2021 13:23
The floor area is approximately 60 sqm (645 sq ft). The builder offers fixed prices, meaning this would be included as a flat rate.
face2611 Feb 2021 14:02
Hmm... 60 square meters (645 square feet) is not exactly large.

As I mentioned, I’m not familiar with prices in Dresden, but just the disposal of the excavated soil alone cost almost 15,000 euros. For an 80 square meter (860 square feet) basement with a waterproof concrete shell.

I can’t give you exact prices either, since although we contracted individual trades, the main contractor’s quote included the shell construction and I didn’t bother breaking down the individual costs. But roughly, I estimate about 70,000 euros for the bare basement structure. Additional costs came from screed, electrical work, heating, flooring, plastering/painting, and so on.

Just get a comparative quote. You could also ask a manufacturer of prefabricated basements, like Glatthaar or similar.
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ypg
11 Feb 2021 14:03
I find the costs reasonable.
This won’t be a basement for living space, right?
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nitramf
11 Feb 2021 14:05
ypg schrieb:
I find the costs understandable. This isn’t going to be a finished basement, right?
It’s meant to be a utility basement :-)