ᐅ How much additional cost is expected based on the structural engineer’s calculations?

Lauralila88 schrieb:

Actually, yes, but now the waterproofing tank (black tank) we need according to the soil report was an unplanned addition.

Regards

Yes, that’s what I meant: everything related to your plot is naturally not included in the house price.
In your case, the foundation slab example corresponds to the basement. Some people buy a plot only after the soil report or wait for the report before calculating costs with the bank.
I assume there is a construction specification for the basement as well, and it doesn’t mention any waterproofing, so this cost is only appearing now?
I thought the black tank is waterproofing and is common or mandatory, but it’s cheaper than a white tank, right?

If you’re building with a basement, does your house cost €400,000–500,000? Then a contingency buffer of €20,000–40,000 would be reasonable to plan for.

Lauralila88 schrieb:

And is it normal to be asked to waive the special termination right in writing?

That’s probably not normal. But you don’t have to sign it.

ypg schrieb:

Yes, that’s what I meant: everything related to your plot of land is, of course, not included in the house price.
My example with the foundation slab for you would be the basement. Some people only buy a property after a survey or wait for the survey before they proceed with financing.
I assume there is a detailed scope of work for the basement and it doesn’t mention any waterproofing, so that cost is only coming up now?
I thought a “black tank” (waterproofing) is standard and must be done, and is cheaper than a “white tank”?

If you’re building with a basement, then your house costs €400,000–500,000? In that case, a buffer of €20,000–40,000 should be factored in.

That’s probably unusual. But you don’t have to sign anything.

Yes, that’s correct – €423,000 including tiling, painting, and floor coverings.

Apparently, the “black tank” waterproofing is an extra cost because only drainage is included in the price, which we can’t use now.

Best regards

ypg schrieb:

Yes, that’s what I meant: everything related to your plot of land is, of course, not included in the house price.
In my example, the foundation slab for you would be the basement. Some people only purchase a plot after a survey or wait for the survey results before moving on to cost calculations with the bank.
I assume there is also a building specification for the basement, and it doesn’t mention any waterproofing costs that would only appear now?
I thought a “black tank” (tank waterproofing) is standard and required, and generally less expensive than a “white tank” (structural waterproofing)?

If you’re building with a basement, then your house costs around 400,000–500,000 Euros (about 400,000–500,000 USD)? In that case, a contingency of 20,000–40,000 Euros (about 20,000–40,000 USD) should be planned.

That’s probably not normal, but you don’t have to sign anything.

Since you seem to know quite a bit, I wanted to ask roughly how much earth disposal costs, because no one has been able to tell me.

What kind of special termination right have you agreed to give up?
Any demand like "sign here to waive your right XY" would make me suspicious at first.

kati1337 schrieb:

What kind of special termination right have you agreed on that you are supposed to waive?
Any demand like "sign here to waive your right XY" would make me suspicious at first as well.

They said otherwise they cannot start the planning.

Lauralila88 schrieb:

Since you seem to know your stuff, I wanted to ask how much earth removal roughly costs, nobody could tell me that.

No one can tell you that without context.
I only know that earth removal is currently extremely expensive. We spread all our excavated soil around the property because earth removal costs are too high. We were told a ballpark figure of 400€ (around $430) per truck trip, and that doesn’t even include landfill fees, just the transport.
And when it comes to basement excavation, the volume that fits in one truck is quite manageable.

Can you store it somewhere on your property? If not, can you still reduce the basement size? I don’t think this was properly planned. If waterproofing wasn’t included, and you didn’t budget for earth removal or excavation work, this could blow up your budget.