ᐅ Costs of Basement Included in Living Area?

Created on: 23 Aug 2012 20:19
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Brombadegs
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Brombadegs
23 Aug 2012 20:19
Hi,

So far, we planned to build a bungalow without a basement. It was supposed to be 14 by 10 meters (46 by 33 feet). Now we are considering building with a basement and saving space “upstairs.”
I would move one bedroom (since my son should have moved out by the time the house is finished) and, of course, the heating system downstairs. At the same time, I could set up my office there (so far I had planned some kind of container on the property).
The basement would need to be built slightly elevated, which shouldn’t be a problem since the neighbors have done the same.
How does that work? If the ground floor is 100 square meters (1,076 square feet) measured from the exterior walls, is the basement also 100 square meters (1,076 square feet)? Or is it less?
I don’t need a living basement with higher ceilings (at least I hope so), but I do need the possibility to heat it.
A door leading outside would also be great.
Could someone roughly estimate the cost range for a 140 square meter (1,507 square feet) house with a slab foundation compared to a 100 square meter (1,076 square feet) fully basement house?

Thanks a lot, Bromi
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Bauexperte
24 Aug 2012 13:26
Hello,
Brombadegs schrieb:

So far, we wanted to build a bungalow without a basement. It was supposed to be 14 x 10 m (46 x 33 feet). Now we are reconsidering whether we should build with a basement and save space "upstairs."

It is always more cost-effective to save space "downstairs." A basement — whether a utility basement or especially a finished basement — is the most expensive storage area I know of.
Brombadegs schrieb:

I would then place 1 child's bedroom (since my son should have moved out by the time the house is finished) and, of course, the heating system downstairs. At the same time, I could also set up my office there (so far, I had planned some kind of container on the property).

So a finished basement.
Brombadegs schrieb:

How does that work? Is the ground floor 100 sqm (about 1076 sqft, based on external dimensions) and the basement also 100 sqm? Or is it less?

Why would it be less, or are you thinking of a partial basement? You should know that a partial basement usually isn’t really worth it — it’s almost as expensive as a full basement.
Brombadegs schrieb:

I probably won’t need a finished basement with higher ceiling heights (at least I hope so), but would still need the option to heat it.

If it’s going to be a finished basement, you’ll have the same ceiling heights as in the other floors.
Brombadegs schrieb:

A door leading outside would also be great. Can anyone roughly estimate the cost difference between a 140 sqm (about 1507 sqft) house with a slab foundation versus a 100 sqm (about 1076 sqft) house with a full basement?

That’s almost impossible to say precisely—I can only give an estimate, assuming simple architecture (square shape, practical, no-frills).

A bungalow 14 x 10 m (46 x 33 feet) on a slab foundation would likely cost around 175,000 euros in standard quality, whereas a 140 sqm (about 1507 sqft) single-family home with a finished basement and external staircase would be roughly 270,000 euros. Both prices assume compliance with the energy saving regulations (Energy Saving Ordinance), so no high-efficiency class or additional building-related costs are included.

Best regards
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Brombadegs
29 Aug 2012 15:58
Thanks first of all...

Why do I HAVE to build the basement nearly 3 m (10 feet) high? If I use the basement simply as a storage room, then it’s not necessary. But if I plan to put an office there, does it have to be 3 m (10 feet) high? Who would check that?

What I meant is, if I reduce the living area from 140 sqm (1,500 sq ft) to 100 sqm (1,100 sq ft) and compensate by adding a basement—do you have any idea about the costs for that?

Regards, Bromi
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Bauexperte
29 Aug 2012 16:34
Hello,
Brombadegs schrieb:

Why DO I have to build the basement nearly 3 m (10 feet) high then? If I just use the basement as a normal storage room, then no, but if I plan to put an office down there, does it have to be 3 m (10 feet) high? Who is going to check that?

Not 3.0 m (10 feet) – standard ceiling height is about 2.53 m (8 feet 4 inches). Even if you apply through the simplified building permit/planning permission process, that doesn’t mean the building authority doesn’t inspect. One user here recently got into trouble because he – or his builder – didn’t consider the escape routes in the attic … the building authority is very strict about that!
Brombadegs schrieb:

What I meant is, if I reduce the living space from 140 sqm (1507 sq ft) to 100 sqm (1076 sq ft) and make up for it with a basement – do you know approximate prices?

Again, simple and practical. A single-family house of 100 sqm (1076 sq ft) with a finished basement and external staircase costs around 210,000–220,000 EUR. This price applies to a house complying with energy-saving regulations, so no efficiency class included and excluding additional building-related costs.

Kind regards