Hello @all!
I am planning to build a semi-detached house in the Ruhr area. After reading several discussions here about costs, many of which were very informative, I wanted to ask if you could provide a cost estimate for our small home...
As a layperson, it is quite difficult to realistically assess the price quotes.
Basic details:
Semi-detached house with 2 full floors
Hipped roof (not converted into living space)
7.6m x 10.7m external dimensions
Brick-faced facade
KfW 70 standard or better
Basement (watertight shell)
What costs (turnkey) are realistic?
How much extra does the basement typically add?
I can estimate the additional costs (land, purchase, temporary power supply, landscaping, garden, etc.) fairly well—please only estimate the costs for the house itself. Thanks ;-)
Best regards
Micha ;-)
I am planning to build a semi-detached house in the Ruhr area. After reading several discussions here about costs, many of which were very informative, I wanted to ask if you could provide a cost estimate for our small home...
As a layperson, it is quite difficult to realistically assess the price quotes.
Basic details:
Semi-detached house with 2 full floors
Hipped roof (not converted into living space)
7.6m x 10.7m external dimensions
Brick-faced facade
KfW 70 standard or better
Basement (watertight shell)
What costs (turnkey) are realistic?
How much extra does the basement typically add?
I can estimate the additional costs (land, purchase, temporary power supply, landscaping, garden, etc.) fairly well—please only estimate the costs for the house itself. Thanks ;-)
Best regards
Micha ;-)
M
Micha&Dany5 Oct 2011 06:11Hello Bauexperte
Thank you for your quick reply 🙂
Well – I was (naively, I guess) expecting around 20,000 to 25,000 for the basement – and 10,000 to 15,000 for the supporting work...
If I have to spend that much money just to fill in the ground (literally), I’d rather add another 10,000 on top and actually use the money – so I kind of “have” to build with a basement 😀
But the difference of 8,000 to 10,000 compared to 40,000 to 50,000 is much bigger than I expected...
Best regards
Micha 😎
Thank you for your quick reply 🙂
Bauexperte schrieb:
No one _has_ to build with a basement, it’s always a matter of weighing the pros and cons and personal preference 🙂
Well – I was (naively, I guess) expecting around 20,000 to 25,000 for the basement – and 10,000 to 15,000 for the supporting work...
If I have to spend that much money just to fill in the ground (literally), I’d rather add another 10,000 on top and actually use the money – so I kind of “have” to build with a basement 😀
But the difference of 8,000 to 10,000 compared to 40,000 to 50,000 is much bigger than I expected...
Best regards
Micha 😎
Hello Micha!
The additional costs for supporting or adjusting the height of the foundation slab depend on the local conditions. It is not possible to estimate this in a general way.
Usually, a frame is built using formwork blocks, and the space between is filled with compactable material. A site visit with foundation contractors and obtaining a quotation will provide a realistic cost estimate.
Personally, I would always avoid building with a basement, as the potential uncertainties are greater when constructing a basement. Issues such as the need for groundwater lowering, special waterproofing measures, or insufficient ground stability after excavation can quickly arise, increasing costs significantly. A soil survey should definitely be conducted. It is also helpful to ask neighbors with existing basements about their experiences.
Regards,
T.H.
The additional costs for supporting or adjusting the height of the foundation slab depend on the local conditions. It is not possible to estimate this in a general way.
Usually, a frame is built using formwork blocks, and the space between is filled with compactable material. A site visit with foundation contractors and obtaining a quotation will provide a realistic cost estimate.
Personally, I would always avoid building with a basement, as the potential uncertainties are greater when constructing a basement. Issues such as the need for groundwater lowering, special waterproofing measures, or insufficient ground stability after excavation can quickly arise, increasing costs significantly. A soil survey should definitely be conducted. It is also helpful to ask neighbors with existing basements about their experiences.
Regards,
T.H.
P
perlenmann7 Oct 2011 12:30I have a few thoughts as well.
Based on your nickname, I assume there are two of you? Are children planned?
I have a semi-detached house measuring 8x10m (26x33 feet), with two floors and a basement. I wouldn’t want to live with four people on this footprint without a basement. Heating systems, utility connections, and the washing machine take up a lot of space when you have to accommodate them on the ground floor. Of course, building without a basement (for example, using a garage as storage) is usually cheaper, but if the building plot and planning permission do not allow for more, a basement can be a useful (though expensive) solution.
Based on your nickname, I assume there are two of you? Are children planned?
I have a semi-detached house measuring 8x10m (26x33 feet), with two floors and a basement. I wouldn’t want to live with four people on this footprint without a basement. Heating systems, utility connections, and the washing machine take up a lot of space when you have to accommodate them on the ground floor. Of course, building without a basement (for example, using a garage as storage) is usually cheaper, but if the building plot and planning permission do not allow for more, a basement can be a useful (though expensive) solution.
M
Micha&Dany7 Oct 2011 23:03Hello Perlenmann,
Yes, there are two of us, and we don’t plan to have more children – two are enough 😀
We will build an open kitchen/living room/dining area, plus a guest toilet with a shower (two showers are necessary for four people plus frequent guests).
First floor: bathroom, bedroom with walk-in closet, and two children’s rooms (the bedroom should not share a wall with the children’s rooms – it’s better for both parents and children *g*).
Attic: was not planned before, but now it will include a guest room and a desk, with the heating system separated (if possible – the neighbors are using a gas condensing boiler and placing it under the roof…). Then there should ideally be 2–3 m² (20–30 sq ft) left for a small storage room.
That covers everything we need…
The basement will just end up full of junk anyway 🙁
Beer crates can go in the garage (planned size: 3 x 9 m (10 x 30 ft)), vacuum cleaner can be stored under the stairs (or possibly in the walk-in closet) – I just still need to figure out where to place the utility connection box. We’ll see if the technical connection conditions (TAB) allow placing it under the roof as well…
Did I forget anything?
Regards,
Micha 😎
Yes, there are two of us, and we don’t plan to have more children – two are enough 😀
We will build an open kitchen/living room/dining area, plus a guest toilet with a shower (two showers are necessary for four people plus frequent guests).
First floor: bathroom, bedroom with walk-in closet, and two children’s rooms (the bedroom should not share a wall with the children’s rooms – it’s better for both parents and children *g*).
Attic: was not planned before, but now it will include a guest room and a desk, with the heating system separated (if possible – the neighbors are using a gas condensing boiler and placing it under the roof…). Then there should ideally be 2–3 m² (20–30 sq ft) left for a small storage room.
That covers everything we need…
The basement will just end up full of junk anyway 🙁
Beer crates can go in the garage (planned size: 3 x 9 m (10 x 30 ft)), vacuum cleaner can be stored under the stairs (or possibly in the walk-in closet) – I just still need to figure out where to place the utility connection box. We’ll see if the technical connection conditions (TAB) allow placing it under the roof as well…
Did I forget anything?
Regards,
Micha 😎
Hello Micha!
Are you planning to build with underfloor heating?
By the way, if you want to keep the option open for other heating technologies in the future, such as a heat pump or a large solar storage system, the gas condensing boiler should be installed on the ground floor or in the basement. Later modifications to the infrastructure are not easily possible if the heating system is installed on the roof.
Best regards
T.H.
Are you planning to build with underfloor heating?
By the way, if you want to keep the option open for other heating technologies in the future, such as a heat pump or a large solar storage system, the gas condensing boiler should be installed on the ground floor or in the basement. Later modifications to the infrastructure are not easily possible if the heating system is installed on the roof.
Best regards
T.H.
M
Micha&Dany8 Oct 2011 10:40Hello Thomas,
Of course we are planning to install underfloor heating—anything else just doesn’t make sense nowadays...
And why do you think the heat pump has to go into the basement? I haven’t fully gone through the installation manuals yet, but looking at the dimensions of, for example, the StibelEltron LWZ403SOL, I would have to install it in the basement during construction anyway, and I would never be able to remove it from the house later on 🙁
Also, I have no idea where I would route the supply and exhaust air ducts...
On the roof, the ventilation ducts could be routed directly over the attic.
I also don’t quite understand your point—what do you see as the problem with placing a heat pump in the attic? 😕
Besides, I want to build with a heat pump from the start—but in the end, it’s a matter of price... Let’s see—I’m currently waiting for a quote from a heating engineer I trust 🙂
Regards,
Micha 😎
Of course we are planning to install underfloor heating—anything else just doesn’t make sense nowadays...
And why do you think the heat pump has to go into the basement? I haven’t fully gone through the installation manuals yet, but looking at the dimensions of, for example, the StibelEltron LWZ403SOL, I would have to install it in the basement during construction anyway, and I would never be able to remove it from the house later on 🙁
Also, I have no idea where I would route the supply and exhaust air ducts...
On the roof, the ventilation ducts could be routed directly over the attic.
I also don’t quite understand your point—what do you see as the problem with placing a heat pump in the attic? 😕
Besides, I want to build with a heat pump from the start—but in the end, it’s a matter of price... Let’s see—I’m currently waiting for a quote from a heating engineer I trust 🙂
Regards,
Micha 😎
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