ᐅ Realistic Price for a Single-Family Home, Possibly Turnkey
Created on: 24 Aug 2012 22:10
A
Ahnungslos
Hello everyone,
Since I've been thinking about building a house for a few months now, I came across this forum. Over the past weeks, especially here in this forum, I have read up a bit on the topic, but since I was (and still am) completely “Ahnungslos” (clueless), it’s not that easy. It’s almost frustrating before you even know what all the abbreviations mean.
As I have very little knowledge about house building and there are only a few tradespeople in my family, my girlfriend and I have decided that we want to build a prefabricated house.
After several discussions, we have now received a detailed offer from a provider. Since I don’t know if I’m allowed to name the provider, I’ll leave out the name for now, although I would, of course, be interested to hear if anyone has experience with them.
Here are some key details about our planned single-family house in Bavaria:
KfW 55 standard with controlled residential ventilation (Zehnder Comfoair 350) & air-to-air heat pump (Vitocal 200-S)
Usable floor area: approx. 180m² (1,938 sq ft)
Living area: approx. 160m² (1,722 sq ft)
Roof pitch 42° / knee wall 1.10m (3.6 ft)
Braas roof tiles, Roto roof windows, Schüco windows, etc.
A turn-key house (excluding the foundation slab) would cost us about 290,000 EUR (~$),
If we subtract various DIY contributions, the price is around 250,000 EUR (~$), but material costs would then have to be added again.
Additionally, the foundation slab costs about 30,000 EUR (~$) and the carport with garage about 13,000 EUR (~$).
What do you think? Is this a reasonable price, or is it too expensive?
I would appreciate your assessment.
Since I've been thinking about building a house for a few months now, I came across this forum. Over the past weeks, especially here in this forum, I have read up a bit on the topic, but since I was (and still am) completely “Ahnungslos” (clueless), it’s not that easy. It’s almost frustrating before you even know what all the abbreviations mean.
As I have very little knowledge about house building and there are only a few tradespeople in my family, my girlfriend and I have decided that we want to build a prefabricated house.
After several discussions, we have now received a detailed offer from a provider. Since I don’t know if I’m allowed to name the provider, I’ll leave out the name for now, although I would, of course, be interested to hear if anyone has experience with them.
Here are some key details about our planned single-family house in Bavaria:
KfW 55 standard with controlled residential ventilation (Zehnder Comfoair 350) & air-to-air heat pump (Vitocal 200-S)
Usable floor area: approx. 180m² (1,938 sq ft)
Living area: approx. 160m² (1,722 sq ft)
Roof pitch 42° / knee wall 1.10m (3.6 ft)
Braas roof tiles, Roto roof windows, Schüco windows, etc.
A turn-key house (excluding the foundation slab) would cost us about 290,000 EUR (~$),
If we subtract various DIY contributions, the price is around 250,000 EUR (~$), but material costs would then have to be added again.
Additionally, the foundation slab costs about 30,000 EUR (~$) and the carport with garage about 13,000 EUR (~$).
What do you think? Is this a reasonable price, or is it too expensive?
I would appreciate your assessment.
H
Häuslebauer4029 Aug 2012 20:39E.Curb schrieb:
Yes, but somehow you must have come to that conclusion. You don’t just say that without a reason.
Are you perhaps mixing up something? Maybe airtightness and thermal insulation?Isn’t it possible for both to go hand in hand?
Hello,
No.
A house must be airtight to prevent heat loss through ventilation. Additionally, warm, moist air must not enter the building structure, where it could potentially condense.
This airtightness is important and cannot be achieved through insulation alone.
Regards
Häuslebauer40 schrieb:
Are these two things incompatible?
No.
A house must be airtight to prevent heat loss through ventilation. Additionally, warm, moist air must not enter the building structure, where it could potentially condense.
This airtightness is important and cannot be achieved through insulation alone.
Regards
H
Häuslebauer4030 Aug 2012 09:31E.Curb schrieb:
Hello,
No.
A house must be airtight to prevent heat loss through ventilation. Also, warm, moist air must not enter the building structure, where it could potentially condense.
This airtightness is crucial and cannot be achieved by insulation alone.
Best regardsThen we are in agreement. Without having checked the details, but if I’m not mistaken, the building airtightness is also addressed in the energy saving regulations, right?
And that’s what I mean. On one hand, the house must be airtight because it’s required by the regulations, and on the other hand, you need a ventilation system or you end up losing the energy by airing out through windows to prevent mold growth.
Häuslebauer40 schrieb:
Without having looked it up, but regarding building airtightness, isn’t there something about it in the energy saving regulations, if I’m not mistaken? You’re not mistaken.
Häuslebauer40 schrieb:
On one hand, the house must be airtight because the regulations require it, and on the other hand, you then need a ventilation system or you end up letting the energy escape through occasional window airing to prevent mold from forming. What is wrong with that? Controlled ventilation is the key.
It doesn’t help if you insulate your house but have drafts coming through leaks everywhere. If you want to save energy, you must insulate and avoid heat loss through ventilation. That’s why controlled ventilation is necessary. It has nothing to do with blowing energy out the window.
H
Häuslebauer4030 Aug 2012 10:40From a purely technical perspective, there is certainly nothing wrong with it; it just seems paradoxical. The question is where the purpose of sealing and insulating the house ends and where the pointlessness begins, also from a financial standpoint. But there are smarter people than me to calculate that in detail.
I have already shared my opinion regarding KfW and similar programs above. I see no point in spending tens of thousands of euros just to meet a certain standard when the costs no longer pay off.
I have already shared my opinion regarding KfW and similar programs above. I see no point in spending tens of thousands of euros just to meet a certain standard when the costs no longer pay off.
Häuslebauer40 schrieb:
I don’t see any point in spending tens of thousands of euros just to meet a standard whose costs will never pay off.That is basically not wrong. Energy savings must be cost-effective and should not be pursued at all costs.
However, I consider airtightness of the building envelope necessary and correct, not only from an energy-saving perspective but also from the standpoint of building physics.
Best regards
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