Hello everyone,
We are currently looking for a developer for our house. At the same time, of course, we are also focusing on the right design, features, and price of the house.
Building a house is truly an adventure, and as you can imagine, there are a thousand questions and it’s hard to know where to start.
What I would like to know here is whether we are on the right track with a specific offer and if it can be implemented without any major concerns.
The key details are as follows:
Single-family house with approximately 140m² (1,507 sq ft) of living space, gable roof without dormers, KfW 70 standard, and
- central mechanical ventilation with heat recovery
- triple glazing with a U-value of 0.5
- solar rooftop system for domestic hot water with a 300-liter (79-gallon) storage tank
- roller shutters on the ground floor and upper floor
- underfloor heating return circuits in bathroom and kitchen
- triangular windows in the gable ends
The price for the whole package is supposed to be 180,000 euros. Overall, I find the price fair, but of course I’m also interested in your opinion.
Then I have a few more questions:
1. The construction description has very little information about the ventilation system installation. Should I follow up on this?
2. A condensing boiler from Vaillant, Junkers, Elco, or equivalent will be installed. Is this recommended, or are there specific things I should look out for?
3. What other aspects of the construction description should I pay attention to before accepting the offer? Are there any critical points I should be aware of?
Looking forward to your answers.
Best regards,
Matthias
We are currently looking for a developer for our house. At the same time, of course, we are also focusing on the right design, features, and price of the house.
Building a house is truly an adventure, and as you can imagine, there are a thousand questions and it’s hard to know where to start.
What I would like to know here is whether we are on the right track with a specific offer and if it can be implemented without any major concerns.
The key details are as follows:
Single-family house with approximately 140m² (1,507 sq ft) of living space, gable roof without dormers, KfW 70 standard, and
- central mechanical ventilation with heat recovery
- triple glazing with a U-value of 0.5
- solar rooftop system for domestic hot water with a 300-liter (79-gallon) storage tank
- roller shutters on the ground floor and upper floor
- underfloor heating return circuits in bathroom and kitchen
- triangular windows in the gable ends
The price for the whole package is supposed to be 180,000 euros. Overall, I find the price fair, but of course I’m also interested in your opinion.
Then I have a few more questions:
1. The construction description has very little information about the ventilation system installation. Should I follow up on this?
2. A condensing boiler from Vaillant, Junkers, Elco, or equivalent will be installed. Is this recommended, or are there specific things I should look out for?
3. What other aspects of the construction description should I pay attention to before accepting the offer? Are there any critical points I should be aware of?
Looking forward to your answers.
Best regards,
Matthias
T
tenniscrack23 Aug 2012 09:09Der Da schrieb:
1000 € per sqm turnkey... yeah, right 🙂 Is it April Fool’s Day again?There are already master masons who work for 924 euros per m² (86 USD per sqft) and build quite solidly... so no need for such dismissive comments... and they spend little on advertising since they only build about 10 houses a year... yet the houses are still excellent... I can gladly give you two addresses... 🙂
B
Bauexperte23 Aug 2012 09:25Hello,
The user was referring to a "turnkey" build – your master masons won’t be able to deliver that, and if they do, there is almost certainly a catch somewhere that, once resolved, will bring the price per square meter back to a realistic range. The price you mentioned probably applies to the shell construction; once a complete house is finished, the price per square meter of living space usually ranges between €1,500.00 and €2,000.00 (depending on energy efficiency class and fittings).
Kind regards
tenniscrack schrieb:
there are already master masons who work for 924 euros per m² (945 sq ft) and also build quite solidly.... so don’t dismiss such comments....
The user was referring to a "turnkey" build – your master masons won’t be able to deliver that, and if they do, there is almost certainly a catch somewhere that, once resolved, will bring the price per square meter back to a realistic range. The price you mentioned probably applies to the shell construction; once a complete house is finished, the price per square meter of living space usually ranges between €1,500.00 and €2,000.00 (depending on energy efficiency class and fittings).
Kind regards
M
Matthias18224 Aug 2012 15:38Hello everyone,
After some time, there is an update here as well. We have now signed the contract and are waiting for the building permit / planning permission to be completed.
Unfortunately, one issue has come up that I’m not completely happy with.
The builder assured us that the planned house would meet the KfW 70 standard. However, there are difficulties in achieving this level.
I have already spoken with the planner who is doing the calculations, and currently, for our house, he only reaches a value of 77% instead of below the required 70%.
He has already included the following measures:
- Thermal insulation with WLG 032 and facing
- 10cm (4 inches) base insulation and facing in the floor
- Windows with a Ug value of 0.5
- Individual calculation of thermal bridges
The biggest problem is the large window areas on the northwest side, as well as a trapezoidal dormer on the northwest side. Unfortunately, these cause significant deductions in the calculation.
His suggestion is to use an air-source heat pump to achieve the missing percentage points. At the moment, I’m not very enthusiastic about this and would like to avoid it.
I would appreciate a second opinion on whether there are other options to make the house eligible for subsidies without having to use an air-source heat pump.
I would be very grateful for your ideas and opinions.
Thanks and best regards,
Matthias
After some time, there is an update here as well. We have now signed the contract and are waiting for the building permit / planning permission to be completed.
Unfortunately, one issue has come up that I’m not completely happy with.
The builder assured us that the planned house would meet the KfW 70 standard. However, there are difficulties in achieving this level.
I have already spoken with the planner who is doing the calculations, and currently, for our house, he only reaches a value of 77% instead of below the required 70%.
He has already included the following measures:
- Thermal insulation with WLG 032 and facing
- 10cm (4 inches) base insulation and facing in the floor
- Windows with a Ug value of 0.5
- Individual calculation of thermal bridges
The biggest problem is the large window areas on the northwest side, as well as a trapezoidal dormer on the northwest side. Unfortunately, these cause significant deductions in the calculation.
His suggestion is to use an air-source heat pump to achieve the missing percentage points. At the moment, I’m not very enthusiastic about this and would like to avoid it.
I would appreciate a second opinion on whether there are other options to make the house eligible for subsidies without having to use an air-source heat pump.
I would be very grateful for your ideas and opinions.
Thanks and best regards,
Matthias
A contractor is only obligated to deliver what is written in the contract. If it is not stated in the contract, which you have surely had reviewed beforehand, then you have not purchased it.
If I remember correctly, you planned to spend something under 200,000 for your entire build. Now the time for additional claims begins... first, a different heating system must be installed, then surely other things will follow, and later you will probably end up paying about the same as everyone else.
But why don’t you ask your building partner what alternatives they see? We don’t have an air-source heat pump and easily achieve KfW 55 standard... However, the concept behind our house is probably completely different.
If I remember correctly, you planned to spend something under 200,000 for your entire build. Now the time for additional claims begins... first, a different heating system must be installed, then surely other things will follow, and later you will probably end up paying about the same as everyone else.
But why don’t you ask your building partner what alternatives they see? We don’t have an air-source heat pump and easily achieve KfW 55 standard... However, the concept behind our house is probably completely different.
M
Matthias18224 Aug 2012 17:27This is absolutely not about additional demands. I contractually guaranteed the KfW 70 house standard, and the contract was reviewed before I signed it.
Unfortunately, he sees no other alternative. According to him, he has already tried everything mentioned above. I’m just surprised that achieving KfW 70 is supposedly not possible despite all these measures.
I’m simply not impressed by the air-source heat pump. I also have some doubts about how effective it really is. Plus, it doesn’t look very nice to have such a box attached to the house.
Unfortunately, he sees no other alternative. According to him, he has already tried everything mentioned above. I’m just surprised that achieving KfW 70 is supposedly not possible despite all these measures.
I’m simply not impressed by the air-source heat pump. I also have some doubts about how effective it really is. Plus, it doesn’t look very nice to have such a box attached to the house.
Well, air source heat pumps are currently very popular among home builders. Probably because of a good profit margin and low effort.
There are plenty of alternatives to achieve KfW 70 standard. Your builder just isn’t interested or doesn’t want to bear the additional financial costs.
There are plenty of alternatives to achieve KfW 70 standard. Your builder just isn’t interested or doesn’t want to bear the additional financial costs.
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