ᐅ KfW85 vs. KfW70: Is the Higher Cost Worth It?

Created on: 29 Jan 2015 23:54
H
Häusle77
Hello, a preferred developer of mine generally builds houses to the KfW 85 standard. To upgrade to KfW 70, there is an additional cost of almost €8,000. This includes better insulation and a 300-liter (79-gallon) hot water storage tank combined with photovoltaic panels. A friend mentioned that the extra cost is not worth it because the long-term savings are too small. My argument about the low-interest loan of €50,000 at 1% was only met with a tired smile, as interest rates are very low anyway. I would be interested in your opinion on this...
Fantamoax30 Jan 2015 10:13
I recommend paying special attention to the heating and ventilation concept when considering Viebrockhaus.

There is also a nice forum for home enthusiasts.

If you want to engage more deeply with the manufacturer, I suggest participating in the builder’s weekend. Viebrockhaus invites its future clients to stay overnight. During these two days, you can learn a lot about building with Viebrockhaus and get an early look at what the company offers as standard.

However, it is important to keep in mind that the presenters at these sessions are commissioned by the company. So, always approach the information with a critical mindset.

Overall, it was a very informative two days for us, even though we ultimately decided against this provider.

The accommodation and catering were also very much appreciated.

Best regards

Fanta
Y
ypg
30 Jan 2015 10:16
Häusle77 schrieb:
If you go by that logic, you might as well build to the KfW55 standard. Viebrockhaus offers that as a standard option; I also wanted to schedule an appointment there...

The standard house price for that is also higher. As long as the surveyor and inspection fees are included, that’s fine.

You should still compare the standard option and the upgrade... The latter doesn’t have to be more expensive 🙂
L
Legurit
30 Jan 2015 10:18
That’s not quite it... it’s not just about achieving a certain KfW standard, but also about how and what additional value it offers you. For example, Brockvieh reaches part of their goal with an air-source heat pump that has a relatively low seasonal performance factor. Just because another house uses gas heating and therefore only achieves, for instance, KfW 70, doesn’t mean the living comfort is lower. In fact, the house heated with gas might even have better insulation.

I believe you shouldn’t just chase the numbers—neither in one direction (trying with all your might to reach a specific KfW standard) nor in the other (evaluating a house solely based on construction costs).