Stop or pause house construction? Costs too high

Hmm, the price is quite steep. Then also in [Gifhorn], rather unusual. Special architecture? Many special requests?

Well then, show your payback calculation.

What information do you find missing in my post, which you only partially quoted?

What information do you feel is missing from my post, which you only partially quoted?

How much heating cost savings you assume in order to recoup the additional investment exceeding the subsidy amount within a reasonable number of years. I really like kfw40, but you have to be able and willing to afford it. And if I understand the thread correctly, this is about solid construction and not timber frame construction.

How much heating cost savings you assume to recoup the additional investment exceeding the subsidy amount within a reasonable number of years. I really like kfw40, but you have to be able and willing to afford it.

I firmly believe that anyone who can afford a house for half a million can easily afford kfw40 as well. If not, then just build 2m² smaller. It is simply not reasonable to use kfw40 as an argument when there are problems with construction costs being twice as high. There must be entirely different price drivers than just a bit of insulation.

he can easily afford kfw40 as well.

Ah, so suddenly you admit that kfw40 is a losing proposition? And you will be surprised at the extortionate surcharges that are sometimes charged for solid construction. It is a luxury feature that is priced accordingly.

Ah, so suddenly you admit that kfw40 is a losing business?

Since no one knows how energy prices will develop, it may go either way. But again: You have no sense of proportionality at all. Ah, but here quickly "the calculation": 10,000€ insulation (ground slab, roof) 5,000€ walls somewhat better insulated, better windows 4,000€ battery storage 0€ photovoltaic (pays for itself) -19,500€ more subsidy for KFW40+ instead of KFW55 ----------------------------- 500€ left over