Kfw55 or Kfw70?

Hello everyone,

we want to build a single-family house in solid construction. Our current favorite (Massivhaus Mittelrhein) builds standard Kfw55. It is also possible to have Kfw 70 built and save some money (I am currently finding out exactly how much).
I have often read that the higher energy standards (55, 40, Passive House) hardly pay off.
What would you choose? How much should the price difference be (base price KFW 55, villa 150m2 for 210 TEUR) to decide for one or the other?
Thank you very much,

Nina

That is probably difficult to say so generally, because apart from the money there are also soft factors like living comfort. However, I would like to say that 150 m² for 210 TEUR with Kfw 55 in Hessen represents quite a basic equipment and quite a bit will be added on top. In general, however, the tenor is that KfW 55 is done more for the green conscience than for economic considerations.

Oh yes, it would of course also be important to know how the value is reached, vulgo where the differences in the equipment (55 to 70) lie.

VG

K1300S