Building with or without a basement - experiences

All houses from the 70s are drafty. ....

What kind of wisdom is that?

Link: Tante Gurgel + saving energy in the household + energy + building + modernizing .....

I made no distinction between air leakage and other leakages. Keyword: energy-efficient renovation

Hello,

So according to the unanimous opinion here "waste of money".

Everyone reads what they want to understand

The development plan only allows a building of about 70sqm of floor area - but with an upper floor and a converted attic. In total, you get about 140sqm of living space.

Sorry, I don’t understand .... ground floor + upper floor + converted attic and then 140 sqm floor area?

So now I am supposed to explain where I can wash laundry, where to install heating, where to store groceries, where to store winter/summer clothes, etc. That would have only been possible with immense deterioration of living quality.

Counter-question: what do people do who currently cannot afford a basement? Isn’t it more the case that a sensible room layout should be the "A" and "O" of any planning?

The questions about with or without basement are so individual,

Agreed.

that a blanket answer isn’t possible -

Agreed once again.

even if maybe in NW everyone builds without and in BY everyone with,...

This statement is actually almost correct – at least based on the results from my side job

Rhenish greetings

Hello,

I made no distinction between air leakage and other leaks. Keyword energetic renovation

This link is a veiled advertisement; so I would not overvalue it in your place.

Besides, your statement "in the 70s all houses were leaky" is not generally true, as it suggests that a certain air exchange would have been harmful (with regard to building construction). That is definitely not the case! When I look at the energy saving ordinance today, for example, I much preferred the way windows were installed back then; there was less moisture damage. Today - to achieve the same result - a ventilation system has to be installed. So the question arises, what was more reasonable - from a construction point of view.

Rhenish greetings

Of course you are right. The link was the first one that appeared when you enter house from the 70s. I myself am not at all in favor of a hermetically sealed building envelope, apart from that. But most energy renovations are precisely on houses from that period.

Hello,

But most energy-efficient renovations are indeed on houses from this period

Yes, that is correct. It primarily refers to the aspect of insulation, windows + roof.. Today's renovators, however, pay more attention than five years ago to the combination of windows and insulation; after all, a good start

Rhenish greetings