Construction cost per sqm, affordable vs. expensive providers, construction cost reduction

Now I have to recalculate with 3 beers and Saturday evening.

We take small and solid craft companies and buy the materials ourselves.

Base slab with everything included: 20,000
Shell bungalow 150 sqm: 20,000
Roof frame with ceiling and materials: 30,000
Roof: 20,000
Windows: 20,000
Electrical: 10,000
Heating and water: 10,000
Plasterer: 10,000

That leaves 60,000 for painter, floor, sanitary and other amenities as desired. A photovoltaic system is also included.

Then you have a very solid and healthy house. 36 cm walls with the best thermal insulation values with a healthy indoor climate and without costly ventilation system.

For heating, a used oil heater is sufficient at first. Oil is currently the cheapest heating type. You can build it so that later a heat pump can be installed without problems. 1000 euros with oil tanks is completely enough. And it will run for another 20 years.

And always remember. There is no such thing as can't.

Single-family house M82-112-G from EBH Haus. That would be my tip. I myself have no experience with the company yet, but at that price Kfw 40 is really amazing. And the Google reviews also seem good. No idea if you can really trust that. But it's certainly worth a try.

No, he is building in the flood zone. With that, you're out with 08/15 and Town & Country definitely does not guarantee that your ground floor is waterproof. However, it is also not very suitable for price comparisons.

I think so, just take a look at the HQ10/100 areas of BaWü in the Geoportal. You will be amazed at how many municipalities (and especially in the Stuttgart metropolitan area) are affected by this. Of course, Town & Country doesn't care at first, and maybe neither does the builder if he wants to compare prices here. But no one wants to look into the Ahr Valley again. But you are probably right if a builder naively accepts some reference values here and keeps searching until he finds someone who sweet-talks his budget. Only this is the reason why there are also posts here that describe the consequences.