Hello everyone,
I went to the viewing again with an acquaintance.
He himself is a master craftsman and has completely renovated his own house and also done a lot of refurbishment, and he also helps his craftsman buddies again.
Even though his standards are quite high, his opinion was conclusive.
Investment in the main house: approx. 25,000
Inside: new floors, insulate and expand the attic, painting,
Outside: parking lot in front of the house, driveway, terrace
Old semi-detached house:
Electricity, pipes, roof, kitchen, bathroom... basically more or less everything new. 50,000
All under the premise of having some work done without an invoice.
Certainly, you don't have to do everything at once.
That means for about 230,000 you get a residential house + a small semi-detached house (80 sqm), which you can use as a holiday apartment.