Purchase opportunity single-family house from the 80s - risk?!

And before I get to the electrical work and the bathroom in an occupied state…

That is one point. When you chisel open walls, you not only make a mess but also break quite a bit. The other point is that you essentially only postpone the costs. If you renovate the bathroom in 5 years, you still have to pay for it and somehow raise the money in addition to the installment. And then there is the question of where to get it from...

That’s the one point. By knocking on walls, you don’t just make a mess but also break quite a bit. The other point is that you basically only shift the costs. If you renovate the bathroom again in 5 years, you still have to pay for it and somehow raise the money alongside the installment. And then the question is where from...

It’s essentially about all the mess. The walls are sealed up again faster than you can look. I was surprised myself! If I were to buy again, I would look more specifically at the electrical system and windows. Of course, windows from the 70s/80s are still okay, but the difference to today’s is huge. But don’t forget to check the thermal conductivity of the building materials, otherwise you might get mold problems in the house!

Interest on credit balances close to zero?
I would definitely use it there, realistically you would otherwise finance the money at at least 4%

No, it is up to 1 percent. Which doesn't really make much difference now…
But just that I can take out 30,000 as an unsecured loan, 70
So a total of 100,000 would be great ;)

Again with this mold fairy tale... I have nothing more to say about it.

On the topic: If you are willing to pay the asking price, then pay it. FOMO is still bad advice and at least I probably wouldn’t be willing to pay it. Of course, someone can always come from somewhere and have so much money. Yes, maybe, but maybe not. And if the house is gone, it's no big deal.

Again this mold story... I'm at a loss for words.

On the topic: If you are willing to pay the asking price, then pay it. FOMO is still a bad advisor and at least I probably wouldn't be willing to pay that. Of course, someone can always come from somewhere and have that much money. Yes, maybe, but maybe not. And if the house is gone, it’s not the end of the world.

That's true. It's not a historical and one-time chance to buy a house now. But we have liked it best for a long time (and we have been actively looking for 3 years)
Especially since it’s not quite the perfect time for us (well, when ever is it?!) The stock portfolio has suffered, my wife is still on parental leave and the energy costs are unpredictable …

We have an inspection with an acquaintance who is the [Gutachter] at the beginning of next week. If no big surprise comes out of it, then we have decided to make a counteroffer to the seller. If he doesn't want to accommodate us at all, then "tough luck"... I will set it at 520TE.