House renovation, year of construction 68, mold and co

In my opinion, the core question has not been asked/answered:

Where does the moisture come from?

I don’t find the question relevant anymore when looking at the condition of the house.
It would be worth questioning if there were one or two damp spots and only there to fight the mold problem. But here the whole house is contaminated – I would have had a physical problem after just visiting, because I stayed there.
The house is dilapidated – and not suitable for a family looking for a home.

How do you assess the situation where the mold is only behind the wallpaper but apparently has not penetrated through the wallpaper? Wouldn't the mold then be only "superficial" and relatively easy to remove?

I would not write off or demolish the house immediately, but like others here, I believe that one should first take a closer look at what the cause is and how it looks beneath the surface. Perhaps remove and chip away a bit as a test. Then assess the remaining substance and see to what extent it can be renovated according to one's own standards.

200k or more for renovation is still cheaper than tearing down and rebuilding.

Wouldn't he be superficial if he were on the wallpaper? After all, he originates from the masonry.

No idea what your budget is. But in this district there are quite a few more offers that may not have this plot size, are still available for under €200,000, but are at least more contemporary, seemingly dry, and not horrendously expensive. Do you really have to stick to this low-budget route, only to then deal with moldy rooms or a totally rundown house???? :eek:

Roughly €300 to €350k. That basically rules out this property, because with the mold problem it becomes too risky. ... One just came in today... built in 1890, currently rented for €119k... energy rating H but at least livable.

Roughly 300 to 350 k.
That basically takes this property out of consideration because with the mold problem, it becomes too risky.

... One came in today... built in 1890, currently rented for 119 k...
Energy rating H but at least habitable.

Yes, come on, show me the listing number. I'm curious :-)

... Today one came in... built in 1890, currently rented for 119k... Energy rating H but at least habitable.

I think you're making the mistake of only going for bargain houses, where it can eventually turn into a money pit. Just take a look at the houses within your budget where not much needs to be done. Maybe eventually the bathrooms and so on.