.
I don't know if this is a serious question or a troll, but I will answer anyway. The item you have liked to is a plot of land with a broken old barn on 377m2, and has been tax foreclosed by the town, and its STARTING price at town auction is 3200 euros (which is its outstanding tax bill). I think your implication that my girlfriends grandfathers house, after looking at the photos, could be classed as only fir for demolition' would probably offend her greatly, so please excuse me if I don't pass on your comment
No, actually if you read it again it fits perfectly.
377 m² equals ~ 400 m²
The description mentions a 2 story house (which we see in the photos), a shed (which we see in the photos) and a storage facility (which we see in the photos).
The given building year 1900 fits the prevalent architecture of the time and place we see in the photos.
The house is described as not inhabited (which we see in the photos), free standing (which we see in the photos), having "simple" fittings (which is code for no heating (which we see in the photos)), 100 m² of living area (which fits the photos) and condemned (which fits the photos).
Now why it would only cost 3200 Euro while yours is claimed to be estimated at 25000 Euro is an interesting question. An interesting question indeed. I wonder why that is.