Nothing to some of these, but we once viewed a house which an elderly couple were selling so they could retire to the coast. They'd been there a very long time. The wife had already moved to the new home so the husband showed us round (this was over 20 years ago). It was in a terrible state. Every single room would have needed extensive work. Plaster hacked off, dampproofing, new floors and windows, replastering, probably new roof, kitchen and bathroom totally re-fitted, total redecoration, you get the idea.
Additionally, every single room and passage was stacked with ancient decaying paperback books. There were hundreds stacked against the back wall outside in the garden. The damp and the rain had ruined these books and I don't imagine they were in a good state to begin with. The deluded owner explained that he was a secondhand bookseller and these were his stock. Nobody in their right mind would have paid him any money for any of them.
We knew within two minutes that we weren't going to buy the house, so got out as soon as we could. On our way out, we thanked the owner for his time and got stuck making a bit of small talk about how much interest there had been. 'Oh, quite a bit,' he said, 'but no offers yet. And you won't believe this - we had a couple here last week who said they'd need to spend £100,000 on building work! Can you credit that? What would you spend it on, ha ha ha...'
We smiled and nodded, but once safely away both agreed that £100k wouldn't even have touched the sides of what needed doing there. I see somebody did eventually take it on. Brave.