[corty]

If Italy is anything like Germany in terms of conservation laws, you wouldn't want those buildings even if they were accompanied by a small to medium pile of cash. It will cost you more than building anew to restore usability while observing all the conservatory dos and don'ts.

[LoSboccacc]

and the results might be backward to live in, we used to live in a old cottage house that was renovated, split into a moltitude of small apartment units and sold separately; city council didn't allow to install shutters or to add balconies; with only blinds you get a ton of heat getting in on summer and without balconies we had to dry laundry in house, which was then often moist in winter.

[bromuro]

Rules in Italy about restoration are very detailed, but, depending to the place, restoration using original materials and techniques is not that expensive, it may be even cheaper.

In Italy, at least in my experience, what increases the costs are taxes, and requirements to declare the “habitability” of a place...