It has mains water, in fact that has all been recently redone for free by the local Gamina, we has issues with it freezing at a sub station on our land which cut off the entire village so something had to be done about that. There are three natural deep water wells throughout the property. I don't know about the sewage actually, but i definitely should. Either way it certainly doesn't have a sewage stream anywhere near by or a cesspool. Has mains electricity obviously but not gas.
One of my first thoughts also until I saw that beautiful stairs case.
Yes one company mentioned building an external elevator to service that.
I could be the madam and swish down the stairs to greet the punters....:)
I've stayed there on my own a few times for a few days, pretty spooky wandering around at midnight with nothing for company except the cat. I've seen way too many horror films for that kind of thing.