In the 1880s, the house had hot and cold running water, central heating, fire alarms, telephones, a Turkish bath suite and a passenger lift - Name the house,and what was most remarkable about it?

Is this 'Cragside' in Northumberland UK?
The country retreat of Lord Armstrong.

It is remarkable in the fact that everything is still intact, exactly as it was built and also has 7 million trees in the grounds.

http://www.ejr.ndo.co.uk/crag.html

Yes Jenny , and the first house to be lit by hydro-electricity.Thanks for the link.