country house

US /ˈkʌn.tri ˌhaʊs/
UK /ˈkʌn.tri ˌhaʊs/
"country house" picture
1.

a large house in the countryside, especially one that is or was formerly owned by an aristocratic or wealthy family

:
They spent their summer holidays at their beautiful country house.
The old country house was converted into a luxury hotel.