country house
US /ˈkʌn.tri ˌhaʊs/
UK /ˈkʌn.tri ˌhaʊs/

1.
casa de campo, mansión rural
a large house in the countryside, especially one that is or was formerly owned by an aristocratic or wealthy family
:
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They spent their summer holidays at their beautiful country house.
Pasaron sus vacaciones de verano en su hermosa casa de campo.
•
The old country house was converted into a luxury hotel.
La antigua casa de campo fue convertida en un hotel de lujo.