villa - a large house with a big garden in a warm country or region (especially one used for holidays).
cottage - a small house, usually in a village or the countryside.
detached house - a house that is not joined to another house.
bungalow - /ˈbʌŋɡəˌləʊ/ - a house that is all on one level (british); a small house that is often all on one level (american).