From Jilly Cooper novels, I think this is the sort of house Rupert Campbell-Black lived in although I might keep looking as there are no equestrian facilities with this one so maybe not. And it's not as old money as I think his house would be.
www.rightmove.co.uk/properties/128763584#/media?channel=RES_BUY&id=media2&ref=photoCollage
So post one of your own - say the book or film and post a link to the house you think suits the characters or the house you imagined from the author's description...