Firbourne House

Firbourne House was a hotel near London. In 2008, Donna and Sylvia Noble and Wilfred Mott went there for a Christmas break, after Donna won a trip to the hotel on a raffle ticket she found after Jival Chowdry laid her off. While they were there, a replica of the Titanic crashed into Buckingham Palace, oblitering London. (TV: Turn Left)

Behind the scenes
The house portraying Firbourne House, Egerton Grey Country House Hotel, was also used as Lavender Lawns in The Sarah Jane Adventures episode Eye of the Gorgon.