Gerrard House

The Gerrad House was a hotel in England.

Sarah Jane Smith wanted to marry Peter Dalton there. However Peter Dalton had made a contract with the Trickster. When he marries Sarah Jane then she would forget about the aliens and about protecting the Earth.

So the Eleventh Doctor arrived to stop the wedding. Finally Peter Dalton took back the contract with the Trickster. (TV: The Wedding of Sarah Jane Smith)