Seaford House

Seaford House, formerly known as Sefton House, is a historic mansion located in Belgrave Square, London. Built in 1842 by architect Philip Hardwick for the 3rd Earl of Sefton, this Grade II* listed building is renowned for its Beaux-Arts style interiors. After a varied history, including requisition during WWII and significant damage from bombing, it was restored and became home to the Royal College of Defence Studies. The house is open to the public during Open House Weekend in September and has been featured in various films and television series, including the 1979 miniseries SOS Titanic and the BBC's The Honourable Woman.