Trent Park House of Secrets

We are creating an immersive learning experience for national and international visitors through the meticulous restoration of one of London’s grandest houses. 

Visitors will journey through magnificently restored and furnished rooms that were the backdrop to Sir Philip Sassoon’s socialite and political world, where he hosted some of the most influential statesmen, journalists, royalty and politicians in the 1930s.

Following Sassoon’s death in 1939, Trent Park House began its second chapter as a wartime surveillance centre. The new museum will unveil the extraordinary story of the ‘Secret Listeners’ – intelligence operators hidden in the basement – whose eavesdropping of senior German prisoners led to some of the most important intelligence breakthroughs of WWII.

This is an astonishing story of espionage, courage and creative deception which has remained untold until now. Opening Spring 2026