Description of Chatham House
Chatham House is a mixed use building at St James's Square in St James's, London SW1.
The house was built in 1736. It is now home to The Royal Institute of International Affairs.
The City of Westminster's blue plaque next to the entrance says:
"Look left to St James Square and right to St James's Church on Jermyn Street. They were all the inspiration of one man: Henry Jermyn, Earl of St Albans, K.G., 1605-1684, Diplomat, favourite of Queen Henrietta Maria and founder of the West End; who died in this house, on this site."
The nearest underground station is Piccadilly Circus (Piccadilly and Bakerloo lines).