Iveagh House is the headquarters of the Department of Foreign Affairs and Trade in Dublin. It is also sometimes used colloquially as a metonym referring to the department itself. Iveagh House was originally two houses, nos 80 and 81 St Stephen's Green. No. 80 was designed by Richard Cassels in 1736 for Bishop Clayton. It was later the home of barrister and Master of the Rolls John Philpot Curran.