The Spy Bar

Hidden below the Old War Office, this is a cocktail bar with real character and a strong sense of place. The spy theme could have been gimmicky, but the room stays measured and stylish, with velvet seating, private booths, and just enough intrigue to suit the setting. Drinks lean classic, with a natural emphasis on martinis and other spirit forward cocktails that fit the mood. What makes it worth visiting is the combination of polished service, privacy, and a setting that feels distinctly tied to Whitehall’s history without overplaying it.