Mayfair is comprised principally of the London estates of the Grosvenors and the Berkeleys. It has always been an area where the well-to-do resided, building town mansions whose interiors and exteriors revealed a flowering of domestic architecture, from the classicism of Lord Burlington to the extravagant exuberance of those erected by industrialists and bankers. This book focuses on the architectural heritage of Mayfair's lost buildings. It includes numerous illustrations, many published for the first time.