mandarinoriental.com Unravelling over 15 Georgian townhouses – seven of which are listed – the arrival of The Mayfair Townhouse imparts a dose of British flamboyance to London’s thriving hotel scene.

Across a narrow, quiet lane just off busy Piccadilly and two blocks from the Green Park tube station, this refined yet unpretentious property claims to be the second oldest hotel in London (opened ...