Take the unmarked doors and exclusive air of a private members’ club, throw in London’s passion for all things hipster, add a dash of Wes Anderson oddness, and there you have it: The Zetter Townhouse, a boutique 24-room hotel that embraces luxury and quirkiness in the same breath. This intimate property, hidden down a side street in Marylebone, is designed to feel like you’ve stepped into the world of ‘Wicked Uncle Seymour’. A living room with a roaring fireplace, and ‘family’ portraits doubles as the hotel’s lounge while, by night, the area is filled with young professionals ordering...