Like the hidden Tyburn River flowing beneath London’s surface, Mr Porter London from the Entourage Group reveals itself discreetly below the Hilton Park Lane hotel in Mayfair.

“We immersed ourselves in the history of Mayfair and its old market—once a hub of commerce, indulgence, and debauchery in the mid-18th century,” says Alon Baranowitz, founding partner at design and architecture studio Baranowitz + Kronenberg.

At street level, a single copper door is the only hint of the 2,297-square-foot space concealed below. Beyond it, guests enter a monochrome foyer that gives way to a sculptural spiral staircase—“a journey into the unknown and the beginning of an extraordinary adventure,” Baranowitz says. “It’s a metaphor that captures the essence of curiosity and the willingness to venture beyond the familiar, leading to experiences that challenge perceptions of reality.”

Indeed, the unfamiliar unfolds in the subterranean space where traditional, masculine notions of a steakhouse are reimagined through a more sensual, feminine lens. A mirror-polished copper ceiling creates a sense of verticality and expansiveness, while a palette of brushed metals, neutral stone, and velvet lends a soft richness.

In the main dining room, warm tones of brass, copper, and gold are illuminated by uplighting, anchored by a 360-degree bar designed for both intimate and social interactions.

“Restaurants have transformed into event spaces,” Baranowitz adds. “It’s where the quotidian self is momentarily suspended in local and translocal histories and experiences, allowing for one of the essences of the modern self to materialize: its unique desire for originality and authenticity. If our guests leave with that aftertaste, they will embrace Mr Porter as their own, marking the beginning of a beautiful friendship.”

This article originally appeared in HD’s May/June 2025 issue.