1 Mayfair, a seven-storey apartment block in London’s prestigious Mayfair district, is set to redefine luxury living upon its completion in 2026. Designed by Robert A.M. Stern Architects, the development replaces a post-war multi-storey car park, restoring the scale and rhythm of the historic neighbourhood. The building’s design features a six-storey mansion house combined with a four-storey townhouse-like wing, framing two sides of a reconstituted Audley Square. The façade along Hill Street presents a unified mass with entry porches, stacked bay windows, and a colonnade of paired columns, reminiscent of a Georgian terrace. On Waverton Street, a loggia shelters a motor court leading to a second lobby, connected to the Audley Square entry by an elliptical stair and passageways encircling a central garden court.
The development comprises 29 residences, including lateral apartments, penthouses, townhouses, and five pieds-à-terre. Each residence is classically organised, with axes and symmetries, and features gracious foyers and galleries that reflect traditions of English residential planning. The building steps back as it rises, providing each residence with private outdoor space. At the top, two duplex penthouses and one triplex, served by private elevators, enjoy significant rooftop terraces.
The extensive basement, 27 metres below ground at its deepest point, houses a health spa featuring a 20-metre swimming pool, parking, and other amenities. The façades are clad with 23,279 pieces of hand-set Portland stone, steel, and other reinforcements, weighing over 9,800 tonnes, equivalent to 2,800 HGV lorries. The interiors are crafted with exceptional attention to detail, including a rotunda with a hand-painted frescoed ceiling, a grand reception room with a double-height ceiling and 5.5-metre-high French windows overlooking the garden, a Crystal Gallery made from over 1,264 hand-set cast glass pieces, and a Garden Gallery with seating areas opening directly onto the central courtyard garden.
The development is managed by Dorchester Collection, offering luxury services that include full property management, concierge, and hotel-style amenities. Residents have priority access to The Dorchester’s restaurants and facilities. The residences are designed to offer an unparalleled living experience, setting a new benchmark for quality and artistry in the London ultra-prime marketplace.
1 Mayfair is located in the heart of Mayfair, a district renowned for its elegance and sophistication. Residents are mere moments away from the expansive greenery of Hyde Park, perfect for leisurely strolls or energetic workouts. The vibrant streets of Mayfair are filled with high-end boutiques, fine dining establishments, and cultural venues, ensuring that all the best of London is easily accessible.
The development is overseen by luxury property developer Caudwell, with architecture by Robert A.M. Stern Architects, interiors by J.P. Molyneux Studio, and marketing visuals by The Boundary. The project is scheduled for completion in 2026, with the main sales phase beginning in 2026. 1 Mayfair is poised to become London’s most coveted and prestigious residential address, offering peerless design, exceptional amenities, and coveted exclusivity in the heart of Mayfair.
The design of 1 Mayfair adapts Mayfair’s architectural traditions for contemporary living. The exterior façades reinterpret Georgian architectural precedents with finely carved Portland stone cladding, handcrafted metalwork, and large timber windows that maximise views and natural light. The interiors are designed to offer an unparalleled living experience, setting a new benchmark for quality and artistry in the London ultra-prime marketplace.
1 Mayfair is a testament to exceptional craftsmanship, rich provenance, and distinctive flair. The development blends elegance with modern, contemporary living, honouring the architectural heritage of its environment in West London while curating an elevated lifestyle. With its completion in 2026, 1 Mayfair is set to become a landmark building that honours the architectural heritage of Mayfair while crafting an elevated lifestyle for its residents.
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