If celebrated English architect John Nash were alive today, he’d likely raise a glass at the transformation that’s taken place behind one of his most elegant London façades.
On the edge of Regent’s Park, tucked into the prestigious Cornwall Terrace, a seven-bedroom, six-bathroom home has hit the market for a cool £34.75 million (about $46 million). But this isn’t just another Grade I-listed beauty coasting on its heritage cred. This is a full-scale architectural reinvention for a modern lifestyle tucked behind a façade first conceived by the master of Regency London himself.
In 1811, the Prince Regent (soon to become King George IV) tapped Nash to turn what was once a royal hunting estate into a grand urban park—a sanctuary of curated greenery, sweeping terraces, and palatial villas. Nash laid the plans, and his protégé Decimus Burton brought them to life, including the now-iconic Cornwall Terrace. The result? A corner of the British capital that has remained one of the city’s most coveted addresses for over two centuries.
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The home underwent a full interior rebuild after its 2012 acquisition.
Knight Frank; Savills
Fast forward to today, and this particular Cornwall Terrace mansion is anything but stuck in the past. Acquired from the Royal College of Ophthalmologists in 2012, the residence has undergone a complete internal reinvention. Every square inch of the original interior was stripped away. Floor levels were repositioned, a brand-new core was inserted, and extensive soundproofing was integrated throughout—all in the name of creating a modern, flowing layout that doesn’t just nod to 21st-century living but embraces it fully.
The main bedroom occupies an entire floor of the five-floor main home and includes two lavish bathrooms and two huge dressing rooms. There are four more bedrooms on the top floor and another one tucked down in the basement. The pièce de résistance? A private rooftop garden, something no other home on Cornwall Terrace can claim. Meticulously engineered into the restructured footprint of the house, it offers panoramic views over Regent’s Park’s lake.
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It’s the first modernized property on Cornwall Terrace in nearly a decade, says Knight Frank.
Knight Frank; Savills
The roughly 8,500-square-foot home also includes interiors designed for comfort and elegance, a lift to all floors, and a separate mews house with a single-car garage and two-bedroom apartment, making it “one of London’s most outstanding residential opportunities,” according to Knight Frank’s Declan Selbo.
Stephen Lindsay of Savills St. John’s Wood agrees, noting that turnkey properties with multi-generational flexibility like this one are exactly what today’s global elite are hunting for. “It’s a trophy property in a world-class location,” he says. “And it’s moments from Marylebone Village and the West End.” So while the Nash façade may speak of 19th-century grandeur, the lifestyle behind it is very much of the now.
Click here to see more photos of the London mansion.
Knight Frank; Savills
Authors
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Abby Montanez
Abigail Montanez is a staff writer at Robb Report. She has worked in both print and digital publishing for over half a decade, covering everything from real estate, entertainment, dining, travel to…