John Nash was one of Britain’s most influential architects and responsible for the majority of grand stucco terraces around London’s Regent’s Park – accounting for many of the capital’s most desirable addresses. Two Regency-style, Grade I-listed houses on Cornwall Terrace are now available for sale, ready to be transformed into one magnificent trophy home.

This rare opportunity, presented by Arlington Residential, is on one of the capital’s most magnificent streets, comprising a historic row of Georgian mansions overlooking Regent’s Park. Nash built the houses in 1820 at the order of Prince Regent (later King George IV), with the brief to make them as showy and opulent as possible. Now a hideaway for the world’s super-rich, anybody looking to live here should have at least £20m to spend and many homes fetch more than £50m.

Together, the two properties span in excess of 9,000 sq ft of living space. The seller has already gained planning approval from Westminster and the Listed Building and Crown Estate for works to begin, thus saving the new buyer a lot of time and money. Both homes have been stripped back to their bare bricks, with full-height windows showcasing captivating views over Regent’s Park. Interiors are therefore at the new owner’s discretion: home cinema? Spa? Library? Calacatta marble or green onyx bathroom? The opportunities are endless.

The suggested layout includes a master bedroom occupying the entire second floor, in addition to four further guest rooms and self-contained staff quarters with a commercial kitchen. Further ideas include a lavish dining area, a club room with media facilities, a gym and a mirrored whisky bar and humidor. The property also benefits from a lift to all floors and secure car parking, as well as a 143-year lease.

The palatial property is moments from Marylebone High Street and the delightful Marylebone Village, with Mayfair close by. A stroll across the park will take you to Primrose Hill and onto leafy Hampstead.

“I believe it is the first of its kind to come on the market in decades,” comments Marc Schneiderman, director at Arlington Residential. “To be able to combine two Grade I-listed Nash-designed houses in Regent’s Park is a very special opportunity.”

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