Follow in the fashionable footsteps of Gianni Versace and fall in love with the Milanese style of 50 Charles Street. Though buyers will need £15million to snap up the Grade II listed Mayfair mansion the Italian fashion house founder so nearly called home.

Built in the 18th Century, the 5,756sq ft of luxury was re-designed with a diamond patterned marble entrance hall, glass conservatory and paved terrace to spark Versace’s interest in 1995. It has now been released on the market by Wetherell.

Partner at Stevenette Company Peter Stevenette, who worked on the conversion project when he was a director at DTZ Residential, said it had been “cloaked in confidentiality”.

“This was a substantial Mayfair property that was converted from former lawyers offices into a luxurious single house,” he said.

“I clearly recall the dramatic transformation from a tired and underwhelming office building into a stunning Mayfair residence of which the triple height glazed conservatory was a major attraction.”

The modifications were made to entice Versace to buy at the same time he was looking for a home close to London’s financial markets.

By July 1997, the transformation was 70% complete but, tragically, the style icon was shot in the same month, at the entrance to his Miami Beach Mansion. The conversion was then downscaled and sold to a businessman.

Wetherell chief executive Peter Wetherell said the property would appeal to someone looking for a “statement home” with plenty of space to entertain.

The traditional facade has been retained and behind it there are four bedrooms, three reception rooms and the largest conservatory of its kind in the West End.

The first floor houses a grand reception room adorned with gold leaf ceiling coving, carved wood and a marble fireplace.

There’s also a master bedroom suite, separate study and home office among other elements of luxury such as a walk in dressing room.

A private lift serves all floors and there are extensive vaults dedicated to storage.

Peter said: “The mansion is a striking fusion of the highly traditional and the contemporary, with a brick front and a glass back, classic rooms and modern open plan spaces.”

For more information call Wetherell on 020 7529 5566 or go to wetherell.co.uk or knightfrank.co.uk .