Bringing it to the fore is the Four Seasons Hotel at Ten Trinity Square, which this week – after much anticipation – opened its Luxury Residences in the heart of its Grade II-listed heritage building.

London’s hotels are not short of dazzling penthouses. Last year Claridge’s unveiled its £60,000-per-night penthouse complete with no less than 75 Damien Hirst artworks and a nine-metre heated rooftop ...