Having started its life as a coach house, this 8,051 square foot mansion situated in the heart of Mayfair has been transformed by London developer K10 Group into a luxury 21st-century property. It perfectly combines period features with the best of contemporary design, with Peter Wetherell, the Chief Executive of the real-estate agency Wetherell, who is handling the sale, describing the property as ‘low-profile from the outside,’ but with ‘everything everyone wants now’ once inside.

It’s façade, which is in keeping with surrounding properties in upmarket Mayfair, provides a glimpse into the property’s history. After a stint as a coach house for the Capel family, the Earls of Essex, the property was purchased by wealthy industrialist Sir Thomas Stepney, in 1814. Fast forward another century, to 1929, and the former coach house was transformed into a brick house.

After a string of owners, the property which came to be known as ‘Culross Cottage’ fell into disrepair. The team at Argent Design were keen to restore the property to its former glory, combining its period features with the luxury synonymous with Mayfair. It is, at present, the only newly built town-house mansion for sale in Mayfair.

The property’s history was taken into account during the restoration process, with the brickwork façade, in addition to the composition of large windows and gable pediment, honouring the original Edwardian design. In order to ensure consistency with architect Ernst G. Cole’s original bijou-brick design, reclaimed bricks were sourced. It is this attention to detail and respect of the property’s history that makes it a real showstopper.

On entering the property, the most striking element is its glass elevator and staircase, fitted for maximum visual impact. Complete with bespoke balustrade, shadow gaps and inset wall lighting, this design element functions not only as a focal point on entry, but also ensures that natural light cascades from the skylight above, flooding through the property and giving it a truly contemporary feel.

Set over six floors, including two at basement level, the fifteen-room house is inspired by international five-star suites and VIP venues and fitted with entirely bespoke furniture, making no compromises on high spec luxury features. From a state of the art pool, gym and sauna complex to a walk-in humidor and wine cellar, the property functions with equal effect as a space for family living and entertainment.

In addition, the ambassadorial house features two master bedrooms, three additional bedrooms, family rooms a lounge and snug.

The contemporary interiors take into account the latest in modern technology and strive to make day-to-day life as easy as possible. This is most noticeable in the contemporary smart kitchen designed by Smallbone of Devizes, where built-in technology scans cupboard content, automatically ordering goods that need to be replenished.

On account of a plot that is both wide and deep, 25 Culross Street provides an abundance of lateral living space, spacious rooms and a private walled garden which is generous in size, by Mayfair standards.

With property in Mayfair remaining consistently desirable property prices can be expected to range from anywhere between £1.5M and £5.25M for a 2 or 3-bedroom property, with £ per square foot ranging from £2,200 p.s.f. to £4,400 p.s.f. Culross House has entered the market at £35,000,000.