$20m Omani royal family elite Mayfair mansion HQ, now London mega-mansion for sale

The former private family office HQ for a member of the Omani Royal family elite, a grand Edwardian mansion on Chesterfield Hill has been transformed behind the retained façade into Mayfair’s finest new ultra-prime turn-key residence.

It provides almost 4,395 sq.ft. (408.1 sq.m.) of luxurious interior designed living space including a palatial elliptical staircase, grand reception rooms, four/five VIP bedroom suites and a spectacular cinema/club room: for sale via selling agents Wetherell.

One of the finest residences on Chesterfield Hill, the four storey double-fronted mansion has grand brick façade with stone pilasters, pediment and dressings complete with multi-storey stone bay windows and ornamental balconies.

The mansion was originally built in the early 1900s for a City of London banker. After World War Two the building was converted into offices and for many years served as a low-key private family office HQ for a member of the Omani Royal family elite.

In 1997 the Omani private family office relocated and the mansion on Chesterfield Hill was sold and converted back to its original use becoming a 3,385 sq.ft. single residential dwelling over five floors, used primarily as a premium rental investment.

Several years ago the Chesterfield Hill mansion was acquired by the current vendor and behind the retained façade the property has been completely remodelled and substantially extended with a new basement floor added.

Ideal for a Gulf Royal, American or Indian business tycoon or European elite family, the mansion has brand new interiors to all six floors with an ultra-prime, state-of-the-art specification, luxury amenities and the latest in home entertainment and security. Wetherell highlight that it is one of the finest new residences currently for sale in Mayfair.

Providing substantial lateral living space over basement, lower ground, ground and three upper floors the new mansion has on the ground floor a grand marble floored entrance hall graced with Swarovski crystal chandeliers bespoke designed by Manooi, the award winning Hungarian design house led by master atelier János Héder.

The marble entrance foyer leads into the spectacular staircase hall which rises through all floors of the house. With a central multi-storey atrium with waterfall chandelier, the cantilevered elliptical staircase rises from basement to top floor, with the staircase and landings crafted from the finest Botticino marble, with Swarovski crystals installed in intricate bespoke designs in the marble flooring.

The entrance foyer also gives access to a guest powder room and the main reception room, a double volume living space with contemporary style coffered ceiling with Manooi chandeliers, a feature fireplace crafted from one block of Marron Imperial marble, bespoke joinery with mirrored niches and custom design wall pannelling and feature lighting. The room is beautifully dressed with bespoke design furniture.

On the lower ground floor is the family kitchen and dining room, the fully fitted kitchen custom designed by Smallbone with hand painted high-gloss white and black units and cabinets, Ebony coloured fine stone countertops and integrated Gaggenau appliances. There is a guest power room located off the staircase hall on this floor.

The leisure floor in on the level below has ceiling skylights to provide natural light and offers a spacious private cinema and a club room with bespoke wall pannelling, cocktail bar and bar stools.

The mansion has two principal bedroom suites. The first occupies the entire first floor with four large bay windows and a marble ensuite bathroom with bathtub and separate marble walk-in shower. On the second floor is the other principal suite, with a bedroom, walk-in dressing and bathroom.

The first and second floors could be arranged to serve as a duplex VIP principal suite with main bedroom, two ensuite bathrooms, walk-in dressing room and bedroom/second walk-in dressing room. On the top floor are two VIP bedrooms, one opening onto a private terrace, and a further marble bathroom.

The mansion has been finished to an exacting ultra-prime specification with Bang & Olufsen TV/smart screens to the cinema and all bedrooms, Smart Home entertainment by Crestron and advanced security system by Banham. The luxurious finishes include 13 different types of the finest marble and rare stone including Bianco Fantastico marble, Namibian white marble and four different types of Onyx. There is air conditioning to all principal rooms and underfloor heating to the leisure floor, kitchen and dining floor, ground floor and all bathrooms.

Peter Wetherell, Founder & Chairman of Wetherell says: “This magnificent newly remodelled Edwardian mansion on Chesterfield Hill is one of the finest new residences currently for sale in Mayfair. Formerly used as the private family office HQ for a member of the Omani Royal family elite the mansion has been transformed into a magnificent turn-key residence that is ideal for a Gulf Royal, American or Indian business tycoon or European elite family.”

The mansion on Chesterfield Hill is for sale with a guide price of £15,000,000 (freehold). For further information contact selling agent Wetherell on Tel: +44 (0)20 7529 5566 E: [email protected] or visit www.wetherell.co.uk