Mayfair’s most expensive new home: £50m ‘Glass Mansion’ – built where Mussolini’s UK ambassador once lived – boasts a four-car garage, private spa, cinema and a 1,251 square-foot roof garden
- Inspired by La Maison de Verre in Paris, the £50m Glass Mansion provides 13,583 square feet of living space
- Includes cinema, private spa with swimming pool, a 1,251 square-foot roof garden, and a four-car garage
- Located on the site of Italian Count Dino Grandi’s ‘lost’ mansion, of which only the Edwardian stables survive
A gleaming glass palace on Mayfair’s Down Street Mews has gone on sale for a cool £50million – and has instantly become the exclusive London district’s most expensive new home.
Inspired by La Maison de Verre in Paris, the Glass Mansion is actually two homes which are on sale for £25million a-piece, but can be combined to create a palatial home for £50million.
The Glass Mansion as a whole provides 13,583 square feet of luxurious living space, a cinema, private spa with swimming pool, a 1,251 square-foot roof garden, a 226 square-foot garden patio and a spacious four-car garage.
The stunning mansion is situated behind a private gated courtyard in Mayfair’s Down Street Mews and is located on a half-acre acre site that used to house former Italian Count Dino Grandi’s ‘lost’ mansion, of which only the black-brick Edwardian stables survive. Grandi was Italy’s UK ambassador under Mussolini.
The stunning glass mansion on Mayfair’s Down Street Mews has gone on sale for a cool £50million and has instantly become the exclusive London district’s most expensive new build home. Pictured, one of the mansion’s various bedrooms
The Glass Mansion as a whole provides 13,583 square-foot of luxurious living space and even features an indoor pool
In both mansions, the family rooms all benefit from two sets of glazed Juliette balconies and are finished with solid Oak parquet floors and bespoke joinery
Velour: The houses feature cinemas with stylish decor, state-of-the-art House One system and CCTV security
Inspired by La Maison de Verre in Paris, the Glass Mansion is actually two homes which are on sale for £25million a-piece, which can be combined to create a palatial mansion – if you have a spare £50million lying around
The luxury living space is on sale via joint sole agents Beauchamp Estates and Central Estates.
The two adjoining houses are ready for immediate occupation, and were created by Richard McCarthy of architectural practice Scott Brownrigg and a Mayfair developer.
The four-storey clear and frosted glass facades were inspired by the iconic La Maison de Verre (House of Glass), built in 1932 in the 7th Arrondissement of Paris.
Access to the houses is via a gated entrance which is located off the mews courtyard, which is protected and hidden behind a main set of gates fronting Down Street, providing the Down Street Mews property with exceptional security and privacy.
The four-storey clear and frosted glass facades were inspired by the iconic La Maison de Verre (House of Glass), built in 1932 in the 7th Arrondissement of Paris
The stunning glass mansion includes a hidden away winter garden featuring wooden decking with built-in lighting and an array of greenery
A 226 square-foot garden patio and four car garage are situated behind a private gated courtyard in Mayfair’s Down Street Mews
The first glass house provides 6,619 square feet of living space, with a 543 square-foot roof garden and 226 square foot of patio.
It features four bedrooms, three reception rooms, family kitchen and breakfast room, study, passenger lift, private cinema, gymnasium and spa with lounge deck, swimming pool, sauna, steam room and changing facilities and two parking bays in the underground garage.
The second offers 6,964 square foot of living space, with a 708 square foot roof garden.
It features four bedrooms, two reception rooms including an open plan family kitchen and breakfast area, passenger lift, private cinema and a spa floor with hamman, sauna, steam room and changing facilities, complete with two underground parking bays.
The open plan family kitchen and breakfast area features modern wooden decor, a central island boasting a chic marble design and state-of-the-art integrated appliances
The opulent living space includes sophisticated oak furniture, bright lighting and tasteful modern artworks
The principal bedroom suites have a bright walk-in dressing room with mirror-lined built in wardrobes
The clear and frosted glass facades and the floor-to-ceiling windows and skylights allow light to cascade into the living spaces, providing an extremely bright and airy ambience
As a single mansion, the property would provide eight bedrooms, four reception rooms, two passenger lifts, games room, gymnasium, dance/pilates studio, private cinema, children’s media room and a private health spa on its own dedicated floor with swimming pool, leisure deck, hammam, two saunas, two steam rooms and changing facilities, with an underground four car garage.
In both houses, the reception and family rooms all benefit from two sets of glazed Juliette balconies and are finished with solid oak parquet floors and bespoke joinery.
The fully-fitted family kitchen and breakfast rooms have a central island and state-of-the-art integrated appliances.
Temperature trained: The home features comfort cooling and underfloor heating throughout and the home’s living spaces features modern and chic furniture
The luxury mansion features a stylish game room which includes a television, sofa and ping pong table and leads out to the garden through glass doors
The elegant bedroom features rich hues and soft pastel colours, built in spotlights and a huge padded headboard
Another main bedroom features a fashionable grey colour-scheme with matching furniture and the same built in spotlights
The principal bedroom suites have a walk-in dressing room with mirror-lined built in wardrobes and a marble clad main bathroom.
The other main guest bedrooms have luxurious marble clad ensuite bathrooms.
Other features include polished concrete feature stairwells and landings, winter garden and skylights to bring light into living spaces, high-speed Otis passenger lifts, comfort cooling and underfloor heating throughout, Home Automation System, cinemas with state-of-the-art House One system and CCTV security.
Both houses have an entire floor dedicated to a luxurious private spa. In the first house the spa has a swimming pool, 8.15m long, 1.35m deep, with underwater LED lights and a Jetswim wave machine exerciser.
The mansion includes a bright home office featuring stylish modern furniture and a muted grey colour scheme
The living room boasts glass doors and built in spotlights alongside minimalistic furniture paired with modern art pieces
The home features a gymnasium featuring weights, a treadmill, exercise bike and elliptical machine
There is also a Hemlock sauna with Obeche benching and a sauna with ‘Starry Sky’ fibre optics in the ceiling.
In the second house, the spa has Drom UK designed wellness area including a Hamman, Sauna, relaxation area, experience shower and an ice fountain to cool muscles.
Down Street Mews was originally occupied by a black brick Edwardian mansion and stables, built in 1920, accessed by a gated carriage driveway off Down Street.
In August 1932 the mansion became the London home of Count Dino Grandi, Benito Mussolini’s Ambassador to the UK.
At his mansion Count Grandi entertained Lady Alexandra Curzon, his mistress and the wife of ‘Fruity’ Metcalfe, equerry to Edward, Prince of Wales, and other Italophile guests including Diana Mitford, ‘Fruity’ Metcalfe, Lord Lloyd, Lloyd George and Wallis Simpson.
The other main guest bedrooms have luxurious marble clad ensuite bathrooms,featuring walk in showers
The main bathroom features a marble clad walk-in shower lined with mirrored walls
In July 1939 Count Grandi was recalled to Rome by Mussolini who was under pressure from Adolf Hitler, enraged by Grandi’s attempts to deliver peace between Italy and Britain.
In 1940 a Luftwaffe bomb destroyed Grandi’s Down Street Mews mansion, with only the stables by the entrance courtyard surviving; in 1943 Grandi got his revenge, triggering the coup which overthrew Mussolini and started peace negotiations with the Allies.
After 1945 Grandi’s mansion site off Down Street Mews was divided with the front portion, including the courtyard and surviving stables, transformed into commercial premises, with the remainder to the rear turned into post-war housing.
Five years ago a Mayfair developer acquired the commercial premises fronting onto the mews courtyard with a vision of returning the site to it’s residential origins.
The marble clad main bathroom features modern decor, his and hers sinks and built in spotlights
The incredible living space also features a Hemlock sauna with Obeche benching and a sauna with ‘Starry Sky’ fibre optics in the ceiling
After planning and a three year construction programme the new glass houses at Down Street Mews are finished and ready for immediate occupation.
Gary Hersham, Founding Director of Beauchamp Estates said: ‘The houses have been designed so that they can be easily configured into a single 13,583 sqft mansion interconnected on all floors providing eight bedrooms, four reception rooms and two levels of leisure facilities.
‘In the £20 million plus ultra-prime marketplace we have found that COVID-19 has been a ‘gamechanger’ with buyers now choosing houses, where they can completely control access and their living environment, in preference to apartment buildings where there are the issues of shared access, visitors they don’t know and staff meeting lots of people.’
Both houses have an entire floor dedicated to a luxurious private spa featuring marble decor and as sauna room
After planning and a three year construction programme the new glass houses at Down Street Mews are finished and ready for immediate occupation. Pictured, the mansions in-house spa
The home features two high-speed Otis passenger lifts which travel throughout the four-floors of the luxury mansion
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