A spectacular Ian Fleming-inspired triplex apartment has come to market at Twenty Grosvenor Square, the Mayfair building that once served as General Dwight D. Eisenhower’s London headquarters during the Second World War.
Available to let through Beauchamp Estates for £25,000 per week (£1.3 million a year), the 5,750 sq ft residence – known as 0.07 – spans three floors of the grand Edwardian building and blends its wartime heritage with the glamour of James Bond.
Designed as a homage to Bond author Ian Fleming, who visited the building during the war while serving in British Naval Intelligence and reporting to Eisenhower on deception plans, the apartment combines historical significance with meticulous modern craftsmanship.
Originally constructed in 1933-35, Twenty Grosvenor Square became a military HQ in 1939 and, from 1942, the London base of the Allied Forces, where Eisenhower met with Winston Churchill and planned the D-Day landings. The building later served as the US Navy’s European headquarters until 2009.
24-HOUR CONCIERGE
Between 2014 and 2017, developer Finchatton and architects Squire & Partners oversaw a £250 million transformation of the property into one of London’s most exclusive residential addresses.

Picture credit: Beauchamp Estates
The façade and grand marble-floored lobby – complete with the giant eagle emblem of its American past – were restored, while interiors were reimagined under the management of Four Seasons, which provides residents with 24-hour concierge, housekeeping, in-residence dining and car valeting.

Pic credit: Beauchamp Estates
Twenty Grosvenor Square now houses just 37 residences, with amenities including a 25-metre swimming pool, spa, gym, cinema, business suite, garden library, and wine cellar.
ANOTHER LEVEL
The 0.07 residence occupies three levels connected by lift. The upper floor features a formal reception and dining room with 3.7m-high ceilings, four sash windows overlooking Grosvenor Square, and a white marble fireplace beneath grey engineered wood flooring.

Pic credit: Beauchamp Estates
Bespoke furnishings include a Stark rug and a dining table seating ten, with a minimalist kitchen in dark cabinetry adjoining an informal breakfast area.

Pic credit: Beauchamp Estates
A Lee Broom pendant chandelier illuminates the stairwell, leading down to the middle level, which contains three ensuite bedrooms, two with access to a private terrace.
The principal suite channels Bond’s Scottish heritage with tweed detailing, a private lounge, bespoke joinery in the dressing room, and a monochrome marble ensuite with dual vanities and a freestanding bath.

Pic Credit: Beauchamp Estates
LICENSE TO PLAY
The lower level is devoted to leisure and entertainment, featuring a cinema and games room with wool pinstripe wallpaper, vintage film posters, and black-and-white photography.

Pic credit: Beauchamp Estates
A handcrafted pool table, marble-topped bar – complete with Vesper Martini glasses and cocktail shaker – and red velvet drapes conceal floor-to-ceiling glazing that opens onto a double internal garage, allowing residents to showcase supercars from the comfort of the lounge.

Pic credit: Beauchamp Estates
The specification includes a Crestron home automation system, air conditioning, underfloor heating, and state-of-the-art security. Residents enjoy access to the landscaped gardens of Grosvenor Square, with Mount Street, Bond Street and the West End all a short walk away.
HOMAGE TO BOND

Jeremy Gee, Managing Director of Beauchamp Estates, says: “History and luxury meet at this spectacular 5,750 sq.ft. triplex residence at Twenty Grosvenor Square, the former HQ of U.S. General Dwight D. Eisenhower, which is known as 0.07, in homage to James Bond author Ian Fleming, who visited the building as a naval intelligence officer reporting to Eisenhower.
“Now available to let, its immaculately dressed living spaces are ready to welcome their next resident.”
UNPARALLELED OPPORTUNITY

Laura Hutton, Lettings Negotiator at Beauchamp Estates, adds: “With three ensuite bedrooms, a spectacular entertainment floor with bar and views onto a private internal garage for supercars, this stylish triplex offers a discerning resident an unparalleled opportunity to reside on one of Mayfair’s most iconic garden squares.
“Features include VIP bedroom suites, spacious reception area and a passenger lift connecting the three floors, complete with access to the luxurious on-site health spa and lifestyle amenities within Twenty Grosvenor Square, managed by Four Seasons.”








