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Situated in the heart of the city, on a estate the scale of seven soccer fields, sits a residence called Winfield House—the formal residence of the US ambassador to the United Kingdom.

While it is a stately residence, it has through the years gained a reputation for throwing spectacular parties, particularly on the Fourth of July—America's national holiday. This year's celebration showcased Nile Rodgers & Chic entertaining on the lawn for a large crowd of attendees.

A Legacy of Hospitality

Style elite, athletes, and military figures have all been entertained here. As far back as 1825, when the initial site was constructed, its primary use was for entertainment, according to the property's historical information.

President Trump is spending the initial evening of his state visit at the 35-room residence. The Trumps also stayed there in 2019, as did the Bidens in the past.

"This is more than the residence of the diplomat, it serves as a centre of official hospitality," notes a former employee knowledgeable about the estate.

Private and Protected

What the residence isn't is a public site. Situated within Regent's Park, it is exclusive and demands advance arrangements to enter. Visits of the gardens were previously organized by community organizations, but so far this year, access has been restricted.

From the road nearby, the mansion cannot be seen. It is surrounded in trees and provides remarkable seclusion for a central London location.

"It's really difficult to get in there. I regard it as a personal achievement that I managed to get in," recalls one guest who calls the property "magnificent" and shows admiration for the grounds.

Guided visits only allow viewing to the ground floor, which serves as a "very posh" area for events, and the outdoor areas. The upper level is used for the private living quarters of the diplomatic representative.

Being both a home and a site for most American functions, schedules are strict. "It did not involve a case of requesting to come on a chosen date. It was just, you will be allowed to enter on the premises on a set date," adds the individual.

The property features the second-largest non-public outdoor space in central London, according to sources. It contains a grassy area, paved paths, art pieces—and also has room for aircraft to touch down.

Historical Significance

Socialite and heir to the Woolworths fortune Barbara Hutton sold the property to the American authorities for only symbolic amount in the mid-20th century in an arrangement viewed as "most generous" by the leader Harry S Truman.

Hutton had acquired the house 10 years earlier, after it was partly destroyed in a blaze. Authorities allowed her to tear it down and rebuild it in the iconic brickwork Georgian style that still stands today.

She named it after her grandfather, Woolworth, the creator of the Woolworth store network.

With the Second World War about to erupt and her second marriage facing particularly well, she returned to the US with her child in 1939. It would subsequently be revealed that this is when she encountered her next husband—film star Cary Grant—who is reported to have stayed at the mansion with her.

Historical and Modern Function

In the war, the estate was commandeered by the military defense division with personnel allegedly playing football in the gardens.

She returned to London to see what was left of the house at the conclusion of the hostilities—and after the Germans' attacks. She instructed her lawyer and asked that it be handed over to the American officials for restoration—and it has been served as the official residence of diplomats ever since.

History is embedded in the walls of Winfield. The original structure was called a historical title, and as per historical documents, was employed for visually impaired soldiers of World War One. A non-profit of the same name operates currently.

Speaking about American leaders, a source states: "Eventually they all visit, at least one time." The individual explains meeting Trump and his wife the first lady during their previous state visit in 2019, which was "a little bit surreal". They ate at the property with the queen and the monarch before he ascended to the throne.

A famous image of the Soviet leader—the last USSR head of state—and American leader Bush may be one of the most famous moments from the property. The two held a combined news conference there at the G7 summit in the early 1990s.

Politicians have long utilized it for key moments, including international summits, grand state dinners, and bringing together wartime leaders.

Entertainment and Security

The residence has staged many diverse events, per sources.

There have been performances by Duran Duran, the Foo Fighters, and other artists, sometimes in the garden and sometimes within the mansion.

It's also been home to sporting events with the Duke of Sussex participating in an Invictus Games reception there. Michelle Obama got stuck in with a competition, even joining the team event alongside some well-known onlookers.

Style royalty has also graced the corridors of the property. A previous Vogue editor co-hosted a London Fashion Week opening party with the ambassador at the period. A music celebrity was seen too.

Some of the events would attract "thousands" of guests, with the Independence Day parties typically gathering 3,000 or 4,000.

A Hidden Oasis

It's a something of an getaway.

"It is hard to believe you're in the centre of London," remarks one guest.

But what's the most disappointing aspect of the house? One person says its entrance road is "rather modest" in contrast with the remainder of Winfield.

"It's big enough for big vehicles but you cannot get a brigade of guards walking up and things. It's unlike the famous avenue."