Situated in central London, on a property the size of multiple soccer fields, sits a mansion known as Winfield House—this formal home of the US diplomat to the United Kingdom.
While it may be a stately home, it has through the years become known for throwing impressive parties, especially on the Fourth of July—America's Independence Day. The most recent event showcased a performance by Nile Rodgers entertaining on the grounds for a large crowd of guests.
An History of Entertainment
Fashion's elite, athletes, and wartime leaders have all been hosted here. Even 1825, when the original site was built, its primary use was for entertainment, according to the property's official records.
President Trump stayed at the first night of his state visit at the spacious residence. His family also stayed there in recent years, as had the Bidens in the past.
"It's not just the residence of the ambassador, it serves as a hub of official hospitality," says a former staff member familiar with the property.
Exclusive and Secure
One thing the residence cannot be called is a public site. Situated within Regent's Park, it is private and requires planning to gain access. Visits of the grounds were previously arranged by community organizations, however currently recently, permission has been restricted.
Standing on the street outside, the mansion cannot be seen. It is surrounded in woodland and offers remarkable seclusion for a central London property.
"It's really difficult to gain entry. It felt like a personal achievement that I was able to enter," says one guest who calls the house "breathtaking" and shows awe for the landscaping.
Tours permit viewing to the main level, which serves as a "very posh" area for receptions, and the outdoor areas. The first floor is used for the private living quarters of the diplomatic representative.
Being both a home and a site for most US functions, schedules are tight. "It did not involve a matter of we would like to come on a chosen day. Instead, it was simply, you will be allowed to come on the premises on a set date," adds the source.
The estate features the second-largest non-public garden in central London, as stated by sources. It includes a grassy area, stone paths, sculptures—and additionally has room for helicopters to land.
Past Significance
Wealthy heiress and beneficiary to the Woolworths empire Hutton transferred Winfield to the US government for only dollar in 1946 in an arrangement described as "most generous" by the leader Truman.
Hutton had acquired the mansion a decade prior, after it was significantly damaged in a blaze. The Crown Estate Commission allowed her to tear it down and rebuild it in the iconic brickwork Georgian style that remains today.
The name was chosen after her grandfather, Woolworth, the creator of the retail shopping chain.
With the Second World War approaching and her personal life not going difficulties, Hutton went back to the US with her son in 1939. It would later be revealed that this is when she encountered her next husband—film star Grant—who is said to have stayed at the mansion with her.
Historical and Modern Function
In the war, the estate was taken over by the military defense division with personnel allegedly playing sports in the gardens.
Hutton returned to the city to assess what was left of the house at the conclusion of the hostilities—and after the enemy attacks. She contacted her legal representative and requested that it be handed over to the US government for restoration—and it has been used as the official home of ambassadors ever since.
History is embedded in the walls of Winfield. The first structure was called a historical title, and according to archival records, was used for visually impaired soldiers of the First World War. A charity of the same name still exists currently.
Speaking about American leaders, a source says: "Eventually they each come, at least once." He explains encountering Trump and his wife the first lady during their previous state visit in 2019, which was "somewhat unusual". They dined at the residence with the queen and the monarch before he rose to the royal position.
A famous image of the Soviet leader—the last Soviet head of state—and US President George W Bush may be one of the most famous moments from the house. The two held a combined news conference there at the international meeting in 1991.
Leaders have historically used it for key moments, including international summits, grand state dinners, and bringing together wartime leaders.
Events and Protection
The residence has hosted many varied events, according to sources.
There have been performances by Duran Duran, the Foo Fighters, and Bastille, occasionally in the outdoor area and at other times within the mansion.
It's also been the setting to athletic activities with the Duke of Sussex attending an sports-related gathering there. Michelle Obama participated actively with a competition, even doing the team event alongside some well-known spectators.
Fashion elite has also graced the halls of Winfield. A previous Vogue editor co-hosted a design event opening party with the ambassador at the period. A music celebrity was spotted too.
A number of the events would attract "thousands" of guests, with the Independence Day parties typically welcoming 3,000 or 4,000.
A Hidden Oasis
It's a something of an getaway.
"You would never know you're in the middle of London," remarks one guest.
But what's the least impressive part of the house? One source notes its entrance road is "rather modest" in contrast with the remainder of Winfield.
"It's big enough for large limousines but you couldn't get a brigade of soldiers marching and things. It's not like the famous avenue."
