The Diplomat filming locations you can visit

Confession time: I have a problem. I can’t just watch a show like The Diplomat (or Slow Horses for that matter) and enjoy the plot like a normal person. My brain is basically a glitching GPS. Because I’ve lived in London and spent way too much time dragging a suitcase across the continent, I don’t simply see “the Ambassador’s residence”—I see the exact gravel driveway from a Downton Abbey garden party. I’m the person pausing the TV to shriek, “Wait, that’s not Kent, that’s Hertfordshire!” at my very confused cat.

But honestly, that’s the secret sauce of The Diplomat. The show is a masterclass in scenic locations, blending high-stakes diplomacy with power players and international intrigue. One minute the ambassador is running a clandestine meeting at the real Foreign Office in London, the next she’s out in the windswept Scottish Highlands navigating yet another crisis. The show uses these iconic backdrops as power moves in their own right, and the Geoguessr aficionado in me couldn’t be more delighted.

While we wait for the next season, let’s retrace the steps (and web of lies) of Kate and Hal.

The ambassador’s residence at Winfield House

The most important location in the show is Kate and Hal’s temporary home, Winfield House, the official residence of the US Ambassador in London. It’s supposed to be nestled in the chic quietude of Regent’s Park… but the show’s producers went with a much more experienced stand-in.

The iconic shots of the Ambassador’s colossal mansion and grounds were actually filmed at Wrotham Park in Hertfordshire, just north of London. Looks familiar? You’re not wrong. In fact, it’s the hardest-working stately home in television! It’s been featured in everything from The Crown to Downton Abbey and countless Bridgerton scenes. Its Neo-Palladian architecture and lush, rolling parkland instantly signal “old money and high stakes.” The 1936 stately home features the second-largest private garden in London after Buckingham Palace’s.

However, Wrotham Park is a private residence, meaning unfortunately you can’t just swing by for a tour.

But you can certainly stroll through Regent’s Park, see the actual Winfield House from the outside, and pretend you’re getting ready to host a very dramatic, politically charged dinner party.

Real government buildings used in The Diplomat

You can’t film a show about diplomacy without getting into the real diplomatic hubs. While most of the frantic office scenes are filmed on sound stages at London North Studios, The Diplomat scored some seriously impressive access.

• The U.S. Embassy, Nine Elms: When you see the shots of that imposing, modern, cube-like building with the white accents—that’s the real deal. The show actually used establishing shots of the U.S. Embassy in Nine Elms, London, the largest American embassy in Western Europe.
• The Foreign, Commonwealth & Development Office (FCDO): The show featured incredible interiors from the FCDO building in Westminster. Keep an eye out for the glorious Durbar Court and the highly ornate Grand Staircase. It’s usually closed to the public, but keep an eye out for “Open House London” weekends—it’s the one time a year commoners like us can sneak a peek.

Did The Diplomat actually film at St. Paul’s Cathedral?

Yes, they did! And this is a big one. For MP Merritt Grove’s funeral in Season 2, the production team secured the near-unprecedented permission to film inside St. Paul’s Cathedral for four full days. Apparently, they even borrowed vestments that had only been worn for a handful of other monumental, high-profile occasions (like Winston Churchill’s funeral). It’s a testament to the show’s pull, and it provides an absolutely magnificent setting.

Moreover, St. Paul’s is one of London’s most famous tourist attractions, open for tours, and well worth the visit to stand under Christopher Wren’s incredible dome.

The Old Royal Naval College, Greenwich

Remember that sweeping funeral scene in season 2? That was filmed at the stunning Old Royal Naval College in Maritime Greenwich. It’s another UNESCO World Heritage site and a hugely popular filming location.

This site is open to the public, and it’s free to walk around the grounds.

Ditchley Park

Ditchley Park, in Oxfordshire, was primarily used in The Diplomat as the location for the Foreign Secretary’s country house. While the real-life official country residence is Chevening House, Ditchley Park was used as the stand-in, most notably in scenes requiring a grand, historic manor house setting outside of London, such as for meetings or diplomatic retreats.

It’s a particularly fitting location for a high-stakes political drama because Ditchley Park has genuine wartime history: it was famously used as a secret weekend retreat by Winston Churchill during World War II.

Blenheim Palace

For the season two finale the show headed to Blenheim Palace in Oxfordshire. It’s one of Britain’s most famous houses, being the ancestral home and birthplace of Sir Winston Churchill. Its sheer scale—including the Great Court, the Great Hall, and the State Rooms—provides the kind of gravitas for Prime Minister Trowbridge’s formal dinner in Episode 6.

Inveraray Castle & Glen Torridon

If your jaw dropped during the beautiful, remote Scottish scenes, you were probably looking at Inveraray Castle in Argyll. The nearby, rugged landscapes of Glen Torridon also provide those dramatic, windswept backdrops for the more remote plotlines of Episode 4 in Season 2; here, Kate and Hal head attend a summit with the Scottish First Minister, but the real action is a clandestine “sting” operation as they smuggle a witness into the castle to confront Trowbridge and find out if he was actually behind the bombing of the HMS Courageous.

Inveraray Castle and its gardens are open to the public seasonally, and Glen Torridon is part of the spectacular Scottish Highlands, welcoming hikers and nature lovers all year long.

Amagansett is actually Seacroft Estate on Long Island, New York

Featured heavily in Season 3, Episode 6, the Vice President’s magnificent beach house is actually the Seacroft Estate on Centre Island in Oyster Bay. This stunning waterfront mansion boasts ten distinct and adjoining cottages, which was a perfect fit for the storytelling needs of the episode. The quintessential New England seaside vibe provide a beautiful, albeit tense and deceptive backdrop for Kate’s desperate, last-ditch effort to save the presidency while the administration scrambles to handle a massive leaks scandal.

Coe Hall, Long Island

In the Season 3 Finale, the show used Coe Hall at Planting Fields Arboretum to stand in for Chequers—the country retreat of the British Prime Minister. While the real Chequers is a high-security fortress in Buckinghamshire, Coe Hall’s Tudor Revival style feels so authentic with its leaded glass windows, hand-wrought ironwork, and imported English limestone. This 65-room Gilded Age masterpiece convinces you Kate is still in the UK, even though she’s technically in New York state.

The Diplomat filming locations in Paris

In the Season 1 finale, Kate and Austin jet to Paris. The narrative intrigue hits a fever pitch here: Kate is ostensibly there to coordinate the arrest of the Russian mercenary Lenkov with the French Interior Minister.

• The Louvre: While they probably didn’t film many hours inside, the establishing shots, including those near the famous pyramid and the great halls inside, including works such as Winged Victory of Samothrace and The Coronation of Napoleon.
• The Pont Royal: This stunning bridge connects the Left Bank to the Right Bank over the River Seine, placing Kate and her colleagues perfectly between the Musée d’Orsay and the Louvre.
• Le Saint-Régis: Le Saint-Régis is a real-life, classic Parisian café/brasserie located on the charming Île Saint-Louis. In The Diplomat, this location features in the Season 1 Finale, right before the big cliffhanger on the Pont Royal.