What the 'You' season 4 filming locations in the UK look like in the show versus real life

Season four of Netflix's "You" sees Joe Goldberg (Penn Badgley) begin a new life in London, far away from the juice detoxes and yoga pants he found himself surrounded by in the fictional town of Madre Linda, California, where he lived with his wife Love Quinn (Victoria Pedretti) and his young son, Henry.

As Joe reveals in his inner monologue in episode one, his apartment is located in South Kensington, which is in the Royal Borough of Kensington and Chelsea.

The area is one of the most affluent in London and home to the Prince and Princess of Wales, who reside with their three children in the royal residence, Kensington Palace, which is just a 10-minute walk away from Joe's home.

Joe lives on a mews, which is a type of street found in the UK and other European countries made up of a row of houses that have been converted from stables or built to look like former stables.

These streets do not typically have sidewalks and they are often too small or narrow for cars to drive down, meaning that, in general, they tend to be a lot more charming and well-kept than your average street. As Joe says himself, it's very "Hugh Grant movie" (for the record, Notting Hill is also just a stone's throw away).

I was surprised to find that the entrance to Kynance Mews wasn't tucked away down a secret side street, but accessible from a main road that London buses, ambulances, and delivery trucks frequent.

I realized that the directors on "You" had been a bit sneaky by only showing the entrance to Kynance Mews from one angle. As a result, viewers didn't see that to the right of the 19th-century archway entrance is another road, which when I visited, was blocked by an open-topped waste container. I thought it looked a lot better on screen than it did in real life.

Interestingly, though, "You" isn't the first time audiences might have seen Kynance Mews on screen, as more than half a dozen films have used the street, including the Julie Andrews musical "Star!" (1968), neo-noir classic "The Big Sleep" (1978), and the Jeremy Irons-starring psychological drama "Damage" (1992).

Given the fact that the interior of the flat was built on a soundstage, I wasn't expecting Cornwall Gardens — the street on which Kate (Charlotte Ritchie) lives — to be just around the corner from Joe's, but it actually was.

Most of the houses on the rich road have several floors and because they're so spacious, have been converted into apartments. According to Rightmove, properties in the street had an overall average price of £1,505,000 (approximately $1,850,000) over the last year.

The road is very long and took more than five minutes to get from one end to the other, but it was a pleasant stroll because Cornwall Gardens has its own private park that sits in the middle of the rows of houses.

As someone who lives on the outskirts of London for both cheaper rent and better access to green spaces, I thought about what a privilege it would be to be able to open your curtains in the morning and see such a view in what is regarded as London's most central area.

And then I remembered that later in the series, we learn that Kate is the wealthiest out of all the young, rich, and "royal adjacent" characters Joe meets in the new season, and I realized it made total sense for her to live somewhere like this.

In "You" season four, Darcy College is the college Joe — or should I say, Jonathan Moore — teaches at and meets many of the season's most important characters, including Kate, Malcolm (Stephen Hagan), and Nadia (Amy-Leigh Hickman).

The real college used for these exterior and interior scenes was Royal Holloway, a university located 19 miles from central London that took me 40 minutes to reach from Waterloo station.

When I visited on a damp Friday afternoon the red-brick quad was practically empty and there was no sign of the over 11,000 students that make up the student body. As they don't actually live in the rooms that look into the quad, I figured this made sense and that many had returned to their accommodation to escape the inclement weather.

However, I suspect that even on a better day that the university might not give you the sense that you are in the hustle and bustle of the UK capital, given the distance traveled to get there.

"Campus is across town from where I stay, but in a city like London, I don't mind the walk," Joe says in his voiceover at the beginning of episode one accompanied by shots of him walking home after a day of teaching, inexplicably passing through the trendy east London neighborhood of Shoreditch.

Popping Joe's journey into Google Maps to calculate just how long this post-work stroll would take him, I discovered that Joe is casually walking a whole marathon after classes each day and not getting into bed until way past midnight as it takes more than nine hours.

I've not heard this kind of illogical neighborhood-hopping since Taylor Swift's "London Boy," in which the pop star sang about spending afternoons in Shoreditch, then traveling down to Brixton before returning north of the Thames to Highgate.

As the Eat-the-Rich Killer continues their murderous spree, Lady Phoebe Borehall-Blaxworth (Tilly Keeper) invites Joe and the rest of the gang to escape London and spend the weekend at her family's countryside home in episode four, Hampsbridge House ( or 'Hampsie' as she calls it).

While the estate doesn't actually exist, "You" fans will be pleased to know that filming took place at the very real Knebworth House in Stevenage, Hertfordshire, which you can reach from Kings Cross in just 20 minutes.

The house, like on the show, does belong to an aristocratic family who have owned the house since 1490, but it is open to the public between March and October.

It belongs to the Lytton family, who count among them a famous Victorian novelist and politician, Sir Edward Bulwer Lytton (he coined the phrase "the pen is mightier than the sword"), and a notable Suffragette, Lady Constance Lytton.

Many of the scenes from Joe's nightmarish weekend spent with Phoebe, Kate, Adam (Lukas Gage), and Roald (Ben Wiggins) were actually filmed inside the sprawling Tudor-style house.

The home's very own banquet hall, dining parlor, armory, library, picture gallery, and bedrooms were used for the two episodes set at Hampsie.

In fact, "You" is just the latest in a long line of shows, movies, and music videos filmed at the famous house and viewers might recognize the interiors from the likes of "The King's Speech" (2010), "Eurovision Song Contest: Fire Saga" (2020), and "Nanny McPhee" (2005).

Music videos filmed at the house include Simple Mind's 1985 classic "Don't You (Forget About Me)" and Little Mix and Nicki Minaj's 2018 collaboration "Woman Like Me."

The estate's musical connection goes even deeper as its grounds were once home to the famous Knebworth Festival, which has seen the likes of The Rolling Stones, Led Zeppelin, Elton John, and Queen play.

Following his performance in 1976, The Rolling Stones frontman Mick Jagger even once slept in the bedroom that Joe is assigned for his weekend at Hampsie — and left behind his underwear. The rather unexpected "gift" was accepted by the owners, who have kept them in a safe for the last 43 years.

It turns out that the room used to depict Phoebe's sex dungeon-style bedroom actually isn't a bedroom at all, but a drawing room on the house's second floor.

However, "You" isn't the first production to transform the room into a bedroom, as the period drama "Victoria & Abdul" (2017) also did the same several years ago, although understandably it was decorated differently.

In the show, we see that Phoebe's bedroom is decorated with a red neon heart, a retro-style round bed, and many, many phallic candles, which she says are made from molds from her past lovers' privates.

I was told by Knebworth's operations manager Trish Washer that the crew actually left many of these X-rated props behind after filming had finished. I didn't ask, but wondered if they have also made it in the safe next to Jagger's Y-fronts as another souvenir.

However, while most of the Hampsie scenes were filmed at Knebworth House, the woods where Joe is hunted by Roald aren't actually a part of the estate and were filmed over 30 miles away in Black Park, a 500-acre woodland in South Buckinghamshire.

There's only one place you can catch the Eurostar from London to Paris, and that's St Pancras International station, which is found just opposite King's Cross station. It's arguably one of the capital's most opulent stations, featuring many luxury stores and restaurants, and well worth spending some time there if you're passing through.