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London is the quiet co-star of the Harry Potter films, lending its markets, bridges and grand Victorian interiors to the wizarding world without ever announcing itself. This guide is for visitors who want to stand where Harry stood, photograph the real facades behind Diagon Alley and the Leaky Cauldron, and understand which scenes were filmed on location and which were built on a sound stage. It is a walkable, central itinerary built for discerning travellers rather than a frantic dash.
Which Harry Potter scenes were really filmed in London?
A handful of genuine London locations appear in the films, including Leadenhall Market and a nearby alley used for the entrance to the Leaky Cauldron and Diagon Alley, the Millennium Bridge destroyed by Death Eaters, and Borough Market where the Leaky Cauldron exterior was shot. Most interiors, however, were built at studios outside the city.
It helps to separate the real from the constructed. The atmospheric streets and station concourses are authentic and free to visit, while the great halls, classrooms and shopfronts of Hogwarts and Diagon Alley were sets, many of which survive at the studio tour in Hertfordshire. Knowing the difference saves disappointment and shapes a smarter day out.
Leadenhall Market and the Leaky Cauldron
Leadenhall Market in the City of London stood in for the wizarding district leading to Diagon Alley in the first film, and a small blue shopfront on nearby Bull's Head Passage served as the entrance to the Leaky Cauldron. The covered Victorian market, with its ornate painted ironwork and cobbled lanes, is one of the most evocative stops on any tour.
Leadenhall is busiest with City workers at lunchtime on weekdays and notably quiet at weekends, which makes early mornings or a Saturday the best time for unobstructed photographs. The optician's premises that played the Leaky Cauldron entrance is easy to find once you know to look for it.
- Nearest stations: Bank and Monument, served by several Underground lines.
- Look for the dark shopfront on Bull's Head Passage for the Leaky Cauldron doorway.
- Pair the visit with the surrounding City landmarks for a half day.
The Millennium Bridge and the South Bank
The Millennium Bridge, the slender steel footbridge linking St Paul's Cathedral with Tate Modern, is famously twisted and collapsed by Death Eaters in the opening of Half-Blood Prince. Crossing it on foot delivers some of the finest free views in London, with the cathedral dome behind you and the river museums ahead.
The bridge sits at the heart of a walkable cultural stretch. From its southern end you are moments from Tate Modern and Shakespeare's Globe, and a short riverside stroll east brings you to Borough Market. This makes the South Bank one of the most efficient clusters for combining film sites with serious sightseeing.
Borough Market and Bankside
Borough Market, London's celebrated historic food market beneath the railway arches at London Bridge, provided the exterior for the Leaky Cauldron in Prisoner of Azkaban, filmed around the entrance on Stoney Street. The market itself is a destination in its own right, renowned for its produce, cheese and street food.
Trading days are the right time to feel the atmosphere, though the surrounding lanes are photogenic whenever you visit. The area around Bankside and Southwark Cathedral rewards wandering, and it slots neatly into a riverside route that takes in the Millennium Bridge. See more options on our guide to London markets.
King's Cross and Platform Nine and Three-Quarters
King's Cross station is where the Hogwarts Express departs, and the concourse displays a dedicated photo spot with a luggage trolley vanishing into the wall. The grand glass-roofed Western Concourse is genuine, though the platform scenes themselves were filmed between platforms four and five rather than at the fictional nine and three-quarters.
The neighbouring St Pancras International, with its soaring Gothic frontage, often stands in for King's Cross in exterior shots and is worth admiring next door. For the trolley photograph, queues form through the day, so arrive early. Our full guide to Platform Nine and Three-Quarters at King's Cross covers timings and tips.
Grand interiors and lesser-known cameos
Several stately London interiors appear in the films, including Australia House on the Strand, whose marble hall and chandeliers became Gringotts Wizarding Bank, and Goathland aside, the reptile house at London Zoo in Regent's Park, where Harry first speaks to a snake in the opening film.
Note that Australia House is a working diplomatic mission and is not generally open to casual visitors, so admire it from outside. London Zoo, by contrast, welcomes the public and the reptile house remains a fun stop for families. Other cameos include Lambeth Bridge and the dramatic facade of the city's government quarter.
- Australia House, Strand: interior used as Gringotts, viewable only from the street.
- London Zoo reptile house, Regent's Park: the talking-snake scene, open to visitors.
- Claremont Square, Islington: the exterior of number twelve, Grimmauld Place.
- Piccadilly Circus: the trio dodge traffic here in Deathly Hallows.
How to see the locations in one day
A logical self-guided route runs from King's Cross in the morning down to the City for Leadenhall Market, then across to the South Bank for the Millennium Bridge and Borough Market. The central sites are close together and well connected by the Underground, so a focused day on foot and by tube is entirely realistic.
If you prefer expert commentary, a guided walk threads the stops together with film trivia and exact camera positions. Compare options in our guide to Harry Potter walking tours in London. To see the surviving sets, props and costumes, dedicate a separate half day to the studio tour, covered in getting to Warner Bros Studio Tour London.
Harry Potter Filming Locations in London FAQ
Is Diagon Alley a real place in London?
Diagon Alley is not a single real street, but its first-film approach was shot at Leadenhall Market in the City of London, with the Leaky Cauldron entrance on Bull's Head Passage. The fully dressed Diagon Alley set, with its shopfronts, was built at the studios and survives at the Warner Bros Studio Tour.
Can you visit the Harry Potter London locations for free?
Yes. Most of the genuine London filming locations are public streets, bridges, stations and markets that cost nothing to visit, including Leadenhall Market, the Millennium Bridge, Borough Market and King's Cross station. Only paid attractions such as London Zoo and the separate studio tour in Hertfordshire require a ticket.
Where was the Leaky Cauldron filmed?
Two London spots played the Leaky Cauldron across different films. The first film used a small shopfront on Bull's Head Passage beside Leadenhall Market, while Prisoner of Azkaban filmed its exterior around the Stoney Street entrance to Borough Market in Southwark. Both are easy to find and free to photograph.
Is the studio tour in London itself?
No. The Warner Bros Studio Tour London is at Leavesden in Hertfordshire, north west of the city, not in central London. It is reachable by train and shuttle bus or by direct coach. Treat it as a separate day from the central filming-location walk, as it easily fills several hours.
What is the best order to visit the locations?
Begin at King's Cross for the Hogwarts Express trolley, travel to the City for Leadenhall Market, then cross the river to take in the Millennium Bridge and finish at Borough Market. This north to south route keeps walking short and uses well-linked Underground lines, comfortably completed in a single day.
Where to go next
- Browse the full London Guide UK guides hub for more themed itineraries.
- Plan the studio day with getting to Warner Bros Studio Tour London.
- Get the trolley photograph with our Platform Nine and Three-Quarters at King's Cross guide.
- Go with a guide using Harry Potter walking tours in London.
