Fact 1: Filming for Harry Potter and the Philosopher's Stone commenced on September 29, 2000, with the Great Hall being among the first sets constructed. Initially designed to accommodate over 400 children.
Fact 2: Originating in Harry Potter and the Chamber of Secrets, Dumbledore's office set, renowned for its grandeur, includes a vast library with books cleverly crafted from leather-bound telephone directories.
Fact 3: At the Studios, a colossal water tank, the largest in Europe, was constructed for filming the underwater scenes of the Triwizard Tournament. This impressive tank boasts a capacity of over two million liters of water.
Warner Bros Studio Tour London brings the magic of filmmaking to life with real sets, props and behind-the-scenes secrets. From the Great Hall to Diagon Alley, it’s where Harry Potter fans can see how the Wizarding World was created, right where the films were actually made.
Quick facts about the Warner Bros Studio Tour London
Official name: Warner Bros. Studio Tour London – The Making of Harry Potter
Address: Studio Tour Dr, Leavesden, Watford WD25 7LR, United Kingdom
Date of opening: March 31, 2012
Timings: 9:30am to 10pm (weekdays) and 8:30am to 10pm (weekends)
Designed by: Thinkwell Group
Number of visitors per year: 2.9 million guests annually
Discover Warner Bros. Studio Tour London - The Making of Harry Potter
Plan your visit to Warner Bros Studio Tour London
Opening hours:
Monday to Friday: 9:30am to 8:00pm
Saturday and Sunday: 8:30am to 10:00pm
From mid-July to early September, the Studio opens daily from 8:30am to 10:00pm.
Tour duration: Most visits to the Warner Bros Harry Potter Studio Tour last between 3 to 7 hours, depending on your pace.
Address: Warner Bros. Studio Tour London, Studio Tour Drive, Leavesden WD25 7LR, United Kingdom
The Warner Bros Studio Tour is located in Leavesden, just outside London, surrounded by quiet countryside and easily accessible by train or shuttle from Watford.
Closest landmark: Cheslyn House & Gardens (2.2 km)
Things to see at Warner Bros Studio Tour
Sets
From the stone-floored Great Hall to the twisting alleys of Diagon Alley, the Studio’s sets show where key Harry Potter scenes were filmed. See the actual Hogwarts Express, walk through the Forbidden Forest, and explore iconic spaces like Dumbledore’s office, Gringotts Bank, and Professor Sprout’s working greenhouse.
Props at the Studio Tour are full of quirky detail. Potions classrooms are lined with labelled jars filled with bones and herbs. Memory vials show familiar names in Dumbledore’s office. The joke shop is packed with strange items, including a 20-foot mannequin and a vomiting candy dispenser that actually moves.
The costume department designed hundreds of pieces across the films, including romantic Yule Ball gowns, protective Quidditch gear, and Beauxbatons uniforms in signature blue. You can also spot personal heirlooms in the final scene, where each item tells you something about the character’s journey across the series.
At the Studio, you’ll learn how visual tricks were created with hands-on props. The Chamber door snakes move via hidden motors. Invisibility cloaks used green lining for digital vanishing. Green screen zones let you fly a broom and see how backgrounds were added later.
The Studio showcases the incredible craftsmanship behind magical creatures. Animatronics like Buckbeak the Hippogriff and the giant spider Aragog were designed to move realistically, with hand-inserted feathers and hair. Creature teams also created lifelike goblin masks and a massive serpent head for fight scenes.
The Art Department designed everything from castle models and magical books to set blueprints. Their crown jewel is a hand-built Hogwarts castle, complete with real gravel, tiny lights and landscaping, used alongside digital effects to create breathtaking views of the school on screen.
In 2010, with eight films complete and a mountain of props and sets in storage, the Harry Potter production crew decided not to let it all fade into memory. They spent years reconstructing key sets and preserving original costumes to open the Studio Tour in 2012.
The studio was expanded in 2015 with the original Hogwarts Express being rolled into the recreated version of Platform 9 3⁄4, and it hasn’t stopped evolving since. With new seasonal features and detailed behind-the-scenes sections, it’s a rare chance to see how the Harry Potter universe was actually built, scene by scene!
Who built the Warner Bros Studio Tour London?
Behind the Harry Potter Studio Tour is Thinkwell Group, a Burbank-based design agency known for immersive experiences. They worked hand-in-hand with Warner Bros. and the original filmmakers to recreate sets and build the tour’s structure. Every major addition since 2012—including Gringotts and the Forbidden Forest—has been led by Thinkwell, ensuring everything you see is authentic, accurate, and carefully thought through!
Frequently Asked Questions about the Warner Bros Studio Tour London
Most visitors spend around 3.5 to 4 hours, but if you're a detail lover or want to do the café, shop, and all the extras, give yourself at least 5 hours.
The tour has a set walking route that begins with a short introduction and the Great Hall, but after that, you can explore at your own pace.
While most sets are indoors, there’s a Backlot area outside featuring the Knight Bus, Privet Drive, the Hogwarts Bridge, and the café seating area.
The Studio Tour is where the actual films were shot, with real sets and props. The London locations are public areas used for exterior scenes, not part of this tour.
The model is not walk-through, but it’s incredibly detailed and viewable from multiple levels with lighting that changes to mimic day and night.
You can try riding a broomstick or appearing in the flying car using green screen effects. The experience takes a few minutes and you can purchase the footage after.
Some staff have worked on the films or have direct connections to the production, especially during special events or tours with guest speakers.
Not at all. Even non-fans enjoy seeing how blockbuster films are made, especially the design, special effects, and behind-the-scenes craftsmanship.
Most are original, carefully preserved or rebuilt using the same materials and techniques by the actual film crew and designers.
Look closely at the labels in the Potions classroom and Memory cabinet. Each has tiny hand-designed details, often referencing familiar character names.
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From London: Harry Potter™ Warner Bros. Studio Tour with Return Transport