24/01/2023
The magical world of Harry Potter is set to be reimagined for a new generation with HBO's upcoming television series. Fans eagerly awaiting the show's debut will be interested to know that production is set to commence at a familiar and iconic location: Warner Bros. Studios Leavesden in Hertfordshire. This sprawling studio complex has deep roots in the wizarding world, having served as the primary filming location for all eight of the original blockbuster Harry Potter films.

A Return to the Heart of the Magic
Leavesden Studios, located on the outskirts of Watford, has a storied history with the Harry Potter franchise. It was here that the iconic Great Hall was constructed, where the dursley's cupboard under the stairs was meticulously recreated, and where countless other memorable scenes unfolded. The decision to return to Leavesden for the new HBO series underscores the studio's significance and its ability to provide the vast resources and immersive environments necessary to bring J.K. Rowling's beloved books to life once more. The series aims to be a faithful adaptation, delving into each year of Harry's education at Hogwarts, promising a deep dive into the original narrative with a fresh cast.
The New Generation of Wizards and Witches
While the filming location remains a nod to the past, the HBO series will feature an entirely new ensemble of actors to portray the beloved characters. HBO has been steadily announcing the cast, generating significant buzz among fans. Among the confirmed cast members are Dominic McLaughlin as Harry Potter, Arabella Stanton as Hermione Granger, and Alastair Stout as Ron Weasley. Esteemed actors are also set to join the ranks, including John Lithgow as Albus Dumbledore, Paapa Essiedu as Severus Snape, and Janet McTeer as Minerva McGonagall. The casting of Nick Frost as Rubeus Hagrid and Paul Whitehouse as Argus Filch has also been met with considerable excitement. Other notable cast members include Luke Thallon as Quirinus Quirrell, Lox Pratt as Draco Malfoy, Johnny Flynn as Lucius Malfoy, Bel Powley as Petunia Dursley, Daniel Rigby as Vernon Dursley, Katherine Parkinson as Molly Weasley, and Bertie Carvel as Cornelius Fudge. This new cast is tasked with the significant responsibility of embodying characters that have been cherished by millions for over two decades.
Behind the Scenes at Leavesden Studios
Warner Bros. Studios Leavesden is more than just a filming location; it's a purpose-built hub for large-scale productions. The studios have been significantly expanded and modernised since the original Harry Potter films, equipped with state-of-the-art sound stages, post-production facilities, and backlot areas. This allows for a seamless production process, from principal photography to visual effects. The announcement of a major television series shooting at the studios by Extra People, a casting agency known for its work on productions like James Bond, Ted Lasso, and Slow Horses, further solidifies Leavesden's status as a premier filming destination. While not explicitly named in the initial application, social media speculation, coupled with the announcement of the new Harry Potter adaptation beginning filming there, strongly suggests this is the project in question.
Casting the Future of Harry Potter
The casting process for the new series has been extensive, with HBO aiming for authenticity and a faithful representation of the books. A recent casting call specifically sought children aged nine to 17 who reside within a 45-minute radius of Warner Bros. Studios, Leavesden. The call emphasised inclusivity, welcoming applicants of all ethnicities and genders. Filming is slated to begin in July 2025, with numerous filming days available and competitive rates of pay advertised. The advert welcomed both experienced actors and newcomers, stressing the importance of a strong work ethic and professional attitude, even for those with no prior acting experience. Applications for younger performers, under 16, require parental or guardian consent. Reports indicate that following an initial casting call in September, a staggering 32,000 children auditioned for the lead roles, with the production team reviewing up to 1,000 audition tapes daily. This meticulous approach highlights the commitment to finding the perfect cast to carry the magic forward.
The Legacy of the Films and the Promise of the Series
Warner Bros. has been the driving force behind the original, incredibly successful film franchise, which starred Daniel Radcliffe, Emma Watson, and Rupert Grint. The upcoming decade-long series, based on J.K. Rowling's seven books, was announced in 2023 with a clear mandate from HBO: to be a "faithful adaptation of the iconic books." The company has stated that the series will feature a new cast to introduce the story to a new generation of fans, while also promising to retain the "fantastic detail, much-loved characters and dramatic locations" that Harry Potter enthusiasts have adored for over 25 years. Crucially, HBO has assured fans that the original films will remain accessible, serving as the foundational core of the franchise. The new series is anticipated to debut on Max, as well as HBO and Warner Bros. Discovery streaming services, in 2026, marking a significant moment for fans worldwide.
Key Locations Associated with Harry Potter Filming
While Leavesden Studios is the primary production hub, the original films utilized a variety of iconic British landmarks that have become synonymous with the Harry Potter universe. These include:
| Location | Significance |
|---|---|
| Alnwick Castle, Northumberland | Hogwarts' exterior, including the Quidditch pitch and broomstick flying lessons. |
| Christ Church, Oxford | The Great Hall inspiration and the staircase leading to it. |
| Gloucester Cathedral | Hogwarts' corridors, including the Gryffindor common room entrance. |
| Lacock Abbey, Wiltshire | Various Hogwarts interiors, including classrooms and corridors. |
| King's Cross Station, London | Platform 9 ¾, where students boarded the Hogwarts Express. |
| Glenfinnan Viaduct, Scotland | The route of the Hogwarts Express. |
| The Elephant House, Edinburgh | One of the cafes where J.K. Rowling wrote parts of the books. |
Frequently Asked Questions
Q: Where is the new HBO Harry Potter series being filmed?
A: The new series is being filmed at Warner Bros. Studios Leavesden in Hertfordshire.

Q: What is Warner Bros. Studios Leavesden's connection to Harry Potter?
A: It was the primary filming location for all eight of the original Harry Potter films.
Q: Who is playing Harry Potter in the new series?
A: Dominic McLaughlin has been cast as Harry Potter.
Q: When will the new Harry Potter series be released?
A: The series is expected to debut in 2026.
Q: Will the original Harry Potter films still be available to watch?
A: Yes, HBO has confirmed that the original films will remain at the core of the franchise and available globally.
The anticipation for the HBO Harry Potter series is palpable, and knowing that production is underway at the legendary Leavesden Studios adds another layer of excitement for fans. As casting continues and production progresses, more details are sure to emerge about this ambitious new chapter in the wizarding world.
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