HBO Begins £1B Harry Potter Series Filming in London, Leavesden

HBO is developing a highly ambitious Harry Potter television series set to premiere in 2027, with plans to adapt each of J.K. Rowling's seven books into individual seasons over the next decade. Francesca Gardiner, an Emmy-winning showrunner and Harry Potter superfan, leads the project with support from Rowling and other executive producers, aiming to bring new depth and detail to the beloved franchise. Production is underway with significant investment, including the construction of extensive sets such as a full mini-town and Hogwarts school facilities at Warner Bros.' Leavesden studio, which also helps prevent spoilers. Fans will get an early look at the new Harry and Hagrid actors, Dominic McLaughlin and Nick Frost, in the 2025 family film Grow, offering a preview of their on-screen chemistry prior to the series launch. Filming scenes have already been spotted in London, with Frost seen in full Hagrid costume, although fan reactions to the updated portrayal have been mixed. Despite some controversy, including Frost distancing himself from Rowling's views, the series promises a fresh and expansive take on the Wizarding World, with a new cast including Arabella Stanton as Hermione Granger.