Harry Potter fans who have always wanted to step into Diagon Alley might not need a Warner Bros studio ticket after all. According to Secret London, a property near the capital with a hidden room designed in the spirit of the famous wizarding shopping street is currently on the market — and it's the kind of listing that makes the property pages read like a fantasy novel.

The appeal is obvious. Diagon Alley, the cobbled, crooked-facaded lane where wizards stock up on wands, cauldrons and spellbooks, is one of the most beloved fictional places in Britain. Recreating its look inside a home — concealed entrance, atmospheric theming and all — is a rare thing, and it turns an ordinary house into something collectors and superfans will fight over.

For travellers, the story lands at an interesting moment. London has quietly become one of the world's best cities for Harry Potter pilgrims. The Warner Bros. Studio Tour London at Leavesden, about 20 miles from central London, houses the actual film sets, including a full-scale Diagon Alley street you can walk down. Add in the Harry Potter Shop at Platform 9¾ in King's Cross station, wizarding walking tours through the City and Leicester Square's House of Spells, and you can build an entire long weekend around the franchise without much imagination required.

Whether this particular home goes to a superfan, a collector or someone with an eye on themed-letting potential, it's a reminder of how much value a bit of immersive design can add. Places that let visitors live inside a story — themed hotels, film-set stays, bookable tv locations — are among the fastest-growing niches in UK travel, and London sits right at the centre of it.

If the property itself is out of reach, the good news is that the experience it copies is very much available to book. A day at the Studio Tour (timed tickets, book well ahead), a night or two in central London, and a themed afternoon tea or two will get most muggles closer to Diagon Alley than they ever expected to be — no hidden bookcase required.