You might be wondering, “Why not film in Manchester or Glasgow?” Well, money, darling. Northern Ireland offers serious tax breaks for film and TV. But also—and this is key—Belfast has a unique architectural mix. It has Victorian buildings, postwar concrete slabs, and brand-new glass towers all within a few blocks. That gives the show a timeless, “every-city” look.
Plus, the local extras are brilliant. Ever notice how the background characters look genuinely disgruntled? That’s because many of them are actual former police officers or civil servants from Belfast who volunteered for a day. They’re not acting; they’re just remembering. Creepy, but perfect for the show.
Where is Line of Duty filmed? 10 ICONIC filming locations, REVEALED
The One Location That Breaks Your Heart
Spoiler-free, I promise. But there’s a scene in Season 5 where a character walks through a bleak, rainy park before a major betrayal. That’s Sir Thomas and Lady Dixon Park in Belfast. The trees there look like they’re conspiring with the script.
Another famous spot: the Crumlin Road Gaol. This former prison is used for exterior shots of maximum-security settings. It’s a real museum now, but when you see it on screen, it feels like the walls are still holding prisoners. That’s the magic of location—it brings a genuine dread that a studio can’t fake.
