Unicorn Theatre 147 Tooley St London Se1 2hz

So the other day, I’m standing outside 147 Tooley Street—that's Se1 2hz to the GPS gods—and a tiny human, maybe five years old, tugs my sleeve. “Are you a lost grown-up?” she asks, dead serious. I glanced at the building: a bright, almost cheeky glass-and-brick box that looks like it snuck into London’s corporate jungle to throw a party. Inside, a papier-mâché dragon was eating a cardboard pirate ship. That’s the moment I knew: this isn’t just a theatre. It’s a parallel universe where kids run the show—and adults are just lucky to follow.

What even is the Unicorn Theatre?

First, let’s get the basics out of the way (because you’re probably Googling this on a lunch break, right?). The Unicorn is the UK’s leading theatre for young audiences—ages 0 to 25, if you count their teen programs. It’s been around since 1947, but this Tooley Street site opened in 2005. Two theatres under one roof, plus a massive foyer that feels more like a playground than a lobby. They don’t just do The Gruffalo (though they do, brilliantly). They stage dark, weird, brave stuff—like a play about a robot who feels loneliness. Yes, that’s a real show. I choked up. (You would too, honestly.)

Why Tooley Street? (And why you should care about this postcode)

Right opposite London Bridge station, squeezed between a Pret and a shiny office block. It’s literally a stone’s throw from the Thames. The location is deliberately awkward—because kids don’t care about postcodes. They care about the neon sign that says “UNICORN” in big, purple letters. Se1 2hz is a secret portal: you walk in as a sleepy adult, and suddenly you’re surrounded by kids arguing about whether puppets can cry. (Spoiler: they can, if the puppet’s a sock with googly eyes. Try it.) The irony? Most tourists walk right past it to get to the Shard. Their loss, really.

Inside, the sound design is a weapon. Not in a scary way—in a “why-didn’t-someone-think-of-this-sooner” way. In one show, the floor vibrated with every giant’s footstep. I saw a toddler bite her blanket in terror, then instantly laugh. That’s the Unicorn magic: they trust kids to handle real emotions. Compare that to most “children’s entertainment,” which feels like a sugar-high clown on a loop. Here, a four-year-old can watch a play about death and toast (yes, toast) and walk out asking, “Do butterflies have funerals?” I overheard that. I still think about it.

Unicorn Theatre - 147 Tooley Street|London|SE1 2HZ

The real secret: it’s for you, the grown-up

Let’s be honest—you’re probably reading this because you’ve got a kid, or a niece, or you’re just curious. But here’s the thing: Unicorn shows are for adults too. I went to a performance of The Boy Who Climbed into the Moon and cried during a scene about a chair that missed its owner. A man next to me—in a suit, no less—was wiping his eyes with his tie. We’re all still children, just with better excuses for tears. The best shows here last about 50 minutes. Perfect for short attention spans (yours, I mean—kids’ will surprise you). Plus, the café sells flat whites and “unicorn sprinkles” cookies. That’s not irony; that’s survival.

How to not mess up your visit

Book ahead. Seriously. Shows sell out weeks in advance, especially the ones for ages 3-5. And arrive 20 minutes early—the foyer has a “chill-out zone” with cushions and books. Let the kids run feral while you sip overpriced tea. Also: don’t sit in the front row unless you’re okay with a puppet spider crawling into your lap. I learned this the hard way. (The spider was called Gerald. He was lovely.) Oh, and the loos are down a corridor that bends like a labyrinth. Just follow the sound of flushing giggles.

Days out with toddlers in London - Best Places to Visit

If you’re over 25 and feel weird going alone? Don’t. I saw a retired couple there last week, no kids, just holding hands. They told me they come for the “quiet afternoons shows”—which are relaxed performances designed for people with autism or anxiety. The lights stay dim, you can leave and come back. That’s not just accessibility; that’s humanity as a craft. The Unicorn is basically a big, weird hug disguised as a theatre.

And that brings me back to the little girl at the door. “Are you lost?” she asked. I told her, “Maybe. But I think I’m supposed to be here.” She grinned, handed me a sticker of a sad rainbow, and ran off. That sticker is still on my laptop. It reminds me that 147 Tooley Street, London Se1 2hz, isn’t a postcode—it’s a permission slip. Permission to feel silly, to cry over furniture, and to admit you’re still five years old when a good story comes along. So go. Get lost. And bring snacks. You’ll be fine.