Flat Iron Square

Flat Iron Square brings railway-arch grit and street food energy together on Bankside, creating a London Bridge venue that feels more like a curated festival site than a traditional event space. The combination of indoor arches, a heated outdoor garden, and five independent food traders makes it one of South London's most recognisable gathering spots — and one of the more versatile exclusive hire options near London Bridge.

Railway Arches and Bankside Character

The venue occupies a stretch of arches beneath the Bankside railway viaduct, intersected by the Lowline — the route connecting Elephant & Castle to Tower Bridge. The industrial architecture is the backdrop rather than the selling point: exposed brickwork, steel, and open sky frame an outdoor courtyard that feels genuinely urban without being rough around the edges. It's the kind of space that photographs well without needing decoration.

Flat Iron Square's Food and Drink Offering

Five resident food traders provide the catering model — a deliberate move away from single-caterer menus. Guests choose from wood-fired pizza, Greek street food, fried chicken, and more, all operating from permanent setups within the site. Two bars handle the drinks side with craft beer, cider, cocktails, and wine. For event planners, this means catering is solved by the venue's existing infrastructure — no external caterers, no menu negotiations, and built-in variety for groups with mixed dietary needs.

Live Music and Entertainment at Flat Iron Square

The Taproom arch houses a proper stage, sound system, and brewery balcony, making it the venue's entertainment core. Weekly DJ sets and live music run through the regular programme, but for private hire, it becomes a dedicated performance space. Arch 33 provides additional indoor capacity with its own bar. Between the two arches and the garden, there's room for events to spread across distinct zones — each with its own atmosphere.

Getting to Flat Iron Square

London Bridge station is under five minutes' walk, with Borough station equally close. The Southwark Quarter location puts guests within easy reach of Borough Market, the Tate Modern, and the South Bank — useful context for events where guests might explore before or after. The SE1 postcode carries its own recognition among London event-goers, and the transport links mean attendance is straightforward from both sides of the river.