The Cave and the Future

Studio Isern Serra designs Fu.Ba in Madrid as a cave-meets-future interior, pairing lime-washed walls and raw stone with stainless steel for a health-focused bakery.

A bakery in Madrid's Chamberí district looks, from the inside, like a civilisation that skipped several centuries and arrived somewhere unexpected. The walls are rounded and lime-plastered, softened at every edge, and the effect is unmistakably cave-like — ancient, sheltering, pre-industrial. Against them, stainless steel shelves catch the light with cool precision. At the centre of the room, a curved steel table rests partly on a large, rough-hewn rock that appears, with some conviction, to have arrived from outer space. The dialogue between these two propositions — the ancestral and the futuristic — is exactly what Studio Isern Serra intended.

Fu.Ba, shorthand for Future Bakery, opened on Calle Santa Engracia in 2025, and it caused the kind of stir that very few neighbourhood bakeries manage. The Barcelona-based studio, also responsible for the Jaç Hi-Fi Café, designed the interior as a sculptural proposition first and a retail environment second — though in practice it functions seamlessly as both. Lime-washed wall forms curve into softened edges that absorb and warm the light. Polished stainless steel counters and worktops reflect it back with clinical crispness. The contrast between these two surface logics — one tactile and earthen, one hygienic and machined — gives the space a tension that rewards repeated visits.

A cave, a meteor, a bakery, and one genuinely coherent idea about how the past and future might share a table.

The plan is organised around clarity and flow. Baking, display, and service operate as a continuous sequence, with lighting placed to accentuate the sculptural wall surfaces and the warm tones of the coatings rather than simply illuminate the product. The result communicates craft and contemporary rigour in equal measure — which is, not coincidentally, also how chef Fabián León approaches the food.

León's offer is built on the same paradox as the interior: classical bakery forms reworked entirely from the inside. Everything on the counter is gluten-free, refined-sugar-free, and free from artificial additives. Nothing, by the accounts of those who have visited, tastes like a concession.

A cave, a meteor, a bakery, and a genuinely coherent idea about how the past and future might share a table. Chamberí, it turns out, was ready.

Key takeaways

• Studio Isern Serra designed Fu.Ba as a dialogue between the ancestral and the futuristic, pairing softly rounded lime-washed cave-like walls with polished stainless steel counters and a monolithic curved steel table resting on a rough-hewn quarry rock.
• The interior's spatial logic prioritises flow and sculptural atmosphere over conventional retail display, with baking, presentation, and service organised as a continuous sequence and lighting calibrated to accentuate surface texture rather than product.
• Chef Fabián León's offer mirrors the interior's central paradox: classical bakery forms reimagined without gluten, refined sugars, or artificial additives — a health-conscious proposition that refuses to read as compromise.