Art Nouveau Architecture
Published 5 July 2020 · Updated 13 November 2026
The gist: Art Nouveau treated architecture, interiors and everyday details as one design problem. Around the turn of the twentieth century, architects used new materials and nature-derived forms to challenge historical imitation. Horta’s light-filled Brussels houses and Guimard’s Paris Métro entrances reveal a movement concerned with spatial organisation and production as much as ornament.
A new architecture, down to the door handle
Art Nouveau emerged in the closing decades of the nineteenth century as designers searched for an alternative to repeating historical styles. Its name describes a broad international movement rather than one fixed architectural formula. Curving lines and plant-like motifs are familiar, but geometry, asymmetry and the relationship between structure and decoration were equally important.
The V&A’s account of Art Nouveau’s international development shows how those ambitions took different forms across Europe. This variation matters. The movement cannot be identified simply by finding a flower on a façade, nor does every building associated with it depend on sweeping curves.
Horta: the plan is part of the design
Victor Horta’s Brussels houses bring the discussion inside the building. Hôtel Tassel, Hôtel Solvay, Hôtel van Eetvelde and Horta’s own house and workshop are recognised by UNESCO for their integrated architecture. Metal structures, glass and carefully organised circulation allowed light to reach through the houses in ways that challenged conventional enclosed room arrangements.
At Hôtel Tassel and Hôtel van Eetvelde, a glazed circulation space connects the principal parts of the house. This is more consequential than a decorative flourish: the plan and section work together to change the experience of moving between rooms.
The detail reinforces that spatial idea. Patterns flow between mosaic floors, painted surfaces, metalwork and furniture. A handrail or door fitting belongs to the same design as the rooms around it. The accomplishment is coordination across scales, from the structural arrangement to something touched every day.
Guimard: expressive form meets industrial production
Hector Guimard’s work provides a different view of the movement. His Paris Métro entrances, built from 1900, brought an unmistakable design language into the everyday infrastructure of the city. The organic forms were part of an industrial age, not a retreat from it.
Cooper Hewitt’s research into Guimard explains his interest in industrial technology and making design accessible through production. Cast iron, ceramics and other materials could carry an expressive character while serving practical purposes.
His encounter with Horta’s Hôtel Tassel in 1895 also influenced the development of Castel Béranger in Paris. Guimard adapted that stimulus to his own materials and formal language. Art Nouveau travelled through exchanges between designers, but its strongest buildings were individual responses rather than interchangeable versions of a European fashion.
There was more than one kind of new
Charles Rennie Mackintosh offers another useful point of comparison. The V&A places his work at an intersection of Arts and Crafts principles and Art Nouveau’s creative freedom. Attention to materials and the unity of the interior could coexist with a more geometric expression. The familiar opposition between straight lines and curves is too crude to explain the movement.
For anyone considering an existing building or planning an interior, Art Nouveau’s most useful lesson is the relationship between decisions. A staircase, window, light fitting and piece of joinery can reinforce the same spatial idea. Achieving that coherence requires more than applying a recognisable motif; it requires thinking from the room’s organisation through to its smallest detail.
Cover photograph: Castel Béranger, Paris, by Arthur Weidmann, via Wikimedia Commons. CC BY-SA 4.0. Resized; cropped in some previews.
Related reading: Art Deco Architecture · Biophilic Design in Architecture.
