How did Art Nouveau furniture connect with the architecture of its time?

Art Nouveau furniture was deeply connected to the architecture of its time through a deliberate effort to create a unified, organic environment, moving away from the imitative historicism that dominated the 19th century.12

This connection manifested in several key ways:

• Fusion of Structure and Ornament: In Art Nouveau, the distinction between a building's structure and its decorative elements often dissolved. Architects and designers created interiors where columns and beams were transformed into thick, vine-like forms with spreading tendrils, while windows functioned as both light sources and organic, membranous outgrowths of the building itself.2
• Coherence of Design: Art Nouveau furniture was frequently designed en suite to ensure it harmonized with the specific rooms and houses for which it was created. This resulted in a profound coherence between the furniture and the architectural space.31
• Individual Architect-Designers: Prominent figures of the movement exemplified this integration. For instance, the furniture of the Spanish architect Antonio Gaudí shared a deep, organic coherence with his buildings, while the stylized furniture of the Scottish architect Charles Rennie Mackintosh was designed as an integral part of his interiors in Glasgow. Similarly, the Belgian architect Victor Horta utilized sinuous curves in his furniture that mirrored the natural, flowing forms of his architectural designs.13