Art Nouveau Residential Architecture: The Arch House in Portugal

The Arch House in Paredes de Coura, Portugal, designed by Tiago Castro Sousa Lda, is a striking example of Art Nouveau residential architecture. Originally built for commercial use as a pharmacy, the structure stood as a prominent architectural element within the village, defined by its elegant stonework and large openings. However, the interior lacked the grandeur of its exterior, with small, compartmentalized rooms that did not align with the house’s refined façade. The renovation aimed to transform the house into a harmonious living space while embracing the elegance and artistic expression of Art Nouveau.

The Architectural Transformation

The project sought to bridge the gap between the home’s exterior grandeur and its interior functionality. The original structure had a central space flanked by four smaller rooms, creating a disjointed and restrictive layout. The attic housed two bedrooms, accessible by a narrow, enclosed staircase, reinforcing the sense of segmentation. The redesign introduced a seamless spatial flow through the use of arches, open spaces, and natural light.

The Arch as a Defining Element

One of the most significant design interventions was the incorporation of arches as both structural and aesthetic elements. The arch, a timeless architectural motif, was used to organize the interior space and evoke the Art Nouveau style. On the ground floor, two prominent arcades subtly divide the space into three distinct yet interconnected zones: the kitchen, living room, and dining area. This open-plan concept enhances spatial fluidity while preserving the elegance and ornamental quality characteristic of Art Nouveau.

Interior Elegance and Materiality

The use of natural light played a crucial role in reshaping the atmosphere of the Arch House. Northern light, soft and constant, was harnessed to create a tranquil and serene environment, particularly in the private quarters. The staircase, a sculptural concrete structure clad in wood, serves as both a functional and decorative element, aligning with the geometric precision of the arches. Through careful material selection, including wood, stone, and refined metal details, the interior reflects both modern comfort and historical artistry.

Functional Zoning and Spatial Organization

The renovated house follows a logical distribution of spaces across three levels. The entrance level features a single open-plan area divided by arches, providing visual and functional separation between communal spaces. The upper floor serves as an office and support area, while the semi-buried lower floor accommodates the bedrooms, a bathroom, and a laundry room. This arrangement ensures that private areas maintain a sense of calm, shielded from the more active social spaces above.

The Influence of Art Nouveau in the Renovation

The homeowners, passionate admirers of Art Nouveau and the Arts and Crafts movement, sought to embed these influences into their living space. The renovation preserved the house’s historical character while integrating contemporary elements that complement the ornate nature of Art Nouveau design. The arches not only serve as a unifying design feature but also reflect the era’s preference for organic forms and flowing lines. The result is a home that is both functional and artistically evocative, fulfilling the vision of creating an architectural work that embodies Art Nouveau ideals.

The Arch House exemplifies the successful adaptation of Art Nouveau residential architecture in a modern context. Through the thoughtful use of arches, open spaces, and refined materials, the house now offers a living experience that aligns with its original grandeur. This transformation highlights the enduring beauty of Art Nouveau design principles, proving that historic styles can be reinterpreted to meet contemporary living needs while preserving their artistic essence.