De Saint-Cyr House, Art Nouveau townhouse in the Squares Quarter, Brussels, Belgium.
This five-story townhouse features an ornate facade decorated with polychrome brickwork and elaborate wrought iron balconies on each floor, showcasing geometric and plant-inspired motifs across its remarkably narrow four-meter width.
Constructed between 1901 and 1903 by architect Gustave Strauven for painter Georges Léonard de Saint-Cyr, the building was designated a protected heritage site in 1988 and underwent restoration in 2013.
The building represents Brussels' embrace of Art Nouveau during the early twentieth century, integrating decorative arts into residential architecture and reflecting the period's emphasis on artistic expression in everyday living spaces.
Located at Square Ambiorix 11 in the 1000 postal code area, the property is accessible via bus lines 56, 60, 63, and 64 at the Ambiorix stop in central Brussels.
Despite facing early criticism for its baroque-style ornamentation, the house became one of Gustave Strauven's most celebrated works, with its complex interior layout featuring interconnected rooms and a staircase illuminated by a floral stained-glass skylight.
Location: City of Brussels
Inception: 1900
Architects: Gustave Strauven
Architectural style: Art Nouveau architecture
Floors above the ground: 5
Address: Square Ambiorix 11, 1000 Brussel, Belgium
Website: https://visit.brussels/en/place/Saint-Cyr-House
GPS coordinates: 50.84781,4.38398
Latest update: November 22, 2025 19:39
Between 1890 and 1910, Art Nouveau spread across Europe, producing buildings that combined craft traditions with industrial techniques through organic forms, natural motifs, and detailed ornamental work. Architects including Victor Horta in Brussels, Antoni Gaudí in Barcelona, and Otto Wagner in Vienna designed structures that departed from historical revival styles, instead emphasizing curved lines, wrought iron elements, and colored glass. The movement encompassed concert halls and railway stations as well as private homes and commercial facades, creating a body of work that remains central to the architectural identity of several European cities. Visitors can trace this development through multiple locations. Brussels offers the Victor Horta Museum, Tassel House, and Hôtel van Eetvelde as prime examples of the Belgian variant. Barcelona showcases Gaudí's Casa Batlló and Bellesguard alongside the Palau de la Musica Catalana with its elaborate tilework. Paris preserves Hector Guimard's Métropolitain entrances and the Lavirotte Building, while Prague presents the Municipal House and the Bedřich Smetana Museum. Nancy serves as a center of French Art Nouveau with the School Museum and Villa Majorelle, and Budapest displays the style through Gresham Palace and the Liszt Academy of Music. From Riga to Turin, Vienna to Belgrade, these buildings document a brief but influential period when architects reshaped urban environments across the continent.
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