Which Scottish architect designed the Glasgow School of Art in an Art Nouveau style?

The Scottish architect who designed the Glasgow School of Art in an Art Nouveau style was Charles Rennie Mackintosh.

Mackintosh designed the school’s celebrated building on Renfrew Street in Glasgow in two main phases. Construction began in 1897; the eastern half was completed in 1899, while the western half followed in 1909. The result combined strong geometric forms, carefully controlled natural light, and restrained decorative details.

The building is regarded as a masterpiece of the Glasgow Style, Scotland’s distinctive contribution to Art Nouveau. Mackintosh balanced severe verticals and right angles with subtle curves and stylized floral motifs. His designs also absorbed influences from Japanese art, the Arts and Crafts movement, and Scottish architectural traditions.

The answer is sometimes complicated by the major creative role of Margaret Macdonald Mackintosh, his wife and artistic collaborator, particularly in decorative and interior work. Mackintosh, however, was the architect responsible for the building’s architectural design. The Mackintosh Building suffered devastating fires in 2014 and 2018.