Does a building's shape have to follow its purpose, or is that just a myth?

Science · Published 20 October 2026 · Updated 21 October 2026 Swipe more like this →

In short: Functionalism suggests that a structure's form should emerge from its practical use, materials, and engineering. While often linked to 20th-century modernism, this philosophy has roots in medieval military design and Gothic architecture. Yet, the concept remains deeply contested, with some architects arguing that function is secondary to aesthetic expression.

The doctrine of functionalism posits that architecture should prioritize utility, materials, and structural integrity over preconceived stylistic notions. While modernists like Le Corbusier famously declared that a house is a machine for living, this was a polemical stance rather than a literal demand for industrial efficiency. In practice, fulfilling functional needs still leaves architects with numerous choices, meaning that the quality of a building depends on the designer's specific decisions rather than the mere satisfaction of requirements.

Historically, the functional tradition appears whenever practical demands dominate design, such as in early medieval military structures or 19th-century industrial buildings. The modern movement, which gained momentum in the 1920s, sought to reunite architecture with engineering after the two fields diverged during the 19th century. This shift was driven by new building techniques and a desire to move away from the historical revivalism that had long dominated the field. Architects like Mies van der Rohe and Le Corbusier became synonymous with this era, producing radically simplified, unadorned structures that aimed to express the building's purpose clearly.

However, the term has become a source of significant confusion and controversy. Louis Sullivan, who coined the phrase form follows function in 1896, originally intended it as a metaphysical expression of organic essence rather than a mandate for utility. By the 1930s, the concept was often conflated with a simple lack of ornamentation, leading to its use as a pejorative term for cheap, brutal commercial spaces. Today, the debate persists, with some architects like Philip Johnson and Peter Eisenman rejecting the idea that the profession holds any functional responsibility at all, highlighting the ongoing tension between architecture as a practical service and as a theoretical pursuit.

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