venustas

The term "venustas" in architecture refers to beauty or delight, one of the three essential qualities of a building, alongside "firmitas" (firmness or structural stability) and "utilitas" (utility or appropriateness). This concept originates from the Roman architect Vitruvius. While "venustas" literally means beauty, it implies a visual quality that evokes love.1

In Roman architecture, "venustas" was achieved through harmonious proportions, similar to those in music, which create pleasure. This beauty was also expressed through ornament, which was considered an "auxiliary brightness" dependent on appropriateness and seemliness. The Romans adapted Greek architectural orders, such as the Doric, Ionic, Corinthian, Tuscan, and Composite, often elaborating on them with decorative elements. Roman interiors also showcased "venustas" through rich colors, mosaics, painted walls, and decorative motifs.123