Good architecture is beautiful, useful and solid at the same time. But Vitruvius already said that.

Beauty (venustas) is the aesthetics and visual appeal of a building, which is brought about by proportion and harmony and appeals to the senses and emotions. Utility (Utilitas) refers to the function and usability of a building, which is expressed in terms of ergonomics, practical requirements, flexibility and adaptability. Strength (firmitas) is the stability of a building's structure, determined by the strength and durability of materials, in order to create safety and reliability.

This triad, which was developed by the Roman architect and scholar Vitruvius (Marcus Vitruvius Pollio) in the first century BC, has always been an important basic architectural principle. These theories can be interpreted and further developed for today's building and adapted to the contemporary context. In order to unite the aesthetic, functional and structural requirements in today's world, a number of challenges need to be overcome, particularly in the interpretation of the concepts of beauty and utility.

Vitruvius' triad of beauty, utility and strength can ultimately be expanded today to include sustainability and social responsibility. This defines the essential dimensions of a good architectural language.

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