Vitruvius and His Architectural Writings

Vitruvius wrote De architectura, or On Architecture, in the first century BC and dedicated it to Augustus. Its ten books explain how an architect should plan and construct buildings, extending the discussion to water supply and machinery. It is the principal surviving architectural treatise from Roman antiquity, preserving technical instructions alongside its author’s preferred proportions and forms.

On this page6 sections

Experience and the dedication to Augustus

In his dedication to Augustus, Vitruvius recalls service connected with artillery equipment under Caesar and his successor. He also credits the emperor’s sister with helping him obtain support. His writing draws on this technical experience and addresses the emperor’s programme of public building.

Vitruvius names earlier Greek writers and discusses Greek temple forms alongside Roman buildings. He expects an architect to explain a design and coordinate the knowledge needed to construct it. Geometry supplies measurements, while an understanding of materials and the site guides practical decisions.

Strength, usefulness and beauty

Vitruvius identifies firmitas, utilitas and venustas as requirements of a building: sound construction, suitability for use and beauty. Foundations and materials provide stability. The arrangement of entrances and rooms serves the activities inside, while proportions organise the appearance of the whole.

Location and intended use affect the plan. Vitruvius discusses exposure to sun and wind, the placement of rooms and the accommodation needed for different activities. His prescriptions connect design with the conditions under which a building will be occupied.

The ten books and their subjects

Book I discusses the architect’s education and the planning of settlements. Book II turns to materials and construction. Books III and IV treat temples, proportions and architectural orders, the standardized designs for columns and their related parts. Book V considers public buildings and facilities, including forums, basilicas, theatres, baths and harbours. Books VI and VII address houses and finished surfaces. The last three books extend the discussion to water, timekeeping and machinery.

The instructions join measurement with practical assembly. A builder needed to choose materials for foundations and walls, plan the roof and provide equipment for moving heavy elements into position. Roman building techniques explains the methods used to carry out this work.

Proportion and the human body

In Book III, Vitruvius uses the proportions of the human body in discussing temple design. Parts should relate to one another and to a whole through a coherent system of measurement. He describes the body in relation to a circle and a square, a passage later made famous by Leonardo da Vinci’s Vitruvian Man. Leonardo’s drawing reinterprets Vitruvius’s ancient written argument; it is not an illustration from his manuscript.

Proportional systems determined the relationship between column height, diameter and spacing. Vitruvius sets out dimensions for different temple forms and discusses adaptations within those arrangements. His human-body comparison supplied one account of how parts could be measured in relation to a complete design.

Public buildings and practical equipment

Vitruvius describes a basilica, a public hall for business and legal hearings, that he says he built at Fano in Italy; he specifies its columns, roof and tribunal, where magistrates heard cases. His discussion of theatres considers seating and the transmission of sound. Harbours require protection and construction in water. Each subject is explained through the technical demands of its intended use.

Water and machinery broaden the same concern with function. Book VIII considers finding and conducting water; Book X discusses machines used for lifting, moving water and military purposes. Mechanisms require suitable materials, dimensions and skilled operation. The inclusion of this equipment helps explain why an architect’s work could overlap with what would now be divided among several engineering professions.

Medieval survival and Renaissance editions

The treatise was copied through the Middle Ages. The British Library’s Harley MS 2767, dated to the first quarter of the ninth century, is its oldest known surviving copy. Renaissance readers encountered the work through this earlier manuscript tradition, before printing made editions available more widely.

Fra Giocondo’s illustrated edition appeared in Venice in 1511. Diagrams offered proposed forms for structures and equipment described in the text, while translations made the Latin treatise accessible to new readers. Alberti and Palladio drew on ancient architectural theory in developing their own accounts of design.

Vitruvius’s instructions preserve the calculations and choices behind construction. The article on Roman building types explains the functions served by these structures, and Roman architecture follows the development of their forms and methods.