This paper looks at the evolution of the structure of construction contract documentation over time, from ancient Greece through to the near future, in terms of the degree to which the contract documentation is integrated. Documentation might comprise anything from a single ‘integrated’ text to a range of ‘dis-integrated’ documents, fashioned by different players in the procurement process and not offering an easily appreciable integrated whole. The paper ends with the hope that new digital methods of information production will lead to better integrated and more easily readable ‘wholes’ in the new forms offered by building information modelling (BIM), which in turn will facilitate collaborative working.The paper shows that contract documentation has evolved through four stages of integration: Integrated: up to the end of the medieval period construction contract documentation was essentially fully integrated – everything that was required was stated in the one written document, which typically covered contract conditions, building layouts, assembly descriptions, quantities of components and requirements for quality.