There is an emerging view in the construction industry that better performance or better value for money can be achieved by integrating teamwork for planning, design and construction of building projects. There are though, two opposing perspectives regarding how changes in traditional design practices should occur. Advocates of sustainable construction in North America posit that it is a matter of evolving processes, moving from a sequential to an iterative
approach to design, whereas the British government supports the view that a change in how projects are procured is required to transform the context that dictates relationships among the members of the team. The objective of the research is to study the influence of procurement on
the performance of integrated design teams. It analyses, through case studies representing these two perspectives, the influence of procurement on the performance of integrated teams. The research is conclusive in that it is the context created by contractual relationship, and not the
process set up for conducting integrated design, that most influence team efficiency. It demonstrates that traditional procurement processes reinforce socio-cognitive barriers that hinder team efficiency. It also illustrates how new procurement modes can transform the dynamics of relationships between the client and the members of the supply chain, and have a positive impact on team performance