Last edited 01 Mar 2019

JCT Design and Build Contract

The Joint Contracts Tribunal (JCT) Design and Build Contract (DB) is intended for use on construction projects following the design and build procurement route. This involves appointing a main contractor to design (or complete the design) of the project and then to go on and construct it. This is as opposed to the traditional procurement route in which the client appoints consultants to design the project and then a contractor is appointed to construct it.

Design and build gives a single point of responsibility for delivering the entire project, and can help ensure good buildability, cost control and speed. Some clients however, consider it is only appropriate for simple projects, where retaining control over the design is not the main priority.

The scale and complexity of design and build projects can vary considerably, but the DB contract is generally suitable for projects where a detailed agreement is required, making provision for collaborative working, sustainability, advance payment, third party rights, bonds, collateral warranties and so on.

The 2016 edition of the contract includes the following documents:

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