This stage is to develop the information into a full set of tender documents for tenders to tender a lump sum fixed price contract. The documents need to be comprehensive in drawing general arrangement, details schedules and drawing specifications: in documents covering written specification, consultant documents and documents for the terms of tender, all for contractors to prepare full tenders. At this stage final decisions will need to have been made on materials and products and detailed for these elements to come together.

Target stage 4 is preparing a tender set of documents ready for issue to a number of builders to accurately cost \ or for a Quantity Surveyor (if used) to prepare a bill of quantities.