Section 1: Characteristics of global contracts

The purpose of the preliminary design studies is to :1° Specify the general composition in terms of plan and volume;2° Assess the internal volumes and external appearance of the structure;3° Propose possible technical arrangements and, where appropriate, recommend additional studies of existing structures, particularly in the context of reuse and rehabilitation operations;4° Participate in checking the timetable for completion and, where appropriate, the division into functional phases;5° Participate in checking…

The purpose of the final preliminary design studies is to:1° Determine the detailed surface areas of all the elements of the programme;2° Establish the dimensions of the work and its appearance in plans, sections and façades;3° Define the construction principles, materials and technical installations;4° Help to check that the elements of the project and the services are consistent with the general economics of the overall contract.

For new housing developments, the preliminary design and final design studies may be carried out in a single design phase.

The preliminary design and final design studies include the preparation of the files and consultations within the remit of the project manager and required to obtain the building permit and other administrative authorisations, as well as assistance to the project owner during their examination.