The concept stage in most cases follows the feasibility and or option studies with a standard stage output of a refined project brief and concept approval.

PAS 1192-2 Notes that at the concept design stage the graphical design might only show a massing diagram or specify a symbol in 2D to represent a generic reference. The models usually communicate the initial response to the brief.

At this stage the models may be used for early design development, analysis, sequencing and estimating purposes to inform relevant stages PLQs.

During this stage the Client Information Model (CIM) and Employers Information Requirements (EIR) will have been completed to facilitate the supplier procurement process.

For further information in relation to this stage, please refer to the Concept Stage Video. For next steps within this stage, please refer to the Concept Stage Checklist and associated tasks listed on this page.