Preconstruction Phase

During Preconstruction, the project architect commences with construction documents, which translates the early planning exercise into contract documents that will be submitted for building permit and conveyed to the contractor to define what exactly is being constructed. In architecture parlance, the development of construction documents is generally broken into three phases: schematic design (SD, which is sometimes included in the Planning Phase noted above), design development (DD) and construction documents (CD). Generally, the completion of SD phase means the drawings are about 20% complete, DD is 70% and CD is 100%. In many jurisdictions that have a complex set of approvals, an extended DD set is often prepared as a plan check set for application for a building permit.