With the information gathered about the site or existing building and your 'brief' requirements, preliminary concept designs are prepared for discussion.  These are normally in the form of hand sketches of concept drawings.

From the preliminary designs a single concept is developed further.  Normally at this stage the design is modeled on the computer to create a three dimensional virtual building.  This enables you to visualise the project and view any aspect of the interior, exterior or siting  The computer model also allows accurate modeling of sun and shade to the building and compliance with District Plan sunlight and height planes.

At this stage a Preliminary Estimate of Cost can be prepared by a Quantity Surveyor to access the likely cost of the design against the project budget.