The Preliminary Schematic Design Phase starts with sketches showing possible designs for interior floor plans and exterior elevations (facades). Initially, these sketches are used to verify that the homeowner's program (i.e. vision for the project) can be accommodated. These sketches also explore design options for both functionality and aesthetics.
It is normal for homeowners to describe a desired scope of work that exceeds their stated budget. The early sketches will explore projects of various sizes and will typically include one for the desired scope, one for the desired budget, and one that is somewhere in between.
Initial reactions to these early sketches, followed by an iterative process subsequent sketches and discussions, helps the homeowner reach a conclusion on the preferred design and project budget.