One of the most basic tasks for an architect is floor plan design. This seminar looks at techniques to compare and sort thousands of variations of residential floor plans. Students will use Grasshopper to set up criteria and analysis tools to help them explore a large amount of computer-generated house designs. We will consider ways to calculate the following features for each planning option: time for building, volume of material, volume to surface area ratio, building footprint, solar gain, overshadowing, orientation, views. A survey with home owners will help students focus on the important aspects to analyse. Grasshopper tutorials as well as introduction to computational analysis will be provided. At the end of semester, students deliver: a digital analysis routine in Grasshopper; a 2 minute video; and a booklet.