My approach is to take the garage package as it is, with as little alteration as possible to the exterior. Only the height of the garage was extended by 2'. I consider the domestic program as a "big piece of furniture" that could be "inserted" into the garage.

The "piece of furniture" is a two-story high post and beam structure that is organized in a pinwheel manner. Each wall/beam of the pinwheel structure is extended on one end, dividing the interior into four quadrants plus the central area on the two levels. Sleeping area is located on the second floor, and the living area is sunken right underneath it. The remaining four quadrants are used as a porch, study, kitchen and bathroom.

The post and beam structure is chosen for a couple of reasons. First, the given exterior is a framed structure, which forms a shell around the house. The post and beam interior structure is self-supporting, and it can be seen as an independent object that is inserted into the shell of the house. This type of structure would also allow a greater openness in the different areas divided by the partition in the interior.