Needless to say, they hit a home-run with the very first draft.
Wow. That's great. The TT design has two pavilions. The front pavilion has the main bedroom and study. The rear pavilion is for kids bedrooms and living room. The corridor between them holds the utility rooms such as bathroom and laundry.
This is the upstairs for the front pavilion. This area includes the dining room, family room, kitchen, scullery, and decks.
My favourite thing about this design is the orientation on the block. Rather than being square to the street, the house is angled to face the sun. The angle creates four outdoor areas which are "tied" to the house through windows, doors, and decks.
This integration of the outdoor areas with the indoor rooms finally convinces me that a knockdown-rebuild is the best option.
