The dimensions of the rooms, where given, are based on rough measurements taken by contractors estimating the cost to refinish and/or replace the hardwood floors. I realized too late that this left me without measurements for a large part of the house, as well as the basement and attic.
So, bear in mind that these are a rough idea of how the building is put together. All of the surrounding structure and other rooms were pieced together based on my memories of walking through the house, and the photographs I took during the final inspection.