Heh heh, you never played around with expensive houses that have a lot of unused space.
I admit, you did get me on the hallway leading to nowhere. As for closets, we didn't have to put them in. But if you notice the way the doors open, that's where the closets would actually go. The dimensions aren't actually THAT big. This was just an exercise to get us back into CAD mode so when we built the walls, we were good. We didn't have to do wall widths but some of us did it anyway cuz it helped us think things out.
As for a garage, I admit it, I totally forgot about it. Regulations for Bellingham say "NO garages as part of the house". The regulations might be different now, but for 'older' houses, they are often set apart and because they are 'old', you can't remodel a house and ADD a garage. Go outside city limits and it's fine.
The idea for the 2nd floor stairs, next to it is an empty area. That was gonna be an open space. I just didn't desginate where the walls/floor would go for that. That's something my parents' house has. It's basically a big open space in the entry.
The master bath is kinda based on the remodel when I was married. I consider it 'more in the corner' and supposed to be big enough for a walk-in closet. We weren't worried about dimensions and people had all sorts of floor plans. The 10,000 sq ft plan I was fooling around with, I had no idea how to fill in the space. I had a recording studio as part of the garage, an enterainment area that could fit pool and other gaming tables, etc. I gave that up because as BK said, there would be a LOT of open space.
I worked on the hull twice now. I got the bow but it's pretty... sci-fi-ish. The stern I had to redo because it wasn't straight. I found that out when I tried to build the keels! Anyway, the house was just a school project. Wasn't overly serious or to a specific scale, etc.