My husband and I have been planning a round home for three years, a Monolithic dome. An online acquaintance (who is also planning to use concrete construction) sent me The Not So Big House and Creating* as a thank you for a favour - and I was already familiar with A Pattern Language.
Designing in the round is definitely providing some challenges: adequate and appealing second floor headspace, esp in the bathroom; setting in first floor windows for adequate height and functional (and attractive) overhangs; and outside, creating outdoor rooms next to the house without the benefit of walls/wings extended out from the main section.
We are very excited about starting construction, hopefully next spring. We have visited two domes in Canada - one built about 30 yrs ago, and one built last fall. We enjoy the enveloping feeling inside, and the freedom to design the interior as we wish, needing no supporting walls for the roof. Our first floor design sounds incredibly similar to yours, Carla!

Our master suite is in the ENE/E quadrant, the foyer in the NE, living room NW, dining W, office area SW (hopefully with a curved concrete desktop following the exterior wall!), walkway/morning coffee/spot for drafting table S/SE, and the kitchen right in the middle of everything.
This is pretty long for a first post.

I look forward to reading and participating in discussions here!
"Every minute of every day, we choose. Who we are, who we forgive, who we defend and protect. We choose a side, or to walk the line...to play the middle...to straddle the fence between what is and what should be..."