A small description of the "residential zoning" domes, after some consideration of population dynamics and family models:
- Multigenerational: Having lived in such close quarters for two decades, families are accustomed to being in close proximity still. This is especially true of teep culture. So even when spreading out, they would do so in their own "mini-clans".
- Multilevel: with the dome-and-ring structure being as it is, there would be some model of above and below ground construction for the housing.
- Privacy and ownership: Each housing unit would have its own hedged-off garden area, with interior recreational areas like gazebos, utility sheds, playpens, and the like.
- Average age: most of the colony's adults at this point are what could loosely be described as "college co-eds". That would show through.
- Housing capacity: the zones have a pop cap of 3+1 compared to the Basic Housing Units' 1+1. Each Pop is 200.
So you'd see Founder gen pop couples moving in to this area in tow with their married kids in some way. Generally you'd expect 2 or so Founder couples per 'manor'. Call that on average 4-6 people. "Firstborn" (the children of Founders) would be in their own setup as well, with 4-5 couples (the closest-to-their-parents-siblings of one or two Founder couples, and their spouses). That's 8-10 people.
Kids -- thanks to exowombs and creche culture, people in Kithhame have kids earlier than contemporary society. So you'd expect each of the Firstborn to have on average 2-4 kids per couple. 8-20 kids per 'manor'.
That's just shy of 30 on average people per 'manor'. So 10 'manor's per Residential Zone. So give the "ground" floor as a common area, a basement and sub-basement for utility and storage, and two upper floors as bedrooms, and 15 square meters per person, and extra utility and maintenance access zoning, and you get a circle with a circumference of 1-2 kilometers -- meaning these residential zones are about 0.5km in diameter. The 'manors' themselves would be visibly about ten meters tall, and the domes at their central peak would be maybe 30-50 meters -- almost certainly with a common shaft tower of some sort to act as a support and access-way for the maglev system.
That gives an effective population density of about 245 square meters per person. To put this in contrast, Washington, D.C., has a population density of 225 square meters per person, putting this at somewhere between the sixth and seventh most densely populated cities in the USA today.