Subdividing a large lot?

I built a tiny house village on a 64x64 lot. 5 houses on the lot, with 8 residents. Three of the houses are occupied by three individual Sims, then the other two are occupied by a single mom and her daughter and the last house is occupied by a single dad and his twin sons. It’s a lot to watch over; 8 Sims is the max you can put on a lot. When playing that many sims with that many houses, you have to make sure to lock doors for each household so that the other sims dont try to take over homes that aren’t theirs. I would suggest not using any laundry day items like a washing/drying machine or clothes lines, unless you want keep doing laundry majority of the time. The bonus for playing a lot like that is that sims never get lonely and it keeps you busy for hours just caring for each sim. Also you want to make sure a few of your sims have the “neat” trait otherwise you’ll be running around trying to make them clean. The cost of running a lot with that many houses is about $20,000 simoleons, at least for the lot I built.