The headline description of one bedroom, one soaking tub and a solar array brings to mind something far smaller than they’re actually planning to build. Sounds like a tiny house instead of 2,600 sf.
Not quite as large but sounds more or less like what I want to build on our property in Hawaii. Want it totally self contained. With a huge deck and then a few smaller bedroom/bathroom self contained units around the deck for visitors. Actually got the idea from this gal. I don’t want a tree house though. Lol
https://m.youtube.com/watch?v=JA_IyKCeppY