I have, at several times, lived at sea. I do like the sea. There are some practical considerations that has made those stays less than ideal, however. Some things, like social interactions, are limited, in obvious ways. Shopping, getting repairs, and similar interactions with businesses and people necessary to daily life, are immeasurably more difficult when you can't just hop in your car and go, and the people you need to come to you can't do that either.

By preparing for your commutes, you can mitigate this issue, although it won't go away, however, it is far more difficult to get folks to come to you.

In the decades that have passed since I last lived on a houseboat on the ocean, the internet, solar and other renewable power generation, composting toilets, and similar technologies have dramatically improved the functionality of floating homes. It still is not trivial to handle all those issues.

Additionally, unless you are an expert in the design, maintenance, and repair of all those systems, getting technical assistance at sea (think about how expensive a plumber is on land) can be outrageously expensive.

Siting several such homes in a neighborhood does make such costs less prohibitive, particularly if you can choose neighbors with skills that supplement your own.

None of this makes me want to do this any less, but it has kept me from doing it. I just got my truck back today, and it cost me $50 to replace a fuse (the fuel pump relay has a fuse on it, that is not on the fuse block, so I didn't find it). I assure that had my boat broken down, the bill would have been orders of magnitude higher for the very same repair, and I would not have been able to push it to the mechanic.

I really do not want to discourage you, but I even less want you to expect things to be one way, and only too late to find out things are dramatically different, to your regret.

One way to reduce all of these costs on a personal basis, is to simply start out with multifamily structures, rather than single family homes. With a large enough community, and rational personnel decisions, many of the costs of technical help can be hugely ameliorated, as well as construction and other costs.

Something to consider.

Thanks for making my eyes light up with interest. You rarely fail to do that!