Turns out this ain’t even necessary. It’s better just to build the house itself as a spar, or by refurbishing a spar salvaged from an old oil rig.
Turns out, it was already built, but with the usual government gang waste and largess back in 1962:
Cost 600k back then. So, today that would be 5 million USD.
If it were built B2B, and only as a living structure that stays in one place, rather than a movable research platform, I reckon it wouldn’t cost nearly 5 million.
And 5 million ain’t really unreasonable even for a mansion on land in California.
This thing is made to house 16 crew and researchers for a month.
So, say it was made instead to house 8 folks - 2 families of 4.
A median price for the top-tier house in California is 1 million.
So, if this spar is made for 2 families, that’s a 2 million USD dwelling on land.
Seems like if it could be built for 3 million or so for a seastead, that would be a reasonable price to house 2 families in offshore environment.
Say the top of it were made more egg shaped, instead of half moon like this contraption is, and with none of that boat and research equipment. Maybe something like a giant golf tee?
Seems like it would have even more space. Maybe even enough for 3-family dwelling?
What’s great about this design, is that it could definitely sustain hurricane waves and winds, if shaped properly, and it has lots of tanks for fuel/water/whatever storage underneath, easy exit for scuba and watercraft.
So, if we just don’t get hung up on the house shape, and don’t try to emulate land houses on barges and what not, seems like it wouldn’t be as expensive.
It wouldn’t need a breakwater of any kind either, and be much more stable than any boat or barge.
Also, if I understand right, from Joe Quirk’s book, hurricanes don’t cross the equator.
So, if you put the initial seasteads on the equator, they wouldn’t face hurricanes anyhow.
The ones built later away from the equator, can be built leeward of the OTEC power stations, which would cool the ocean enough to weaken or eliminate hurricanes.
As the book puts it, according to Takahashi, once OTEC is widespread, “…hurricanes are not a threat to seasteads. Seasteads are a threat to hurricanes.”