Know Anything About Oregon?

I posted here before about where the best place to homestead would be, but my husband and I are both still set on Oregon. Though a new twist has shown up. Now my parents and possibly my friend would like to share the land. This would mean building separate houses on a single piece of land with a communal farm in the center and possibly (most likely, really) separate little personal gardens per home. Unless this endeavor grows, we're looking at a total of 3 houses and 6 adults to start out with. So I was wondering, best areas? Is it illegal or generally not allowed to build that many properties on one chunk of land? Looking for places with good soil (at least decent) and decent weather. What we're hoping to do is organics and a kind of mini well functioning ecosystem set up. Am I making sense? Anyway, help would be greatly appreciated and thank you in advance

That depends in county. Different laws pertaining to housing. Some involve kitchens. Some involve individual dewellings. I need to study up on this as well (here in Oregon)...

Some of the most fertile land can be found in the lowlands of the Umpqua and Rogue Rivers. Both are fed initially from the volcanic rich Cascades and stretch all the way to the ocean. Unfortunately; much of the Rogue is uninhabitable do to geology.

Think outside the box. Connecting two dwellings via a large greenhouse (kitchen on either side) might bypass some hurdles?

What a brilliant idea I'll also be doing my homework here soon, figured I would get some input first though. are there areas that are okay with it though? I just wanted to see if it was a state wide type of thing. Maybe buy multiple properties and knock the fences down? Hmmm. Hopefully I can figure it out in 2 years! Thank you kindly!

Oregon is a state with more laws than freedoms..... however

One can add additional houses (for farm workers) with the right Agg zoning of course.
And one other home for a relative with a qualifying 'hardship', restrictions apply.

All of this depends on approved septic systems, water availability, proper roads etc.

Easiest way would be to buy dividable land (see zoning), and plan for the septic, power, roads and water before dividing.
Put in the infrastructure, and out buildings with power. Then divide and change the zoning. With roads, power and buildings this will be easier to do.
If you are wanting to divide to R5 zoning (residential 5 acres) then you must have over 10 acres to divide. The zoning dept. requires a bit over for easements and such.

And every so often you can find joining plots for sale

All the best,