We have just begun work on the biggest thing since building the treehouse itself.
You guessed it! An outhouse.
A modern, pine-scented, white-washed outhouse.
"Wait," you are saying, "it's a flood plain. Are you insane?"
No! Not quite... We are building it just off the utility path that branches from the main path. It is well up on the side of the swale.
It will still be a bit of a walk, but not the full kilometre people are walking now to get to the main house. Maybe 300 metres? I will be measuring it soon.
The hiking cat-hole solution to the flood plain problem was sustainable for six years. We are getting greater numbers of non-hikers now, though, and their inexperience leads to unsustainability (and a lot of work). We think this is the answer.
We will update as building progresses! So far so good.