[dagw]

That sort of precedent seems like it will just lead to abuse. Buy a less desirable plot of land, 'accidentally' build on a nicer plot near by, force the owner of the nicer plot to hand over their land to you (Since they're just a bit different and not "completely different").

[sgift]

I'm pretty sure judges can reasonably find the difference between willfulness and accident (as the article states, multiple people who had no reason to help the builder missed the error) and decide accordingly.

[dagw]

But why should you be rewarded for your fuckup by taking my land from me? Why should I be punished for doing nothing wrong by being forced to take a possibly lesser plot of land.