I know people will disagree, but I really don't feel it's any of my business to go to the council. If my land adjoined theirs then maybe, but I live at the other end of the village so it won't impact me at all. The landowner applied so the council should probably check no work has commenced.
So after 4 years, they could apply to build a few houses and the council would have to grant permission? Even though they refused permission for the current building and anyway, they building they've constructed is supposed to be an office, not a dwelling?