Thanks for that

.
But it is much easier to use a real model as a building, and then adjust the filling degree accordingly, to account for other buildings on the lot.
The main building is no longer a prop (now an agricultural industry building via SC4PIM). When you say "account for other buildings", how do I do that? Is there a method, or is it educated guesswork?

Secondly, I have an extra farm/field lot without a building (lotted with an invisible building). I put a sign next to it, as often happens in RL - but I can't figure out why that lot's orientation is random (sometimes the sign is on the road, other times in the middle of the fields), whereas the two lots with buildings always grow in the same direction relative to the road...?
Thirdly (I don't ask for much do I?

), something weird is going on with my lots. I am basically finished and was making sure all the names of buildings in game were right - and noticed when I change the name in the building exemplar of my stage 3 lot, the name change occurs on my stage 1 lot - while my stage 3 lot remains unchanged...??
There has been quite a bit of copy/paste-ing in this projects as exemplars mysteriously vanished from files and had to be replaced by earlier working/existent versions, so who knows what I've ended up doing exactly.
I will post a copy of the file here in case someone can be bothered working out what's going on here - it would be greatly appreciated. (This is just my 3 farm lots - a stage 1, 3 and a field only stage 1 plus the field itself and the main building).
Thank you.