Found out the hard way that, if you had the achievement for having a building at level 10, erase all data, then import your save with the level 10 building, the achievement for the level 10 building will not unlock.
Why did i erase all my data? Cause my CC wouldn't load, no matter what i did. Thankfully, i keep regular saves, but i guess achievements aren't a part of that.
Anyway, erasing all data made it work again, so now i gotta re-achieve all.
This is just a friendly warning to everyone who doesn't know.