Any way to place Zerg buildings so no creep appears in game?
Well, they all will produce a tiny portion of creep directly under their spot, but only creep/spore/sunken colonies and hatcheries/lairs/hives create an extending amount of creep.
Place it on "Invalid Terrain"(Terrain you can't normally build on).
That's the only way.
Oh, please move this to assistance.
Done.
ยป Moved to Mapping Assistance