Thanks! I know there are a few other comments about semis/terraces which need splitting. I’ve run out of time to do those today, but if you’d like to do it, just enable the OSMUK Cadastral Parcels overlay in ID, set the imagery offset to -0.49,-1.41 (which is what I think the offset is between Bing and Cadastral Parcels for Casterton), and split the buildings. I find it’s easiest to temporarily remove all the tags from the buildings to prevent them turning into multipolygons, then re-add the tags after splitting is complete. :)