I'm glad I could help! I only intended to fix a couple of wonky roads, but I got distracted! I basically ended up downloading the whole of the town to sort all the landuse out. If it helps, I actually deleted the multipolygon and retagged the outer way as residential, which made it a lot more manageable to split into smaller chunks. (But yes, still a good few hours). A lot of the landuse is still very big and overlapping with smaller areas so I might come back to it at some point.

Funnily enough, I did notice that you had edited a lot of things in Kettering and did wonder if you had noticed the landuse situation and whether you would care if it got split up & detailed!

While I'm here, I did remove a couple of give way signs in front of roundabouts; they are not necessary there. That's the only little nitpick I could find :) I didn't look that closely the other day, but I have to say I am a big fan of how neat and detailed all your buildings are!

If you need any help with anything else, just let me know!
Robert