Hi there,
came to say this is a superb job.
There are many areas around Peterborough that don't have buildings mapped, and it is a daunting task to draw them all.

If you'd like to help mapping more of them, I would suggest using https://rapideditor.org/edit 

It has AI generated buildings outlines, and 80%-90% is good to go. No, it's not a silver bullet and some manual intervention is still needed, but it definitely speeds things up.

Have a look, and keep up the good work updating OSM.