That's really awesome that aerial imagery is published under their opendata licence. Do you know if anyones converted it to a tile map on a public server? It'd be nice to add it JOSM

Also curious, would you mind posting a screenshot of the imagery you used to trace way/460776119 ?

oops that first example should be way/460575419

Well I'm really quite impressed with the level of detail of the footprints. Both Mapbox or Bing imagery are of such poor quality around here and don't even show a bunch of buildings you mapped such as way/44520310
way/460575471

Could you elaborate on your process?

Hi, just wanted to point out osm.wiki/Good_changeset_comments
Happy mapping!

Hi, how did you go about mapping these footprints?

Hi, how are you mapping these building footprints?

I took a quick look and there seem to be at least a few buildings which don't appear on Bing imagery (and some not even on Mapbox or Google Satellite for that matter)
way/459024661
way/459024610
way/459029092

But meanwhile you seem to have forgotten some obvious ones:
osm.org/#map=19/44.63347/-63.93641

How did you manage to map them if they arn't visible? Also out of curiosity are you new to OSM?

Hi, How did you map these buildings?

Hi, how did you go about mapping these buildings?

I fixed a couple others.
North Gower has (had) both a township (Q14875358) and the town (Q14875357) by the same name.
Alexandria had the wrong wikipedia page. It's a funny one. The coordinates from the Fr page are completely wrong for the town and the coordinates on the other langauage pages are all considerably different.