I flagged a few footprints that look like they envelope multiple buildings. I mapped some of these in chageset 168805126 so you can see my interpretation. ---Take care to not include the walls of buildings in the size and shape of the footprint in Bing the NE walls of some buildings are visible. aquire the footprint by tracing the roof and move it to the base of the buildings. It's generally more accurate to map footprints slightly smaller than the roof of buildings where it likley extends beyond the walls. Hope this helpful.
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            Published using OSMCha: https://osmcha.org/changesets/168485385
            