It would be good to review these buildings carefully instead of adding them blindly. For example, https://www.openstreetmap.org/way/1150289618 is actually two buildings. The garage is separate, the roof just happens to overlap with the house's porch. And another example, though not in this changeset: https://www.openstreetmap.org/way/1150289947. This shape is totally wrong. It should be a simple rectangle, but here you've mapped it with a bit jutting out. A neighboring building, https://www.openstreetmap.org/way/1150289647, is no better. You've mapped a detached garage as part of the house.

It is clear by the RapiD (pun intended) pace at which you're uploading these changesets that these buildings are not being properly reviewed, and thus this constitutes an undocumented import.