Hello,
You've changed "building=residential_home" on https://www.openstreetmap.org/way/326141636 and some others here, but it doesn't mean what you think it does - it's nothing like the examples at https://wiki.openstreetmap.org/wiki/Tag:building=residential?uselang=en-GB .
The website of the place itself appears to be https://www.mha.org.uk/care-homes/dementia-care/mayfields/ - that should give you an idea of what it is.
In this case better tagging would certainly include an amenity and.or healthcare value.  The website pictures suggest "fairly typical for this sort of place", so a taginfo search would help find suitable candidates.
The others, such as https://www.openstreetmap.org/way/286059284/history , would need further investigation, and possibly a survey.  I certainly would not assume that "building=residential" was necessarily correct
Best Regards,
Andy
