I recently had a person living in a mews address, and at least one census it was designated as "institution", so I had the knowledge already. I looked it up, as well, because he was stated as living at Greater (blah) Mews one time, and I was trying to trace him across different census returns. Finding there was a difference between the mews addresses helped.
(Side note: those same addresses in more modern times - the Mews ones - became quite the thing and rather expensive!)