a single building isn't a "University" (at least in this case) https://wiki.openstreetmap.org/wiki/ES:Key:campus, see https://es.wikipedia.org/wiki/Universidad_Polit%C3%A9cnica_de_Madrid#Campus_y_centros_docentes

at least not a whole "university" https://wiki.openstreetmap.org/wiki/ES:Key:campus

might be part of https://www.openstreetmap.org/relation/3905196 campus https://wiki.openstreetmap.org/wiki/Key:campus

loads of old entries https://taginfo.openstreetmap.org/keys/campusbuilding . Current wiki details :https://wiki.openstreetmap.org/wiki/Key:campus

loads of old entries https://taginfo.openstreetmap.org/keys/campusbuilding

office https://wiki.openstreetmap.org/wiki/Key:campus

office https://wiki.openstreetmap.org/wiki/Key:campus

office https://wiki.openstreetmap.org/wiki/Key:campus

driving_school

moved to https://www.openstreetmap.org/node/10687918082

a campus isn't a "University" https://wiki.openstreetmap.org/wiki/Key:campus

a campus isn't a "University" https://wiki.openstreetmap.org/wiki/Key:campus

Not a "university" http: "GmbH & Co. KG für Technologietransfer" s://www.openstreetmap.org/way/1081574811 https://www.scmt.com/home.html

if it's a building, call it a building https://wiki.openstreetmap.org/wiki/Key:campus

canteen

office https://wiki.openstreetmap.org/wiki/Key:campus

office https://wiki.openstreetmap.org/wiki/Key:campus

office https://wiki.openstreetmap.org/wiki/Key:campus

office https://wiki.openstreetmap.org/wiki/Key:campus

wikipedia