I think Berklee’s 160 Mass Ave building opened in 2015. 16 stories with dorms, Caf and a lot of studios/labs/rehearsal rooms. I believe the price tag was in the $100 million range.
U Mich recently (2015 or 16?) renovated the original School of Music building, to the tune of $30 million. I think they generally updated the building but I know there was a big improvement in studios / technology.
The Kohl building at Oberlin is relatively recent, within the last 10 years. I know the jazz dept is in there.