Studios 301 (301 Castlereagh Street, Sydney, AU; fka EMI Studios 301; read annotations before use)

The studios, then known as Columbia Graphophone Studios since its founding in 1926 (see here) relocated in 1954 from their original site in Homebush to 301 Castlereagh Street, Sydney, and was renamed EMI Studios 301. It took on its present name Studios 301 in 1978. In 2017, it relocated to 3 Ellis Ave, Alexandria, NSW.

discogs notes:
do not use this studio for any recording/mixing relationships for recordings since Nov 1999; this was a mastering studio only, from Nov 1999 to 2006 (after recording/mixing functions were moved to Studios 301's Alexandria studios in Nov 1999)
mastering was also taken over by Studios 301's Alexandria studios since 2006.
prior to Nov 1999, recording/mixing/mastering handled by this studio was likely still credited under its former name EMI Studios 301.

see https://www.discogs.com/help/forums/topic/367909