In Titahi Bay were originally 3 masts.
https://www.google.com/maps?ll=-41.09594,174.84929&z=16&t=h
2 were demolished ~2016.
The mast at -41.0944361062552, 174.84992300127362 stayed and was used.
Now (2022) it is gone, but at -41.09605925892245, 174.84281246542062 a new mast is available (the old one has been blown up in 2016).
Marco (2023-01-13)
The mast in Titiha Bay is still used by four stations
Radio New Zealand National on 567 kHz
Southern Star and AM Network on 657 kHz
Newstalk ZB on 1035 kHz
Te Upoko O Te Ika on 1161 kHz
Ydun Ritz (2023-01-14)