Dropped by here on the way home from the airport and without coords I found a survey mark on the corner of the roundabout. Put the coords in and it said the trig was 45 metres away. Crossed the roundabout and looked along the wall of the property on Rosebery Rd finally spotting a 'Survey' round hatch right in the disused driveway of the house. Opened it up to find nothing but the plug, no plate or number.

EDIT
On consultation with rogerw3 this conforms with the trig description so can be logged as a find.
Bring along a tool to open the hatch!

Rated: for Overall Experience.