I am arriving around 9:30 and want to know whew the accommodation office is foe Goldsmith Hall?
Not a clue, sorry
The accommodation office is in Regent House, Building 10. As you enter the college from the front gate (off College Green) and are facing the Campanile its to your left by the Chapel. There were signs pointing to the accommodation office as well. They probably wont let you check in at 0930 but you can leave your bags at the office and pick them up later when your room is available.
Get an answer from Trinity College Campus staff and past guests.