I have finally been contacted by the applicants agent.
I have a map which shows that the consultation area will be for part of the land west of the HRR (the Trowbridge side). More specifically, the fields roughly bounded by Wyke Road, Victoria Road, Osbourne Road and the HRR. The area does not currently include the land owned by Wiltshire Council.
If you go to my web posts dated 11th and 14th January you will get details of the ownership (HGT Developments Llp).
If you would like an electronic copy of the map, please contact me.