That went in the last Parliament
If not earlier!
Work on the pre-application phase of planning was put on hold in December 2020, though I can't find any note of that on the three WRaTH threads on this forum (that I've found - there may be others!).
Stopping work was not a formal planning step, so never recorded on the PI web site. In October 2023 they asked
NR» :
It appears that no significant action has taken place on this project for some period of time and therefore, it would be extremely helpful if you could provide an update to confirm:
a) Whether the Applicant still intends to submit the application;
b) If so, any estimated timescales for doing so;
c) The point of contact (with their details) for this project.
NR didn't reply until prodded in May, when they said:
The project how now been stopped with no further funding to take it forward or future plans for funding in the pipeline from either Department for Transport or Heathrow Airport so please consider the project closed with no future submissions.
You might consider this a harbinger of Rachel Reeves' bonfire of the "Micawber" projects.