Working on a new scenery for Heathrow, just in my spare time.
So far, the north taxiways, and the north part of T5A are complete. The holding short area of 09R is also complete.
I then moved on to do the entry point where workers at T5 enter the airport:
The white building is basically a checkpoint.
Small parking area to get a cup of tea before you go through the checkpoint, I imagine?
More parking, beyond the checkpoint. I think this is for the catering buildings.
Again, more parking and the road.
https://imgur.com/a/4WDax