I've been checking the runway out on the map: the village of Harmondsworth will cease to exist,
You speak as if that were somehow a bad thing...
Further to the west, though, I note that it's going to run fairly close to the British Airways headquarters at Waterside. Triple glazing?
Having sp[ent several years working in a portacabin whose triple-glazed windows were the only thing between me and the harriers on flight test (including accels runs and tests on the nearby hoverpan) about 100yds away I don't see any particular reason why this should be a problem. I've been in offices where the road traffic noise was louder.