Lumping it is what London CIty Airport are offering to residents out east - plans to massively increase flight numbers and change flight paths with pretty much zero consultation, all signed off by Newham council. An airport that didn't exist 30 years ago, located 300m away from high-density housing, will be handling around 120,000 flights pa.
Luckily, it tends to be mostly poor folk and immigrants who live nearby so no wealthy or well-connected people are likely to be signficantly affected - I'm sure the expansion will go ahead without too much debate or unfortunate publicity
Had the delights of four days at the Excel centre for a conference a couple of weeks ago. Whenever a plane takes off the speakers had to shut up for a few minutes. Excel is already too expensive - if stuff like that happens more fewer events will book. The one I was at has already cancelled its return (for that and a couple of other reasons).
Economic impact can happen in ways that nobody seems to necessarily think about.