Here is another example of homes with multiple forms of external obsolescence. In addition to being on the Flight Path from O'Hare International Airport some of those in this photo back to railroad tracks.
External obsolescence from being under the flight path of low flying aircraft is a big problem for people living in Park Ridge, Norridge, Harwood Heights, Des Plaines, Mount Prospect, Arlington Heights, Elk Grove Village, Bensenville, Itasca, Wooddale, Elmhurst, Addison, Franklin Park, Schiller Park and parts of Chicago.
If you live in close proximity to an airport there is no way to avoid airport noise, its just typical for the area, but if you can avoid it don't buy a home that is directly under the flight path.
Now its easy not to buy a home backing to railroad tracks, but how do you avoid buying one under a flight path. Now you can stand in front of a home you are interested in and watch the sky and look for aircraft. This would be ok except they use different runways depending on the winds. So one day no airplanes and its quiet, and three days later 100 flights per hour.
If you are planning to purchase a home in any of the communities in close proximity to the airport this is what I recommend. Most maps show the airport runways. If you extend a straight line out from the runways to the community you are interested it will give you the flight path of the aircraft. Most of the takeoffs and all of the landings will be on a straight line. If that line intersects with your potential purchase, its on a flight path.
A good web site to track aircraft is Flight Aware