For decades the Deer Valley Airpark area has been one of the fastest growing regions of commercial real estate in North Phoenix, but these days it's looking more and more like a ghost town.If you were to drive the two-mile stretch of road between Deer Valley Road and Happy Valley Road like I did today, you would see a startling number of For Rent signs in a sea of mirrored glass buildings. So why are there so many empty office buildings in North Phoenix?



