Deer Valley Airport is a large general aviation airport, with a flight school, and apparently in or near an industrial park.
KPHO CBS Channel 5 reports, "The building is occupied by Citywide Pest Control."
A KTVK news helicopter saw the crash and reported that "the plane appeared to be trying to land on Runway 7-Left, which is surrounded by buildings."
CNN is reporting that it was believed to be a student pilot; however, the KTVK website says, "There's no information at this point about the pilot or any passengers."