Duh!

Developer Group Laments the Lack of Developable Land in Coastal Counties

Maybe because they've developed it all??

http://www.latimes.com/business/la-fi-orange-county-housing-shortage-20150330-story.html

"developable land is growing sparse along the coast"

...“The era of big master-planned communities is not quite over, but it’s ending,” he said

One Commenter: Interesting how the problem is always labeled as a housing shortage rather than overpopulation.