"There are no big parcels of land left," said Delores Conway, director of the Casden Forecast for the University of Southern California (USC) Lusk Center. "Playa Vista in West Los Angeles represents the last major developable area with significan acreage. The shortage of land is leading to urban infill and mixed-use development in many parts of the metropolis. Also, the affordability problem is leading to a wave of condominium conversions...