Southern California is short 51,000 homes, by this math

Southern California’s housing construction runs one-quarter slower than required to keep up with population growth, by one accounting.
I filled my trusty spreadsheet with apartment tracker RentHop’s compilation of population growth and housing permits from 2010 to 2016. It tells me that builders in the four-county region filed permits for 205,959 residential units in the period while the population grew by 770,829.
All that construction translates to new Southern California housing t