Industrial vacancy rates remain tightest in port markets struggling to keep pace with increasing demand, with Los Angeles, Orange County and New Jersey all showing rates at or below 3.6% in August.

And just to the east of those coastal California markets, the booming Inland Empire posted the lowest rate of all major metros surveyed by Commercial Edge at a staggering 1.2%. The IE is looking to relieve that pressure, according to Commercial Edge, with an additional 22 million square feet under construction, the third largest volume nationally. 

Around 130 million square feet of new industrial space has come online in the first half of this year, with another 447 million under construction. Around 53 million square feet entered the pipeline this summer, for a total of 500 million square feet currently under development.  Dallas-Fort Worth leads in terms of new supply, with 34.1 million square feet under construction, followed by Phoenix and the Inland Empire.