Over the past two or three years, I've noticed what appears to be an abrupt increase in the number of large warehouse/distribution center type buildings being constructed in Tarrant County. I don't get out to other parts of the metroplex much, so I can't figure if this is a local trend I'm seeing or part of a larger metro area/regional trend.
Specifically what I'm talking about are the large tilt-wall type buildings constructed around Alliance airport as well as near the auto and intermodal facilities. To the south along the north Loop 820 corridor there has been significant construction in the Railhead development between Business 287 and FM 156 (four up so far and another one underway) as well as in the area between Haltom Road and I35W. I know some have been purpose built facilities for the tenants, but at least one of them was completed and immediately advertised as available.
So is there actually a marked increase in the number of these facilities or do they replace obsolete structures elsewhere? If there is an increase, what is driving it?