Last month, two more cities joined a growing list of Southern California municipalities that have said enough to the largest warehouse sprawl in North America, an industrial footprint that Transwestern—who aims to make it larger—estimates at 2.3B SF.

By unanimous vote, the Norco city council enacted a 45-day moratorium on the construction of new industrial real estate projects involving warehouses. Their vote followed a decision by Pomona officials to extend their warehouse moratorium for another 10-and-a-half months.

These are just the latest in a growing NIMBY backlash among towns in the Inland Empire trying to stop the warehouse sprawl that has filled all but a handful of infill sites in the Western half of the two-county region—which encompasses the area between the LA city limits and the Arizona border—from spreading to the Eastern half and northward.