From the book Thank You for Being Late by Thomas Friedman.
It wasn’t quite that easy, though, to just move to any suburb. Many of the western suburbs adjacent to Minneapolis were not platted for many starter homes, or had large agricultural tracts or had a legacy of refusing to sell homes to blacks or “Hebrews.” St. Louis Park, though, had been platted for small forty-foot lots since the early part of the twentieth century, explained Jeanne Andersen of the Historical Society. “For some reason, the community’s early developers and factory owners always had a growth mind-set,” she told me. So there was a lot of available housing stock and the real estate developers “were perfectly happy to sell it to Jews,” in contrast to other suburbs at the time, such as Golden Valley or Edina.
I have to admit I fail to understand the use of “plat” here. Does “had been platted for small forty-foot lots” mean that the land/territory there had been divided into small forty-foot lots? And does “were not platted for many starter homes” mean that it was impossible to build there many starter homes becausethere was no space/room to build them?