(Wall Street Journal) — The residential landscape of South Jamaica, Queens, was transformed during the last decade as developers swapped many of the neighborhood’s traditional, free-standing homes with larger, multifamily housing units. A plan to rezone 530 blocks in the working-class neighborhood could stop that from happening again. “We have areas where they came in and demolished the entire block,” said Yvonne Reddick, district manager with the local community board. “That should not have been allowed to happen.” The plan would push new multifamily housing developments out to the major thoroughfares. On many of the side streets, only single- or two-family homes would be allowed.