After incorporating, New Square set its own zoning and building codes, legalizing the existing houses, and the liens disappeared. Lots were sold, and new houses were built. The basement businesses could trade openly, and new businesses were founded, including a watch assembly plant and a cap manufacturer. Three knitting mills and a used car lot opened, but most men continued to go to work in New York City. A "Kollel" was opened in 1963. In 1968, Grand Rabbi Yakov Yosef Twersky died; he was succeeded as Grand Rabbi by his son David Twersky.