Here’s a look inside the construction fence at 44-51 Purves Street, one of many development sites on the short Long Island City block. This site will someday be a 22-story, 121-unit residential tower, according to Department of Building documents. The DOB issued this permit for structural, foundation, excavation and shoring work in late November. This lot is next door to another development site with plans for a 28-story, 158-unit tower. Both parcels sold this summer for $32,200,000.