An anonymous Elmhurst-based LLC has filed applications for five three-story, multi-family residential buildings at 69-03 through 69-09 Ditmars Boulevard and 21-67 Hazen Street, in the Astoria Heights section of northern Astoria. Four of the buildings will contain three residential units and one will contain two. Across all five structures, the apartments should average 889 square feet apiece. Long Island City-based Carusone & Cherres Architects is the architect of record. The 9,928-square-foot site’s predecessor, demolished earlier this year, was the Augustana Evangelical Lutheran Church.