L.S. Ayres Annex Warehouse, also known as Elliott's Block Nos. 14-22, is a historic warehouse building located at Indianapolis, Indiana. It was built in 1875 by the L.S. Ayres department store, and is a three-story, rectangular Italianate style brick building with an elaborate cast iron first story storefront. Other decorative elements are in stone, brick, and sheet metal. It measures 72 feet, 6 inches, wide and 49 feet, 6 inches, deep. It features Corinthian order columns as part of the cast iron facade.
It was listed on the National Register of Historic Places in 1973.