3400 Virginia Ave Code Violation: digging behind front retaining wall

A caller reports digging behind the front retaining wall at the city-owned vacant lot at 3400 Virginia Ave and is worried because the site sits in the Chickasaw Historic District. The owner is Louisville & Jefferson County Landbank, and the caller asks that the retaining wall and concrete steps by the sidewalk be kept intact—repairs are allowed but removal is not—and the case is currently open for follow-up.