Over the years, HNI has successfully advocated for the preservation of many downtown landmarks, including the Ryman Auditorium, Union Station, Hermitage Hotel, Shelby Street Bridge, and the Second Avenue, Printers Alley, Lower Broadway, and East Nashville historic districts.
In 1982, HNI established the state's first Preservation Easement program and currently owns easements on 16 historic landmarks with a market value of over $30 million.
HNI hosts an annual membership meeting, publishes a newsletter, maintains a website, gives special behind-the-scenes tours of local historic landmarks, and recently launched the annual "Nashville Nine" endangered properties list.