Excerpt Taken From The Natonal Register Of Historc Places Page
How old does a property have to be to qualify for listing?
Generally, properties eligible for listing in the National Register are at least 50 years old. Properties less than 50 years of age must be exceptionally important to be considered eligible for listing.
www.nps.gov/nr/faq.htm#howold
As listed in the FMLS (First Multiple Listing Service), below is a resource to see the Historic Homes for sale that are built 1963 and older, in the City of Duluth.
Homes For Sale In Duluth Built 1963 and older