Discover the history of the National Register of
Historic Place Redstone Lofts in Duluth, MN.
Established in 1892 by Oliver G. Traphagen, complete restoration completed in 2019.
Redstone Mansion
1892 - 1919
1892
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Built as two family home
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Romanesque revival redstone
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Designed, built and home of Oliver G. Traphagen
1896
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Traphagen moved to Hawaii
1897 - 1908
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Chester Congdon lived in home with family until the Glensheen Mansion was built
Redstone Mansion
1919 - 1986
1919
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Converted by Congdon family estate into nine unit apartment building
1919 - 1935
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The house remained in Congdon family
1935 - 1972
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Passed through numerous owners
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Duluth real estate entrepreneur Ben Overman added apartments to Twin Ports rental properties
Redstone Mansion
1986 - 2017
1986
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Howard Klatzky purchases apartment building of business
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Used as residential and commercial space for HTK marketing communications
2014
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HTK relocates to new location in Canal Park, Duluth, MN
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Fire damages building
2015 - 2017
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Redstone Mansion is restored and converted to 11 modern luxury lofts