Duluth’s ‘Flintstone House,’ once billed as a home of the future, hits the market
- Posted on May 29, 2026
- By Star Tribune
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- 1 min read
Duluth’s ‘Flintstone House,’ once billed as a home of the future, hits the market
The five-bedroom 2,800-square-foot cavelike home, also known as the “Mushroom House,” reflects a brief era when architects experimented with polyurethane foam.
