Built in 1910 by renowned architects Eager & Hunt, the F.D. Lewis Mansion is a rare and significant piece of California history. Located in the highly desirable Mount Rubidoux Historic District, this approximately 6000 sq. ft. architectural gem combines innovative engineering with timeless design. As the first earthquake retrofitted home in California, this 6 bedroom, 2 bath Mission/Italianate style residence was constructed with reinforced concrete and steel columns, showcasing its exceptional craftsmanship. Original features include quartersawn oak floors, a Batchelder tile fireplace, and a full size finished concrete basement, all of which add to its historic charm and potential. Lovingly held by the same family for three generations, this property is on the market for the first time in 60 years. A true diamond in the rough, it is a fixer upper in need of restoration but offers strong bones and architectural integrity for those ready to bring it back to life. The homes prime location is walking distance to Fairmount Park, Mount Rubidoux, and all the exciting dining, shopping, and entertainment options of Downtown Riverside. As a contributing property in the Mount Rubidoux Historic District, it is also eligible for the Mills Act, providing an incredible opportunity for property tax savings as part of its restoration. Schedule your private tour today and reimagine the possibilities of this unique piece of Riverside history!