John and Mary Mattson House

The John and Mary Mattson House, at 239 E. Main St. in Sandy, Utah, was built in c. 1910. It was listed on the National Register of Historic Places in 1996.

According to its NRHP nomination, the house is significant for its association with the mining, smelting, and small farm period of 1871–1910 in Sandy. It is "among the best preserved examples" of a central-block-with-projecting-bays type of house that was fairly commonly built in Sandy, and its "Victorian Eclectic detailing is expressive of the level of craftsmanship attained locally."