The Charles G. Curtiss Sr. House is a private home at 168 S. Union St. in Plymouth, Michigan in the United States.

[3] Curtiss died only a few years later in 1893, and his wife Caroline continued to live in the house until 1901.

A shed-roof verandah is attached to the front of the house and a single-story hipped-roof addition is in the rear.

[2] The exterior of the house is sheathed in clapboard, patterned shingling, and, beneath the veranda, wood panels.

[2] The house is distinctive because of its decorative elements, including the shingling, turned posts on the verandah, and stickwork under the gables.