The Chauncey Ellwood House is a 19th-century Italianate residence in the DeKalb County, Illinois city of Sycamore.

The Chauncey Ellwood House is designed in Italianate style, today, painted a distinctive red color.

The house bears a full-length front porch supported by four bracketed wooden columns.

[3] On the front wall of the Chauncey Ellwood House two additional wooden supports are anchored at either end of the porch.

[1] The folklore of the Potawatomi tribe, which inhabited the area, held that the natural pond in the backyard was once a watering hole for native buffalo before the herds moved further west.