The claim of this house, the "Old Mully Place," to be the oldest house in Cedar Falls is based on a statement by local historian Roger Leavitt in his 1928 book, When Cedar Falls was Young. He wrote that the house was "considered" to be the oldest. Like many early buildings in Black Hawk County, the true date of construction is difficult or impossible to verify. Record keeping in those days was less exact than it is today.

The house was probably built around 1860. It was built of brick that has since been covered over with concrete. Mrs. Carl Coffman purchased the house in the late 1940s and converted it into a duplex. An additional basement area and new floor and wall sections were constructed at that time.