Constructed in 1940 as the Murphy Real Estate office, this Arts and Crafts style building was one of a cluster on State Street designed by prominent local architect Richard Sundeleaf, and its half-timbered architecture was intended to suggest an English village. Between 1912 and 1955, the Murphy Real Estate Company oversaw the transformation of Oswego from a depressed iron company town to an affluent lakeside retreat. In 1940, the company moved its office from Tenth and A to this building, which continued to serve as a real estate office after changing ownership. In 1976 it was sold to Helen R. Millette and Associates, realtors, and in 1980 to William and Elizabeth Headlee, real estate developers. The Headlees added two dormers to the second floor for their offices and remodeled the first floor to accommodate the Chamber of Commerce office and other businesses. They later received the Chamber of Commerce's Bob Bigelow Lifetime Achievement Award in 2001, and one of their contributions to the community was the campaign to purchase and restore the original Murphy Real Estate Building at Tenth and A, converting it to the Oswego Heritage House, center for the Oswego Heritage Council.