Harrington House was built in 1830 by Freeport merchant Enoch Harrington for his bride, Eliza, and was once part of a 14-acre parcel with extensive gardens and orchards across the street and behind the carriage barn. Constructed with locally made brick and local granite in a transitional Greek Revival style, it features a wooden fan over the main entrance that harkens back to the earlier Federal style. Enoch Harrington died in 1848, and for a period in the 1880s his widow Eliza rented the house. Lydia and Isaac Fogg owned the property in the late 1800s and rented several rooms to boarders. For over five decades in the twentieth century, state legislator Levi Patterson and his wife Nettie lived there and rented some of the second-floor and attic rooms to shoe factory workers. Miss Helen Randall, a local artist who died in 1976, was the last individual owner, and the Freeport Historical Society acquired the property in 1977 through the generosity of Eleanor H. Smith. In 1988, the society carried out an extensive restoration of the house and its significant historic features. It retains most of its original interior design and finishes and stands as a reminder of a quieter time on Freeport's Main Street.