Built by James Irwin, a prosperous Prescott lumber merchant who was the Mayor of Prescott six times in the late 1860's and 1870's. This house is a good example of Italianate style popular during that time period. 

James Irwin during his time as mayor was responsible for imposing Old Town Hall that stood on King Street, which was completed in 1874 during his last term as mayor. 

The James Irwin house is a fine example of the Italianate style town house. There is a large square tower on the south-east corner of the house with three semi-circular windows on each side offering a magnificent view over the river and the town. All the windows in the house are round headed. The main window on the façade of the building is a three-sash with mullion window, each sash having a semi-circular head. Its overall effect is gracious and imposing.