It is a squat, two-storey log cabin with low ceilings, designed to retain the heat from the fire in winter close to its occupants. It is said that John Graves Simcoe, who was over tall, had to stoop in order to enter the building. The building as it now stands is little changed from its original construction. Apparently an additional extension that would have appeared to the south of the building was not moved. The second cabin constructed next to it by the York Pioneers was built using wood that was too green, and it was demolished a few years after construction. Over the years some of the timbers have been replaced, and the cabin was remounted on a stone foundation in the late part of the 20th century. Inside the cabin are furnishings appropriate to a house in Upper Canada in the 1830s, and some known to have belonged to Simcoe.