Built circa 1823, this building served two functions that are associated with Fort Wellington. A commissariat for the Fort Wellington Garrison and a Military Hospital for the Royal Canadian Rifle Regiment between 1840 and 1854.

Following its use as a commissariat, after the Battle of the windmill in 1838, the building was renovated for use as a hospital. 

This building complements the Stockade Barracks located at 356 East Street as it has an important link with the military history and medical activities of Prescott and Fort Wellington. 

This vernacular two-storey frame structure, with gable ends facing east and west, rests on a stone foundation. A lower profile gable forms the north wall of a single-storey, early addition to the building. Many of the walls are of original plaster construction. The central hall and rear shed or store room are still evident.

This buildings conventional appearance and use as a family he today disguises its important historic associations with Fort Wellington.