The Léopold Roy House is recognized for its architecture and its importance in the community. It has a Boomtown-style façade, seen as a representation of the economic boom in the late 19th century to the early 20th century. Both Boomtown architecture and the accompanying economic growth of the era are associated with the construction of the Intercolonial Railway.
 
The Léopold Roy House is also notable for its several uses over the years, having almost a dozen unique purposes. From 1927 to 1933, the building was inhabited by Donat and Amanda Roy. Their son, Léopold Roy, lived in the house from 1933 to 2001. Additionally, the building served a variety of other functions. From 1927 until 1950, the building operated as a general store. It also served a centre for the manufacture and sale of ceramic items and a nuclear shelter.
 
It was notably the site of many "firsts" - it was the first professional photography lab and the first driver examination centre in Saint-Quentin, and was additionally the first provincial tax collection office. The Léopold Roy House was furthermore the first N.B. Provincial Court premises, the first manpower centre, and the first military equipment storehouse for the cadet corps. In the present, the building acts a museum, fitting of its extensive history.