These two buildings have great heritage value as the result of high-quality design and craftsmanship. They have retained their original architectural features: dressed stone, the masonry of the cornice and string courses, sculpted lintels, and more.

Moreover, they are important witnesses to the development of the former village of St-Jean-Baptiste and continue to contribute today to the prestigious streetscape of Avenue de l’Esplanade and its few “U”-shaped buildings—testaments to the area’s prosperous past and part of the historic Mont-Royal site panorama.

The current owner purchased the two buildings in 1978. In 1996, tenants were forced to vacate the buildings due to health and safety concerns. In 2002, both buildings were designated heritage properties, and the City unsuccessfully attempted to acquire them for renovation and resale.

In 2014, a legal dispute arose between the owner and the Ministry of Culture and Communications over the demolition of 4413–4423 de l’Esplanade. In 2018, the Superior Court ordered the owner to carry out demolition and repair work. The Ministry of Culture did not grant authorization. In 2019, part of the building partially collapsed. The Ministry then authorized the demolition but required the preservation of the façade. Each stone was removed, numbered, and stored awaiting reconstruction to its original state. The building at 4403–4407 also reportedly requires renovation.

In 2022, the two properties were put up for sale. They were acquired in 2023 by a private company.