These two buildings hold significant heritage value, as they are the result of high-quality architectural design and execution. They have retained their original architectural features, including cut stonework, detailed cornice and stringcourse masonry, sculpted lintels, and more.

In addition, they are important witnesses to the development of the former village of Saint-Jean-Baptiste and continue to contribute to the distinguished streetscape of Esplanade Avenue, with its few remaining U-shaped buildings—remnants of the area’s affluent past—forming part of the visual landscape of the Mount Royal historic site.

The current owner acquired both buildings in 1978. In 1996, tenants were required to vacate due to unsanitary conditions. In 2002, the buildings were officially recognized as heritage properties, and the City attempted—unsuccessfully—to purchase them for renovation and resale.

In 2014, a legal dispute began between the owner and the Ministry of Culture and Communications over the demolition of 4413–4423 Esplanade. In 2018, the Superior Court ordered the owner to carry out both demolition and repair work. The Ministry did not grant authorization. In 2019, part of the structure collapsed. The Ministry then authorized demolition but required that the façade be preserved. Each stone was carefully removed, numbered, and stored pending reconstruction in identical form. The neighboring building at 4403–4407 is also in need of restoration.