MONTREAL — The historic Montreal City Hall, an architectural gem since its completion in 1878, has undergone a meticulous restoration that is both a tribute to its original design and a leap forward in modern, green building practices. The project, led by Beaupré Michaud et Associés, Architectes and MU Architecture, is a shining example of how preserving historic buildings can harmonize with cutting-edge environmental standards.

The restoration focused on more than just aesthetics; it addressed the building’s outdated systems, which were no match for the city's climate. Drafty walls and inefficient air conditioning made for an uncomfortable work environment. By returning to the original plans of architect Louis Parent, a vision emerged to restore the building's thoughtful layout and meticulous use of natural light.

The project brought to light forgotten features, such as the grand Hall of Honor and the new Salon de la Francophonie, a space now bathed in natural light from five arched windows that had been hidden for decades. Partitions and false ceilings were removed, allowing the building to breathe and reconnecting it with its original, open design. This careful deconstruction also uncovered beautiful wood-framed, glass-paneled office partitions. These were faithfully reproduced, with missing elements carved by hand to match the originals. The entire wooden assembly, including the coffered wood paneling, was carefully restored, bringing back the intricate craftsmanship of a bygone era.

The most remarkable feat of the restoration is the preservation of 169 white oak double-hung windows dating back to 1925. These weren't simply replaced; they were painstakingly dismantled, repaired, and restored. This monumental effort, which included a six-month prototyping phase by the l’Établi workshop, was crucial to the building's historical integrity. Sashes, pulleys, and counterweights were meticulously reassembled. The frames and mouldings were restored with the utmost care, while new weatherproofing methods and glazing were tested to ensure optimal performance. The result is a perfect blend of historic preservation and modern energy efficiency.

Throughout the project, wood was a central character. The building’s beautiful textures and colors, from striped marble to intricate wood paneling, were all meticulously restored. In the Council Chamber, the original walnut desks were dismantled and reassembled into new ergonomic, universally accessible tables. Protocol lounges and executive offices were reconstructed with beautiful white oak paneling.

The restoration was not just about fixing what was broken — It was about honoring the materials that gave the building its character. The new pavilion on the terrace, for example, features a beautiful composition of granite and white oak volumes, blending seamlessly with the historic structure. Even the famous Balcon du Discours — from which General de Gaulle delivered his historic speech — is now accessible through a massive, restored wooden door.