Built at a cost of $2,851,076.00 (equivalent to $54,622,444 in 2023), Barott endeavored to design a modern building which would, at the same time, fit with the square's historic surroundings.

The building's setbacks at the 8th, 13th, and 16th floors allow more light on the square and create a cathedral-like massing, reflecting the adjacent Notre-Dame Basilica.

[6] Barott was able to take advantage of a 1929 clause in the bylaw that allowed buildings on public squares to exceed the then maximum height by up to 200 feet (61 m), if certain restrictions were adhered to.

Surrounding the doors and covering the walls and floors of the entrance lobby are a variety of marbles, including Belgian Black, Yellow Sienna, Tinos Greek, St. Genevieve Golden Vein, Verde Antique, and Moutonelle.

Numerous services in the Aldred Building identify it as a modern structure, including conditioned ventilation in the basement and first nine floors, with fresh air 'washed' and filtered in an air-cleaner.