The thresholds of the Quebec Architects Act
A project can be drawn without an architect if, once the work is finished, the building has at most two storeys and a basement, and its area is within the limit for its type:
- Detached single-family house
- under 600 m²
- Semi-detached house, row house, building of 4 units or fewer, commercial, business or industrial
- under 300 m²
A three-storey house
Since the regulation of February 15, 2024, a single-family house of up to three storeys and under 600 m² can have its plans signed by a professional technologist (T.P.).
Who signs what at Atelier FlorA
When the project or the municipality requires it, the plans are signed and sealed by the professional technologist we work with. Structural calculations are entrusted to engineers. For larger projects, we work with a partner architect.
How to check for your project
The thresholds depend on the type of building, the number of storeys and the area after the work. If in doubt, describe your project to us: we validate the requirements with you before drawing, and with your municipality.