Archidep guide
Architect or technologist: how to choose?
Distinct roles and reserved acts
In Quebec, architects and architectural technologists are two regulated professionals with different scopes of practice. The law reserves certain acts to architects, including design and signing of plans for many building types.
- Architect: OAQ member, can sign plans for most building types
- Technologist: OTPQ member, competent for a defined range of projects
- Both are subject to professional and ethical obligations
- The distinction is legal and determined by building type and area
When an architect is required
For certain buildings, the law requires that an architect sign the plans. This includes multi-unit residential buildings, commercial buildings above certain thresholds and any project subject to heritage requirements.
- Residential building with five or more units
- Commercial or institutional building
- Project in a heritage zone requiring architectural review
- Project requiring complex multi-professional coordination
When a technologist may be sufficient
For less complex projects — notably single-family homes or certain extensions — a technologist can prepare the required plans. Building type, area and municipal requirements must be checked before choosing.
Common questions
Can a technologist sign permit plans in Quebec?
Yes, for certain building types. The law defines acts reserved for architects. For a standard single-family home, a technologist can generally prepare and sign the plans required for a municipal permit.
Is there a cost difference between an architect and a technologist?
Generally yes, but not always. Cost depends on the mandate, deliverables and project complexity. Comparing quotes based on included deliverables is more reliable than comparing professional titles alone.
Who coordinates the structural engineer on a project?
Architects generally coordinate professionals on projects requiring multiple contributors. On simpler projects, a technologist can also take this role depending on the agreed arrangement.