Structural Engineer vs Architect: What's the Difference?

Quick Answer

Structural Engineer vs Architect

Architects design buildings — their form, function, and occupant experience. Structural engineers design the structural systems that make those buildings stand safely. On most commercial projects, both are required and work together. The architect coordinates the project and produces the overall building design; the structural engineer provides the structural drawings, calculations, and professional engineering stamp for the structural systems.

What an Architect Does

Designs the building program — space planning, circulation, aesthetics
Produces architectural drawings — floor plans, elevations, sections, details
Coordinates with all engineering consultants
Manages code compliance for occupancy, accessibility, egress, and life safety
Leads the permit application in most jurisdictions
Provides architecture professional stamp on architectural sheets

What a Structural Engineer Does

Designs the structural system — framing, foundations, connections
Produces structural drawings and engineering calculations
Provides the professional engineering stamp for structural drawings
Evaluates existing structures for proposed modifications
Coordinates with MEP for rooftop equipment, penetrations, and loads
Responds to structural plan check comments from the building department

When Both Are Required

Most commercial permits require both architectural and structural drawings
New construction, additions, and significant renovations typically need both
The architect and structural engineer work as a coordinated team
Some simple structural scopes may be permitted without an architect — consult your AHJ

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