When do you need a strucutral Engineer vs an Architect for Your Project
Discover when your project needs a structural engineer, an architect, or both. Make informed decisions to ensure safety, efficiency, and successful outcomes.
When Do You Need a Structural Engineer vs an Architect for your project?
Avoid delays, failed inspections, and design missteps by choosing the right professional from day one.
Clarifying the Roles: What Each Professional Brings to the Tablet
The Structural Engineer's Responsibility
I've seen it too many times. A homeowner jumps into a renovation project without understanding who they need on their team, and six months later, they're dealing with failed inspections, unexpected costs, and endless delays.
Let's clear up the confusion between structural engineers and architects. Both are crucial professionals, but they serve very different purposes—and knowing which one you need (or if you need both) can save you a massive headache.
Structural engineers focus on one thing above all else: making sure your building remains stable and safe. They're the safety experts who ensure your home or building is stable and meets all required codes. When you need someone to design and approve load-bearing elements—think beams, foundations, walls, and roof structures—this is your go-to professional.
You'll definitely need a structural engineer any time you're messing with the "bones" of your building. Knocking out a wall? You'll need to determine if it's load-bearing and what needs to be replaced. Adding a second story? Someone needs to make sure your foundation can handle the extra weight. Noticing cracks in your foundation or walls? A structural engineer can tell you if it's a minor cosmetic issue or a serious problem that needs immediate attention.
Many homeowners don't realize that most municipalities won't even approve building permits for these types of changes without stamped drawings from a licensed engineer. It's not just a good idea—it's often legally required.
The Architect's Contribution
While engineers worry about whether your house will stand up, architects focus on how you'll actually live in it. They're the professionals who think about the flow of a space, natural lighting, the perfect proportions, and how your home feels when you're in it.
An architect balances the artistic vision with practical realities. They translate your lifestyle needs and personal preferences into designs while navigating building codes and zoning laws. They're experts at maximizing space efficiency and creating designs that simply work better for how people live.
When you hire an architect, you're not just getting someone who can draw up plans—you're getting a professional who understands how to bring your vision to life while avoiding common design pitfalls.
What's the Difference?
If you're still confused about who does what, here's a simple breakdown:
| Aspect | Structural Engineer | Architect |
|---|---|---|
| Focus | Safety, structural integrity, code compliance | Space design, aesthetic appeal, functionality |
| Tools | Load calculations, technical drawings, structural analysis | Floor plans, 3D modeling, design rendering |
| Typical Projects | Beam sizing, foundation design, retaining walls | Custom homes, room layouts, exterior design |
| Licensing | PE (Professional Engineer) | RA (Registered Architect) |
Situations That Require a Structural Engineer
Based on our experience with hundreds of projects across the country, here are the times when you absolutely need a structural engineer:
You want to remove or change a wall, and you're not sure if it's load-bearing
You've noticed worrying cracks, sloping floors, or doors that suddenly won't close properly
You're planning to add anything heavy to your property, such as a second story or a large hot tub.
The city or county has asked for "stamped" structural drawings for your permit application
You're buying an older property and want to make sure there aren't any hidden structural issues
Don't guess when it comes to structural issues. I've seen minor problems turn into huge expenses because homeowners tried to skip this step. When in doubt, get a proper evaluation.
Request a Structural Evaluation
When an Architect Is the Right First Call
On the flip side, there are projects where an architect should be your first phone call:
You're building a new home or planning a major remodel that changes your living space
You need help navigating zoning restrictions or getting HOA approval for exterior changes
You want a home that truly reflects your taste and lifestyle, not just a standard design
You're struggling to imagine how to make your space work better for your needs
A good architect doesn't just draw pretty pictures; they also create functional designs. They understand how to create spaces that solve problems. I recall a client who struggled to make their awkwardly shaped living room work. Their architect suggested a simple layout change that completely transformed how they used the space, without moving a single wall.
Architects also possess extensive knowledge about materials, finishes, and fixtures that can help you make informed choices, balancing your budget with your aesthetic goals.
Need Both? We Work Seamlessly With Architects
When Your Project Needs Both
For many substantial projects, you'll need both professionals working together:
Major renovations where you're changing both the layout and structural elements
Custom home builds where design and structural integrity must work hand-in-hand
Projects where an architect's plans require engineering validation
Situations where contractors need engineering specifications to implement architectural designs
Most home extensions or significant renovations will require the services of both professionals. Typically, you'll start with an architect who develops the vision, then bring in an engineer to ensure that the vision can be safely constructed. The best results come when these professionals collaborate from an early stage.
Book a Collaborative Design Consult
How Exactus Engineering Simplifies the Process
At Exactus, we've built our reputation on making complex projects simpler for our clients:
We clearly define what services you need, so you're never left wondering who to call next
We provide quick turnaround times on structural drawings and reports
We bring years of experience with local building codes and regional requirements
We've developed strong working relationships with the region's best architects and builders
What really sets us apart is our collaborative approach. We don't work in isolation—we believe in clear communication between all parties involved in your project. This means fewer surprises, smoother processes, and better results.
Our team has specific experience with the unique challenges of regional properties, from heavy snow loads in northern areas to the distinct soil conditions found in different geographical zones. We understand the quirks of older urban homes and the specific requirements for new builds in expanding suburban areas.
For homeowners who aren't sure what they need, we offer straightforward consultations that clarify exactly which services are necessary for your specific project. No upselling, no confusion—just clear guidance to move your project forward.
Start With a Free 15-Min Project Review
Start Your Project With Confidence
I've seen too many homeowners waste thousands of dollars because they started with the wrong professional or skipped critical steps. I've seen homeowners invest significantly in architectural plans, only to discover that their dream addition wasn't structurally feasible without extensive foundation work, which dramatically increased their overall budget.
Don't make the same mistakes. By understanding whether you need an architect, an engineer, or both from the beginning, you can:
Get your project right the first time
Speak directly with experts who understand your specific needs
Avoid the heartbreak of failed inspections and costly rebuilds
Remember that requirements vary significantly by region. What works in one city might not be approved in another. Local building departments often have additional requirements beyond the National Building Code, particularly in areas with extreme weather conditions or specific geographic characteristics.
When choosing professionals for your project, look for those who have established relationships across disciplines. At Exactus, we take pride in the strong network we've built with architects throughout the province. This collaboration means your project transitions smoothly between design and engineering phases.
The right professional guidance doesn't just prevent problems—it often saves you money through efficient design and the avoidance of unnecessary work. Whether you're tackling a simple structural issue or embarking on your dream home project, starting with the right team makes all the difference.