“Do I Need a Structural Engineer or an Architect?”
When planning a building project in Kent, London, or the surrounding counties, one of the first questions many homeowners and developers ask is: do I need a structural engineer, an architect – or both? It’s a common point of confusion, and with good reason: both play vital roles in construction, but they focus on very different aspects of your project. Understanding their responsibilities will help you make the right choice, avoid delays, and keep your project on budget.
The Role of an Architect
An architect is primarily concerned with design, space, and aesthetics. They will help you translate your ideas into a workable design, making sure your home not only looks the way you want it to but also meets planning rules. If you’re considering a loft conversion, rear extension, or even a new build, an architect will draw up the detailed plans and help guide you through the planning permission process.
Think of the architect as the “creative lead” of your project—they focus on layouts, light, proportions, and how the finished space will feel and function.
The Role of a Structural Engineer
A structural engineer, on the other hand, is focused on safety and stability. We make sure your building can actually be built as designed and that it will remain safe for decades to come. This means carrying out calculations, specifying materials, and ensuring the structure complies with Building Regulations. All of which we have plenty of experience with and regularly coordinate with the local council on your project.
For example, you’ll need a structural engineer if:
You’re removing a load-bearing wall in your London home.
You’re adding a two-storey extension in Kent.
You’re converting a loft in Surrey and need steel beams (RSJs) designed.
You’ve spotted cracks in walls and want to know if foundations need underpinning.
In short, architects design the vision, and structural engineers make it possible—and safe.
Do You Need Both?
For larger projects, such as new builds or major extensions, the answer is usually yes. An architect provides the creative and regulatory design, while a structural engineer ensures the design can stand up safely.
For smaller projects, you may only need one. If your work involves changing the structure—such as opening up rooms, adding extra floors, or strengthening foundations—you’ll almost certainly need a structural engineer. If it’s purely about layout, space, and appearance, an architect may be enough.
Finally, if you’re unsure where to start, think about your project goals. For design and aesthetics, an architect is the right first step. For safety, calculations, and building control approval, speak to a structural engineer in Kent, London, or the surrounding counties. Many homeowners find that using both professionals gives the best results, and our team is always happy to guide you in the right direction. Give us a call or email us with any drawings, plans or mock-ups you already have and we’re happy to give you a free consultation.