One of the first and most important questions that comes up on almost every project, usually right at the start, is “Do I speak to an architect first, or hire a structural engineer?”
Most people assume the architect is the automatic starting line. In reality, it depends on what you’re trying to do and how much of your home you’re planning to change.
Why Architectural Drawings Aren’t Enough for Structural Changes
On paper, a lot of residential work looks simple. A wall comes out, a kitchen opens up, a loft becomes usable space. But once you start looking at the structure behind it, things tend to shift.
In places like Radlett, Bushey, Harrow, and Watford, we rarely come across houses that are completely untouched. There’s usually a history, such as previous extensions, partial alterations, or changes made years ago, with very little documentation.
So, relying on drawings alone can be misleading.
You might have a beautiful architectural layout, but it doesn’t always account for how the building behaves under its own weight.
When Should You Hire a Structural Engineer for Your Project?
It usually makes the most sense to hire a structural engineer before the designs are fully locked in, rather than at the very end.
You may think it will slow things down, but in reality, it avoids painful redesigns later that could actually elongate the process much more.
We’re often brought into projects after plans have already been drawn up, only to find that a proposed opening needs a different beam arrangement, or that existing foundations won’t comfortably support the new loads.
At that stage, changes are still possible, but they’re more disruptive. In fact, they’re sometimes more expensive than they needed to be.
Beyond design, there is a legal requirement: Building Regulations approval is mandatory for structural changes. A structural engineer provides the essential calculations and specifications required by Building Control to certify your home as safe and stable.
So, when you hire a structural engineer, your design is built on what is legally and physically possible from the start, preventing costly backtracking later.
How Structural Engineers and Architects Work Together
None of this makes the architect any less important, far from it.
If you’re still working out layout, flow, or how you want the space to feel, an architect is the right place to start. They shape the project.
But once the design begins to involve structural change, and most do, it needs to be tested properly, so to hire a structural engineer is the way to go.
That’s where the two roles overlap.
On the projects that run smoothly, there’s usually some level of coordination early on. It’s never a strict sequence, but a conversation between design and structure before anything is finalised.
A Practical Way to Decide Who to Call First
Is your project focused on layout, flow, or aesthetics? Start with an architect!
Does your project involve removing walls, adding load, or changing how the building stands? You need to hire a structural engineer, then!
If you’re not quite sure where to start, it’s worth having a quick chat early on. Call us on 01923 866 716 to get a clear steer on your project. We work across:
Borehamwood | Brookmans Park | Bushey | Chipping Barnet | Colney Heath | Cuffley | Enfield | Garston | Goffs Oak| Harrow | Hatfield | Mill Hill | Pinner | Potters Bar | Radlett | Ruislip | Shenley | Stanmore | Waltham Cross | Watford | Wembley