Structural Engineers in Southampton

SWJ are a Structural Engineering Consultants based in Witney Oxfordshire with developing operations in Southampton.

SWJ has worked with domestic and commercial clients on many projects close to the south coast including  Eastleigh, Portsmouth and Hythe.

Commercial Clients

We have vast experience working across all sectors including education, motor dealerships, listed buildings, high-rise mixed-use and housing developments to name a few.

SWJ are proven to add value to client’s projects with their value engineering experience and thorough approach to design, which often involves investigating the assumed to find a solution that can significantly enhance a client’s bid. Read an example here.  We aim to deliver the most efficient design for every project. The team is very experienced in finding and testing efficient solutions and working under pressure from contractors in the design and build environment.

Domestic Clients

If you have a property in Southampton or the surrounding area and are planning a complex extension, like a basement, or a swimming pool then it is never too early to speak to a structural engineer to see what is feasible. Similarly, if you’re planning a new build, or the restoration of a listed building or barn conversion it is a good idea to consult a structural engineer early on in the process.

One way we add value to our residential clients is by helping them understand that a large percentage of the costs of a new build or an extension is in the ground, in the foundations. Getting this right and finding a suitable solution can save significant amounts of time and budget.

Structural Engineers, like ourselves,  are vital when it comes to understanding whether you can have the extension, annex, basement or swimming pool you desire. We can complete a feasibility study for your project before you spend money on architects, other consultants, and planning applications – saving you money and heartache in the long run; saving you from falling in love with an expensive architect’s design that is not feasible to build.

About SWJ Consulting

Our main office is in Witney, Oxfordshire – so are conveniently placed to serve our clients in the south of England and are in the process of establishing an office in Southampton to better serve our existing clients in that area.

If you are looking for Structural Engineers that can add value to your bids, or that you will feel confident working with on a residential project then contact us today. We have the experience and expertise to help with any project, whatever stage you are at, even if you need remedial work, or are looking for value engineering advice.

Call us today to discuss your project on 02381 920656 or email


Call us today to discuss your project on 01993 225085

Large residential project

We were asked to design an extension with 62 additional self-contained apartments for this extra-care facility in Bishopsworth. The extension included a semi-basement and is an example of how we work in cooperation with other contractors, to anticipate and avoid any issues on site.

Basements for Homes

This basement was designed originally to hold a turn-table for cars. Having been brought onto the project for a second opinion, we were able to alter the plans to provide a better solution that reduced the budget and delivered a large enough basement for the client’s vehicles, without a turntable.

Structural engineering projects

The stunning Aston Martin showroom is an award-winning project we completed in Bristol. This was a specialist high-end project that had to radiate luxury to match the standards of the Aston Martin clientele. It is a testament to our abilities as a team to design and deliver where there is zero margin for error.

SWJ Consulting Aston Martin showroom