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Business Details
24 Years
experience
Your Trusted Structural Engineering Partner in London
Established in 2002, DDA Engineers is a leading structural engineering consultancy based in London. Our team of experienced professionals specialises in delivering innovative, sustainable, and cost-effective structural solutions for a diverse range of projects across the UK and internationally. With expertise in traditional and modern materials, including concrete, steel, ETFE, and glass, we prioritise design efficiency and buildability while addressing complex functional and site-specific challenges. Our commitment to sustainability is demonstrated through our focus on reducing embodied carbon in construction materials and promoting retrofitting and reuse of existing structures. We utilise advanced technologies such as BIM and 3D dynamic building modelling to enhance productivity and ensure clash-free designs. Our proven track record spans sectors including commercial, health, education, transport, and leisure, with notable projects like the Cutty Sark Conservation and Southern Cross Station in Melbourne.

We collaborate closely with architects, contractors, and specialist teams to optimise structural designs, ensuring they align with architectural vision and client requirements. Our dedication to excellence is reflected in our long-standing relationships with industry partners and our role in pioneering sustainable engineering practices. The leadership team, including Director David Dexter and Associate Jo Smith, brings decades of experience and technical expertise to every project. As advocates for innovation and education, we actively participate in STEM initiatives and mentorship programs to nurture future engineering talent.
Services
Concept Design ETFE Structures Tender Engineering Reviews Specialist Engineering Faade Engineering Membrane Structures Void Formed Slabs
Details
  • Year established: 2002
Highlights and features
  • We have over 20 years of experience in structural engineering design and consultancy.
  • Our team includes industry-recognised experts in ETFE and complex structural systems.
  • We utilise BIM and 3D dynamic modelling for clash-free, efficient construction processes.
  • Our sustainability focus reduces embodied carbon through material innovation and retrofitting.
  • We maintain long-standing partnerships with leading architects and contractors globally.
Services
Concept Design
We transform architectural concepts into detailed 3D models using AutoCAD, Revit, and SketchUp. Our visualisations ensure accurate proportions and alignment with client expectations. This process integrates seamlessly with structural analysis for efficient, buildable solutions.
ETFE Structures
Specialist design of ETFE cushion systems for canopies, atria, and large-scale roofs. We collaborate with contractors to develop cost-effective, durable solutions. Projects include Singapore's 43,000m canopy structures and cultural landmarks in Kuwait.
Tender Engineering Reviews
Pre-contract structural assessments to define buildability and cost parameters. We identify potential savings and risks in tender designs for specialist contractors. This ensures accurate pricing and minimises rework during construction.
Membrane Structures
Collaborative design of membrane and cable systems with Tensys. We provide form-finding analysis, detailed component drawings, and construction-phase support. Applications include event pavilions and permanent architectural features.
Void Formed Slabs
Innovative use of plastic hollow spheres in concrete slabs to reduce material usage. This technique lowers foundation loads while maintaining structural integrity. Ideal for multi-storey residential and commercial developments.
People
David Dexter
Director
With 35+ years' experience, David founded DDA Engineers in 2003 after roles at Anthony Hunt Associates and WS Atkins. He specialises in ETFE structures and complex international projects like Southern Cross Station in Melbourne.
Jo Smith
Associate
An 18-year veteran at DDA, Jo specialises in concrete frames and hybrid structures. She led the Kew Gardens Pavilion Restaurant project and contributes to STEM education through school programs and apprenticeship mentoring.
Matteo Copellini
Senior Engineer
Qualified in Italy and the UK, Matteo brings seismic engineering expertise. He has worked on Stonegrove Church, international ETFE malls, and residential developments, combining structural analysis with innovative detailing.
Questions
What sectors does DDA Engineers specialise in?
We work across commercial, residential, transport, education, health, leisure, and cultural sectors with expertise in new-build and renovation projects.
How does DDA Engineers approach sustainability?
We focus on reducing embodied carbon through material innovation, retrofitting existing structures, and specifying low-carbon alternatives to traditional concrete and steel.
What technologies do you use in your designs?
We utilise BIM, 3D dynamic modelling, and software like Revit and AutoCAD to enhance efficiency, coordination, and construction management.
Can you assist with international projects?
Yes, we have delivered projects across six continents, including landmarks in Singapore, Kuwait, Australia, and Italy.
Do you work directly with contractors?
Yes, we provide tender design optimisation and specialist engineering support for steel, concrete, and cladding contractors to improve buildability and cost efficiency.
What is your experience with ETFE structures?
We are global leaders in ETFE cushion systems, with projects ranging from small atria to large-scale canopies exceeding 43,000m².