Design 4 Structures (D4S) is a London-based engineering consultancy that connects design, construction and manufacturing expertise to deliver smarter, more buildable solutions for asset owners, developers, investors, contractors and architects. Our roots in the construction supply chain set us apart from traditional engineering consultancies, giving us a practical understanding of not just how buildings are designed, but how they are procured, manufactured and constructed. By challenging conventional approaches and bringing specialist expertise together from the outset, we help clients unlock development potential, optimise design, reduce delivery risk and create greater certainty from concept through to construction.