elementalLONDON is a major UK-built environment event dedicated to advancing the efficiency, sustainability and performance of commercial, industrial and large-scale residential buildings. Taking place on 25–26 November 2026 at ExCeL London, the event brings together more than 25,000 construction and building services professionals, alongside hundreds of exhibitors and expert speakers, to explore the technologies, policies and strategies shaping the journey to net zero.
Co-located with London Build and incorporating CIBSE’s Build2Perform Live, elementalLONDON provides a comprehensive platform for engineers, developers, architects, contractors and policymakers to connect, share insights and evaluate solutions across energy systems, HVAC, water and building performance.
With a strong focus on decarbonisation, regulatory change and real-world implementation, the event plays a pivotal role in helping industry stakeholders navigate the challenges of reducing energy use and carbon emissions while delivering efficient, future-ready infrastructure at scale.