AECB Carbon Lite

Setting the Standard for Low-Energy Buildings

The AECB CarbonLite programme sets a rigorous standard for low-energy building design, providing a clear framework to cut energy demand and carbon emissions. Based on Passivhaus principles but tailored to the UK, it focuses on fabric-first design, airtightness, and efficient building services to deliver genuinely low-energy buildings.

Why It Matters?

At its core, CarbonLite promotes sustainability by addressing the biggest contributors to building emissions — energy consumption and heat loss. By setting clear performance targets for fabric efficiency, airtightness, ventilation, and primary energy use, it ensures buildings deliver predictable, measurable reductions in operational carbon. This approach not only lowers running costs and environmental impact but also enhances occupant comfort, indoor air quality, and resilience against rising energy prices and climate change.

At SDS, we support clients in embedding AECB CarbonLite principles throughout design and delivery. Our services include energy modelling, thermal bridging analysis, ventilation and airtightness strategies, and detailed coordination of building services to meet CarbonLite benchmarks. By combining our technical expertise with practical, buildable solutions, we help projects achieve certification while also delivering long-term value through reduced carbon, lower costs, and improved user wellbeing.

Ready to achieve AECB CarbonLite certification?

SDS helps you meet the AECB CarbonLite standard through practical, coordinated design that achieves real energy savings and certification success.

From airtightness to energy modelling, our experts guide you through every stage of the CarbonLite process. We will help you deliver buildings that perform exactly as designed.