Welcome to our commercial knowledge base focused entirely on non-domestic energy compliance and delivering buildings that meet UK regulations efficiently and reliably. Here, you’ll find clear, practical guidance on Part L2 (SBEM calculations and BRUKL outputs), non-domestic EPCs, and the role of thermal modelling in assessing building performance and occupant comfort.
Whether you're working on a new build, refurbishment, or commercial-to-residential conversion, our content is built around real project delivery. We explain how to achieve compliance from early design and planning through to EPC lodgement and final sign-off helping you avoid delays, design revisions, and unexpected costs.
Stay up to date with evolving requirements, including Part L 2021, Minimum Energy Efficiency Standards (MEES), and wider sustainability drivers such as BREEAM New Construction UK. Our insights are tailored for developers, architects, and commercial property professionals looking for straightforward, actionable compliance guidance.
Led collaboratively by organisations including the Better Buildings Partnership, BRE, CIBSE, Institution of Structural Engineers, LETI, RIBA, RICS and the UK Green Building Council, the standard aims to align the industry around a clear, measurable pathway to net zero carbon buildings.
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Key Considerations for Building Owners, Landlords, and Developers
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From 27 January 2026, BREEAM will introduce Version 7, marking one of the most significant updates to the UK’s leading sustainability assessment method in recent years.
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Are EPCs required for listed buildings?
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