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This post explains what are Home Energy Model (HEM) Assessments and the key changes between these and the current SAP assessments coming in 2026

Read a genuine 5-star review from a UK builder about our fast, hassle-free SAP calculations and SBEM reports. Trusted compliance support that building inspectors accept — with competitive pricing and excellent service.

Comprehensive Guide to SAP Energy Assessments

When planning a construction or renovation project, understanding energy performance is crucial. How does an Energy Assessor go from receiving your building plans to producing Part L Compliance reports? There are generally two methods, both use an approved software tool called SAP or SBEM (Hence our name Sap2Sbem) In this article, we will explore the essentials of SAP energy modelling, its benefits, and how it differs to SBEM modelling yet both integrate with other assessment

How SAP Assessments Drive Sustainable Building Practices

Energy efficiency and regulation compliance are now critical factors in modern building design and management. With increasing regulations and environmental concerns (that seem to be changing yearly!), the tools that assess and verify energy performance are becoming more essential and authoritative. One of the most widely used tools for assessing the Energy performance and carbon emissions in non-domestic (commercial) buildings in the UK is an SBEM calculation. These calculat

At sap2sbem, accuracy and trust are at the heart of everything we do. We’re proud to share that in our latest independent *Elmhurst audit*, our new build SAP calculation results achieved 0% variance – meaning our work was found to be 100% accurate against Elmhurst’s rigorous quality standards. For our clients, this provides an important reassurance: when you choose us for your SAP Calculations, you can rely on results that are precise, compliant, and fully aligned with Buildi

# Navigating Excessive Glazing Calculations: Your Guide to Compliance A house with an extension that requires an excessive glazing SAP calculation # Understanding Excessive Glazing Calculations So, the dreaded day has arrived. The lovely local building inspector has visited your self-build project and has requested an 'Excessive Glazing Calculation' to comply with Part L of the Building Regulations. Before you start tearing down walls (and tearing out your hair!), don't pani

an approved energy assessor is making detailed notes of a house extension for a SAP assessment

The history of the British Building Regulations and how SAP Calculations and SBEM Calculations became an important part of these

Are you complying? One of the main changes to SAP 10 which is affecting builders and project managers post June 15th, 2022 is the need to take photographs in relation to 'Part L' compliance. To read about it in detail, go to appendix B of the approved document L. I have found so far this has been a surprise to quite a few of my clients. What pictures are needed for compliance? Here is a short list to make sure you don't get caught out on your current new build project: Founda

This post gives lists the key changes from the old commercial part L to the latest regulations in 2026. The post shows how to buy a BRUKL Certificate or SBEM for a commercial building project.

As most of the industry is now aware, from 15th June major changes are implemented as Building Regulations Part L 2022 comes into force. SAP 2012 from this date will be replaced with SAP 10. What are the main changes? How will my project be affected? Pick up a coffee and take 5 mins. to read this post for your SAP 10 quick reference guide. Cost & Carbon Emission Factors for Fuels used in energy assessments: The most stand out change to SAP 10 compared to SAP 2012 has to be co