SBEM Calculations

Assessing the energy performance of non-residential buildings in the UK

Reviewing your commercial buildings energy performance to ensure Part L compliance

SBEM calculations often require a deep understanding of lighting systems, HVAC details, and regulatory frameworks. Miscommunication between contractors can lead to compliance delays, which you and your teams are likely working hard to avoid – so it’s vital to bring experienced consultants on board who can support the process to completion, not hinder it.

Our team will collaborate directly with your specialist contractors to ensure every system meets Part L and NCM (National Calculation Methodology) requirements. We’ll streamline the process to deliver accurate, timely SBEM calculations without the unnecessary back-and-forth, resulting in better performance, enhanced compliance, and tangible cost savings for your build.

Why do you need this service?

Regulatory
compliance

SBEM calculations are required to ensure your non-residential building meets Part L building regulations, which were introduced in 2006.

Optimised energy efficiency

Investing in accurate calculations provides essential insights into how the building’s performance can be improved, and operational costs can be reduced.

Enhanced performance ratings

Having SBEM calculations to hand will ensure your building meets Minimum Energy Efficiency Standards (MEES) and achieves a higher EPC rating overall.

How does it work?

We’ll collect your building information,

gathering plans, specifications, and system details.

We’ll arrange your initial consultation

to discuss project needs and compliance goals.

We’ll begin your SBEM assessment,

conducting a preliminary evaluation of energy performance.

We’ll carry out Dynamic Simulation Modelling,

performing Level 5 analysis for accurate results.

We’ll review
your results

before identifying improvements and refining our recommendations.

We’ll support you throughout your construction project,

ensuring energy-saving measures can be integrated seamlessly into delivery.
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We’ll issue your
certification,

delivering the final EPC for compliance and operational use.

Why choose Energy Digest?

Unlike many other providers, our energy consultants deliver Level 5 SBEM calculations for all building types, ensuring we can achieve maximum accuracy and optimal EPC ratings for your project through advanced Dynamic Simulation Modelling. This allows us to assess your energy usage and emissions much more comprehensively. 
The attention to detail adhered to by our team will be second to none, and our SBEM calculation service allows for multiple revisions to accommodate your evolving designs. 

All relevant documentation will be supplied for Building Control approval, and we’ll always be on hand to provide integrated compliance solutions and end-to-end support throughout the entire design, construction and certification process.

Fast turnaround time

To help you meet your own deadlines, we’ll ensure your SBEM assessment is issued within 7 days.

Multi-disciplined team

We cover 20+ services in the built environment, with specialists providing high-value calculations and strong advice.

Practical solutions

Our professionals provide recommendations that are calculated to ensure real-world outcomes, resulting in cost-effectiveness and high impact.

Unrivalled support

Our service doesn’t end with the reports. We can provide ongoing support and expertise, from planning to completion.

Speak to our
experts today

FREQUENTLY ASKED QUESTIONS

SBEM Calculations
FAQs

SBEM assessments are needed for all new non-residential buildings, as well as large extensions and conversions. This includes offices, retail spaces, warehouses, and public buildings.

Factors like insulation, lighting, HVAC systems, and renewable technologies influence SBEM scores. Better systems result in higher scores, indicating improved energy efficiency.

A notional building is a standardised model used as a benchmark for energy performance. Proposed designs must meet or exceed the efficiency of this baseline to pass SBEM requirements.

Level 5 SBEM assessments evaluate complex buildings with features like atriums or extensive glazing. Energy Digest uses Level 5 modelling for all projects to ensure the most accurate results and superior EPC ratings.

Why use Level 5 assessments for your SBEM calculation?

Most buildings use Level 4 SBEM assessments for Part L compliance. However, complex designs benefit from Level 5 assessments using Dynamic Simulation Modelling (DSM), offering advanced features like:
 
• Hourly weather data for 72,900% more precise analysis.
• Detailed orientation modelling with 1° accuracy.
• Enhanced geometry modelling for intricate designs.
• Advanced glazing and shading analysis for improved daylight and solar efficiency.
• Thermal mass and inter-zone heat transfer analysis.
 
Level 5 assessments deliver unparalleled accuracy, optimising compliance and efficiency for buildings with complex energy systems and sustainability goals.

Spoke with Josh who not only reassured me but asked for a fee that I thought was fair. Thank you Josh. Use again? Definitely.

Steve Quirk

The team really know their stuff – super helpful and always had clear answers to any questions or compliance issues we ran into. Definitely our go-to for any future projects!

Nathan Donnelly

Quick and well priced water calculation service and received an appliance specification report alongside the certificate which was really useful for us and the building control officer, highly recommended!

Ilma Akhtar

Very knowledgeable about building regulations, and the industry. Always goes the extra mile to help out! 5*

Karim Meraga

Still unsure?

We offer free phone call and email support until you’re ready to proceed with us.
Access free support for your project now.

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