SBEM Calculations

SBEM Calculations are now required on all ‘non dwellings’ new builds. At Hilsdon Holmes we bring a wealth of experience to producing SBEM Calculations to meet Part L2 requirements.

What are SBEM Calculations?

The Simplified Building Energy Model (SBEM) is a methodology, government approved, whereby the energy used in heating, ventilating and lighting a building over a 12 month period is calculated, taking into consideration its use under ‘normal’ circumstances.

SBEM is an integral requirement for demonstrating compliance with the Building Regulations, and all new buildings require this calculation before permission to build can be granted.

A SBEM Calculation is used for commercial buildings compliance for Part L (England & Wales), Part F (Northern Ireland) and Section 6 (Scotland).

What is Included in the SBEM Calculation?

The following factors are taken into consideration as part of the SBEM Calculation:

  • The specific u-value for walls, roofs, floors and windows
  • The efficiency of heating, hot water and ventilation systems
  • All factors affecting energy consumption.

What is the SBEM Process?

The SBEM Calculation has two stages:

  1. Design – this is required for permission to be granted to build
  2. As Built – this is required in order to achieve a completion certificate and EPC issue.

Why use Hilsdon Holmes for your SBEM Calculations?

  • We use specifically designed software tools to check energy, carbon, lighting, and comfort performance in your build.
  • We utilise building simulation which enables us to compare the performance and function of building designs – increasing efficiency and delivering projects on time.
  • We have a team of skilled and experienced assessors who can help you to achieve that all important ‘Pass’. Whilst retaining design flexibility in your planning.
  • If you are planning any conversions, extensions or change-of-use projects, you may also need an SBEM Calculation – we can help you with that, too.


Do you need SBEM calculations for a BREEAM Assessment? We can take care of the whole process including the full assessment itself.

Using SBEM modelling we can help our clients to secure credits for issues such as energy, thermal comfort, and daylighting.

Need to discuss SBEM Calculations? Just give us a call on 01579 382202 or send us your enquiry - we’ll get straight back to you.

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