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Building Services and Sustainability Consultants


© Copyright CHBS 2006 to 2020

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SBEM, the Simplified Building Energy Model, is the official

UK tool for calculating the predicted carbon dioxide

emissions due to heating, cooling, lighting, ventilating

and providing hot water to new non-domestic buildings.


Building Regulations Approved Document Part L2A

requires SBEM calculations to be performed on new

non-domestic buildings to demonstrate that the

building carbon dioxide emission rate (BER) is less than

the target emission rate (TER), which is  based on the

proposed building with a notional specification.


SBEM can also be used to demonstrate compliance with

Building Regulations Approved Document Part L2B for

extensions and refurbishments to existing non-domestic



Following the 2013 uplift in Part L Building Regulations it is even more important to use an experienced SBEM assessors to ensure that the proposed building fabric and building services specification are the most efficient solutions to demonstrate compliance against Building Regulations.


Building Control require a submission of SBEM calculations at both the design stage and on completion in order for the building to be signed off by the Building Control Officer.


CHB Sustainability have experienced and accredited SBEM assessors knowledgable in low energy construction and able to provide detailed advice on: Orientation and Layout; U-Values; Construction Details; Fabric Air Permeability; Building Services; and Renewable Energy.


Our experience of BREEAM and low carbon design means that we are well placed to provide detailed guidance to minimise carbon dioxide emissions far beyond the minimum Part L requirements in order to achieve BREEAM ratings of Excellent or Outstanding.


Elms BMW Mini Motor Showroom - Design Stage SBEM for BREEAM Very Good

Consultants for a sustainable built environment