When it comes to SBEM calculations, we get a lot of enquiries as to how much they cost. As you might have guessed, this figure will vary depending on the type of project and the individual requirements of the project.

The purpose of this article is to give you a general idea of cost to help best prepare you for your budgeting before embarking upon your building process.

Why Do You Need A SBEM Calculation?

SBEM calculations are needed in order to comply with Building Regulations Part L2. If you are building, refurbishing, or extending any commercial premises over 50m2, your Building Control Body will request a calculation.

The SBEM calculation then produces a BRUKL Report, showing an energy efficiency rating for your building. In order for your building to pass the Building Regulations Part L2, your SBEM report certificate should show:

  • A Building Emission Rate (BER) lower than the Target Emission Rate (TER)

‘As Design’ Stage

We offer SBEM calculations during both stages of the construction process. During the design stage, we carry out a SBEM calculation prior to the construction work being carried out.

This shows that the building meets the Target Emission Rate (TER) for efficiency.

A SBEM calculation at this stage would cost anything in the region of £350-£5,000 depending on the size of the development.

‘As Built’ Stage

Once works have been completed (the ‘as built’ stage), we will carry out another SBEM calculation.

The ‘as built’ SBEM calculation should be reflective of the calculation carried out during the ‘as design’ stage.

We aim to provide a detailed and comprehensive ‘as design’ SBEM calculation so that your work can be signed off by Building Control in a smooth and efficient manner.

A SBEM calculation at this stage would cost anything in the region of £350-£5,000 depending on the size of the development.

‘As Design’, ‘As Build’, Or Both?

We recommend that you get your SBEM completed as early as possible. We would suggest that you involve your assessor as part of the Design team in order to identify any shortfalls before they become a problem.  

In an ideal world, it would be great to stay with you throughout the process so that we can complete the SBEM calculations at both stages of the build. However, we understand that certain factors don’t allow for this.

For example, you might sell the building(s) before works have been completed. In this instance, it would be up to the new owner to organise a SBEM calculation. This may be months or even years down the line.

We recognise that there is a need for flexibility and our core aim is to assist and support in the smooth running of your building project.

What Are You Paying For?

Essentially, you are paying for our expertise, resources and time. We’re highly skilled in the latest, government-approved energy assessment software and a large part of our work involves careful and strategic use of this software.

Factors Affecting Cost Of A SBEM Calculation

One of the main reasons that we suggest working closely alongside the design team is to avoid any factors that could affect the cost of a SBEM calculation.

Major changes in design may require another SBEM calculation to be carried out, which could take up more time and resources on our part.


The subject of costing is quite a difficult issue to address. The size and individual requirements of a project will inevitably differ greatly.

Commercial and residential projects also have their differences regarding size and requirements. Our Cole Gardens project will have different cost implications for a much larger project, for example.  

With that being said, we hope that this post will give you a general guide to how much SBEM calculations cost in the commercial sector, and any unexpected costs that may affect the overall price of the calculation.

If you would like a more detailed quote for your SBEM calculation or would like to talk to one of our experts, fill out the form below.

About Us

We are a friendly team of Engineers delivering Sustainability and Building Compliance Solutions for developments in the Commercial and Residential sectors, which include Energy Statements, Noise Impact and Vibration Assessments, BREEAM Assessments, and Air Quality Assessments in the Environmental, Social and Governance sectors.

Contact us at:

Sustain Quality Ltd

PO Box 393


KT11 3EL


01372 438039