Building Regulation UK Part L Compliance (BRUKL)

SBEM (Simplified Building Energy Model) or alternative DSM model calculations are required for all new-built non-domestic buildings with a heated or cooled environment and an internal floor area >50m2 to comply with ​Building Regulations Part L (Conservation of Fuel and Power). ​

SBEM is the government software tool used in the assessment of a building's energy consumption. Results from SBEM are used to produce a ​BRUKL (Building Regulation UK Part L2) report. The calculations will cover all new non-domestic buildings with fixed services (such as heating, cooling, lighting), monthly energy use and carbon dioxide emissions based upon a description of the building's geometry, construction and use.

For new non-domestic buildings, an initial SBEM calculation is carried out at "Design stage" meaning that an Assessor can determine at this point whether the building will (or not) meet minimum Building Regulations.

SBEM calculations assess the overall thermal efficiency of the building fabric and the amount of energy that will be required for the fixed services. SBEM also calculates the level of carbon emissions that the building will generate once complete and operational. The results of the calculations are compared against the corresponding requirements of Building Regulations Approved Document L2A and summarised in a BRUKL Report for submission to Building Control.

From the "Design Stage" of a project through to completion, our expert Assessor will work in partnership with you providing a thoroughly professional and fully supportive service.

Upon completion of the build, we issue an "As Built" BRUKL Report to confirm overall compliance as well as a Non-domestic Energy Performance Certificate (EPC), which is required as part of the sign off procedure for the marketed rental or sale of the property.

Failure to Comply

Failure to comply with Regulations can be extremely damaging both professionally and financially. Your local authority has a general duty to enforce Regulations in its area. Initially they will likely try to resolve the matter in an informal way if possible; if however this does not work, the authority has two formal ways to achieve enforcement as it deems appropriate:

  • 1) If an individual carrying out the building work contravenes Regulations, the authority may prosecute in a Magistrates' Court where an unlimited fine may be imposed (sections 35 and 35A of the Building Act 1984). Prosecution is possible up to two years after completion of the offending work and the action is likely to be taken against the person(s) carrying out the work - builder, installer or main contractor.
  • 2) Alternatively, or possibly in addition, the authority may serve an enforcement notice on the building owner requiring alteration or removal of work, which contravenes the regulations (section 36 of the 1984 Act). If the owner does not comply with the notice the local authority has the power to undertake the work itself and recover the costs of doing so from the owner.

Clearly, therefore, it is preferable to be compliant, particularly as local authority's are generally clamping down on offenders.