What to read first in a BRUKL report
Begin with identification. Confirm that the report covers the correct unit, development phase and building use. A landlord's shell and a tenant's fitted space can be described by the same site address while representing different specifications. If the area or scope looks unfamiliar, resolve that before asking whether the building passes.
Our SBEM calculations service can help establish the assessment scope and arrange the calculation work. Send the entire report, including its identifying pages, rather than a screenshot of the results. Add the latest plans and explain whether your question concerns an early option, a design submission or the completed installation.
The comparison with the notional building forms part of the approach in Approved Document L, Volume 2. It is a standardised assessment framework, not a promise that the building's future utility bills will match the calculation. Actual use, operating hours and facilities management can differ from the model's assumptions.
How BRUKL report checks relate to supporting information
Use the report as an index into the design evidence. Each question below helps turn a result into a request that the appropriate member of the project team can answer.
| Report issue | Evidence to check | Useful question |
|---|---|---|
| Geometry and scope | Current plans, sections and assessment boundary | Does the model include the whole intended assessment area and the right exposed surfaces? |
| Fabric performance | Build-up calculations and window schedules | Do the input values describe the selected assemblies rather than an earlier option? |
| Building services | Plant schedules and control descriptions | Which rooms does each system serve, and do the quoted efficiencies match the selected equipment? |
| Lighting | Luminaire data, layouts and control strategy | Has the assessment used the proposed installation rather than an outline allowance? |
| Completed-building inputs | Test records, commissioning information and substitution register | Which assumptions remain provisional, and who will supply the missing evidence? |
Responding to a BRUKL report that shows a problem
Ask the assessor to separate missing evidence from poor performance. A conservative input may reflect an unconfirmed product rather than the intended design. Finding the correct datasheet could resolve that uncertainty. Where the actual proposal performs poorly, however, changing the description without changing the building creates a misleading record.
Discuss alternatives with the relevant designer. A different lighting layout may affect the electrical design; a new heating proposal may change space requirements or electrical demand. Request an option comparison that identifies exactly which inputs change. Record the option selected and circulate it to procurement and site teams before it becomes a new report revision.
The energy targets and limiting standards described in Approved Document L, Volume 2 are separate parts of the assessment. An improvement in one area should not be treated as automatic permission to ignore another check. Ask for the remaining issues to be listed explicitly, including matters outside the energy model that need separate evidence.
BRUKL report versions during shell and fit-out work
For shell and fit-out projects, write down what has been designed and what remains unknown. The Approved Document L, Volume 2 guidance includes an approach for shell and core buildings. The assessor needs a defensible basis for services assumptions; an unfinished tenancy should not quietly inherit a completed fit-out specification from another unit.
Keep a report register showing the issue, purpose and superseded version. Explain why a revision was made, such as a changed roof assembly or a revised services selection. This is particularly useful where separate consultants send information at different times and the contractor is working from a coordinated issue that differs from an individual designer's latest draft.
The when are SBEM calculations required guide helps distinguish project triggers from report interpretation. For assessment method questions, use SAP vs SBEM. Owners managing occupied premises can also use our facilities manager support to discuss the information held in existing building records.
Handing over the final BRUKL report
Give the person reviewing the submission a short document schedule. Identify the final BRUKL report, the specification it represents and supporting records supplied separately. Keep unresolved queries visible. A folder containing numerous reports with similar names is difficult to review, especially when the most recent attachment is not the version that describes the completed work.
A commercial EPC serves a different purpose from the compliance report. The GOV.UK commercial EPC guidance explains certification requirements; do not rename an EPC as a BRUKL report or assume either file replaces the other. If you need a report reviewed or updated, send the current issue and a clear list of changes through our SBEM calculations service.

