SBEM Calculations & BRUKL Reports

Professional SBEM Calculations for Part L2A & L2B Compliance

We provide fully compliant SBEM (Simplified Building Energy Model) calculations and BRUKL compliance reports for non-domestic buildings across the UK.
Our modelling ensures new commercial buildings, extensions, and refurbishments meet Building Regulations Part L requirements for energy efficiency, CO₂ emissions, and fabric/ services performance.

Our reports are accepted by Building Control, planning departments, BRE, and all major warranty providers.

Whether you’re an architect, developer, M&E consultant, or contractor, we deliver accurate and fast SBEM assessments from concept through to final completion.

 
What Is an SBEM Calculation?
SBEM is the government-approved methodology for assessing the energy performance of commercial and public buildings.
It evaluates CO₂ emissions, energy use and fabric performance based on:

Building geometry
U-values, glazing, airtightness
HVAC systems
Lighting & controls
Renewable technology (PV, heat pumps, solar thermal)
Thermal bridging
Ventilation systems
SBEM is required for:

New non-domestic buildings (Part L2A)
Existing buildings and major renovations (Part L2B)
Commercial EPCs
BRUKL Building Regulations submissions
 
What Is a BRUKL Report?
The BRUKL (Building Regulations UK Part L) report is the official document demonstrating that a building complies with Part L of the Building Regulations.

Our BRUKL reports include:

TER vs BER comparison (Target vs Building Emission Rate)
Compliance with Notional Building Specification
Fabric and services summary
HVAC system details
Lighting loads & efficiency
Energy and carbon summary
Recommendations to achieve compliance (if needed)
A compliant BRUKL output is required before construction and again at as-built stage.

 
Part L Building Regulations Requirements (L2A & L2B)
Our SBEM model ensures compliance with:

Part L2A – New Commercial Buildings
We assess:

Building Emission Rate (BER)
Target Emission Rate (TER)
Limiting U-values
Minimum HVAC efficiency
Thermal bridging
Air permeability requirements
Renewable energy contribution
Metering requirements
Part L2B – Existing Buildings & Extensions
We provide calculations for:

Change-of-use
Extensions & refurbishments
Fit-outs needing compliance
Component-level checks for fabrics, services & lighting
 
Council Requirements for SBEM / BRUKL
Many councils require energy performance documents at planning stage or before discharge of conditions.

Local authority expectations often include:

Part L2A SBEM model with BRUKL
Demonstration of minimum CO₂ reductions
Energy strategy for planning submissions
Evidence of low-carbon technologies (PV, heat pumps)
Compliance with local sustainability policies (e.g., London Plan)
We provide planner-ready documents for all UK councils.

 
BRE & CIBSE Requirements
Our modelling aligns with:

BRE Standards
BRE SBEM methodology
NCM modelling rules (Non-Domestic Building Services Compliance Guide)
BRE-approved software (iSBEM, DesignBuilder, Elmhurst, Etc.)
BRUKL output structure and XML compliance
CIBSE Guidance
We follow CIBSE recommendations for:

HVAC system modelling
Lighting efficiency & controls (CIBSE LG standards)
Building fabric & thermal modelling principles
Weather data and operational profiles (TM46 / TM54 where relevant)
 
What Our SBEM / BRUKL Package Includes
✔ Full SBEM model (Design or As-Built)
✔ BRUKL summary and detailed compliance report
✔ TER vs BER comparison
✔ U-value, HVAC, lighting & ventilation specification
✔ CO₂ reduction analysis
✔ Renewable energy modelling (PV, heat pump, CHP)
✔ Recommendations if non-compliant
✔ EPC (non-domestic) available if required
✔ Planning energy statement (optional)

 
Types of Buildings We Cover
We provide SBEM calculations for:

Offices
Warehouses
Retail units & shopping centres
Industrial units
Restaurants, cafés, takeaways
Schools & universities
Healthcare facilities
Hotels & leisure buildings
Community & public buildings
From small fit-outs to large new commercial developments.

 
Why Choose Us?
Fast turnaround – urgent same-day available
Approved software (BRE compliant)
Reports accepted by all councils and building control teams
Affordable pricing for all building sizes
Clear guidance if improvements are required
Experienced engineers & energy assessors
We support your project from design to completion.

 
What We Need to Begin
Simply send us:

Floor plans, elevations & sections
Construction build-ups
Window/door schedule
HVAC specifications
Lighting details
Air permeability assumptions
If information is missing — we can estimate and refine later.

 
Get an SBEM Calculation & BRUKL Report Today
Need a fast, accurate SBEM assessment for planning or building control?

Contact us today for a quote or send your drawings to begin.

SBEM Calculations & BRUKL Reports | Part L Compliance

Part L SBEM Calculations – BRUKL Compliance Report
Commercial SBEM Assessment – Building Regs Part L
SBEM & BRUKL Report for Building Control
Part L2A SBEM Calculation for Non-Domestic Buildings
 

SBEM Calculations and BRUKL Reports for Part L compliance. Fast assessments for commercial buildings. Fully BRE, CIBSE, and Building Control compliant.

Professional SBEM calculations for new commercial buildings. Part L BRUKL reports accepted by councils and Approved Inspectors.
Part L2A SBEM assessments using accredited software. BRUKL reports for planning, building control, and energy compliance.
Fast, accurate SBEM calculations for warehouses, offices, retail, and industrial buildings. Fully compliant with BRE and CIBSE guidance.