What are SBEM Calculations? A Simple Guide for Commercial Projects
📍 Introduction
Are you planning a new commercial development or refurbishing an existing non-domestic building? If so, you’ll likely need SBEM Calculations to ensure compliance with Part L of the Building Regulations.
In this guide, we explain what SBEM Calculations are, when they’re needed, and how they help you stay compliant — all in clear, simple language.
🔎 What Is an SBEM Calculation?
SBEM stands for Simplified Building Energy Model. It is a government-approved method that measures the energy performance of commercial and non-domestic buildings. These assessments ensure your building meets Part L requirements related to energy efficiency.
The result of an SBEM Calculation is a BRUKL report, which shows whether your design complies with the regulations. Furthermore, this data is used to create your non-domestic EPC (Energy Performance Certificate).
👉 Learn more about Commercial EPCs here.
🏗️ When Do You Need SBEM Calculations?
You must complete SBEM Calculations at two key stages:
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Design Stage – before construction begins
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As-Built Stage – after construction is complete
SBEM is required for:
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New build commercial projects
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Change of use or conversions (e.g. warehouses to offices)
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Major refurbishments that affect building services
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Extensions with usable areas over 50m²
Without these calculations, Building Control won’t sign off on your project. By completing them early, you can avoid costly delays and last-minute changes.
📌 Need help getting started? Our team at Assessment Hive can guide you every step of the way.
🧾 What Does an SBEM Assessment Include?
An SBEM assessment evaluates how your building uses energy. It includes:
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Heating and cooling performance
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Ventilation systems
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Lighting efficiency
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Hot water demand
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Insulation and thermal performance
Using this information, our assessors prepare:
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A BRUKL compliance report
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Energy performance recommendations
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A final EPC upon completion
👉 For full details, visit our SBEM Calculations Service Page
🛠️ What Do You Need to Provide?
To complete your SBEM Calculation efficiently, we’ll need the following:
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Architectural plans (PDF or DWG format)
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Details of heating, cooling, and ventilation systems
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Glazing specifications and window dimensions
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U-values for floors, walls, and roofs
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Building zoning and usage types
After we receive this information, we can begin your assessment straight away.
👷 Who Needs SBEM Calculations?
Many professionals rely on SBEM Calculations, including:
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Developers working on commercial sites
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Architects submitting plans to Building Control
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Main contractors and builders managing compliance
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Commercial landlords preparing for letting or sale
If your project falls into one of these categories, it’s important to plan ahead. Engaging with an SBEM assessor early will streamline your timeline and reduce risk.
❓ FAQs About SBEM
Is SBEM the same as an EPC?
No. SBEM is the calculation method. The EPC is the final document produced using that data.
Do homes need SBEM?
Not typically. Most residential projects require SAP Calculations instead.
How quickly can you complete SBEM Calculations?
Once we have the required plans and specifications, we aim to deliver your report within 24–48 hours.
🚀 Why Choose Assessment Hive?
Choosing the right energy assessor can save you time and money. At Assessment Hive, we offer:
✅ Transparent pricing from £150 + VAT
✅ Fast 24–48 hour turnaround
✅ Expert support at every stage
✅ UK-wide service coverage
We’ve helped hundreds of commercial projects pass energy assessments without stress or delays.
✅ Final Thoughts
In summary, SBEM Calculations play a critical role in the compliance process for commercial buildings. Not only do they prove energy efficiency, but they also support the issue of your EPC and approval from Building Control.
By working with experienced assessors like Assessment Hive, you can ensure your calculations are accurate, timely, and fully compliant with the latest regulations.
📞 Call us on 020 7183 3240
📧 Email us at [email protected]
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