Planning a new build or renovation? Then you've probably heard of SAP Calculations — but what exactly are they, and why do they matter?
Whether you’re a homeowner, developer, or architect, SAP Calculations are a must for Building Regulations compliance. At EPS Group, we break it down in plain English and help you get it right the first time.
What Are SAP Calculations?
SAP stands for Standard Assessment Procedure. It’s the UK government's method of measuring a building’s energy performance.
In simple terms, SAP Calculations tell you — and Building Control — how energy-efficient your home is.
They are required for all new dwellings and major conversions, and are used to produce the EPC (Energy Performance Certificate).
What Do SAP Calculations Measure?
SAP Calculations look at several key factors, including:
Insulation levels
Heating systems
Hot water use
Window glazing
Renewable energy (like solar panels)
Airtightness (via an Air Pressure Test)
All of these combine to give your home a SAP rating — and you’ll need to hit a minimum score to pass regulations.
Why Are SAP Calculations Important?
✅ Legal requirement under Building Regulations Part L
✅ Ensures energy efficiency — lower bills, reduced emissions
✅ Supports planning and design decisions early on
✅ Needed for EPCs before you can sell or let your property
At EPS Group, we provide accurate, fast, and fully compliant SAP reports so you can keep your project on track.
When Do You Need SAP Calculations?
You’ll need SAP Calculations twice during your build:
Design Stage SAP – submitted before work begins, to show that your design can meet energy targets.
As-Built SAP – done after construction, reflecting the final materials, systems, and results (including your Air Pressure Test).
Without these, you can’t get your final EPC or completion certificate.
EPS Group: The SAP Experts You Can Trust
At EPS Group, we’re known for making the complex simple. We’re one of the UK’s most trusted building compliance partners because we offer:
✔ Quick turnaround times
✔ Clear, jargon-free reports
✔ Personal guidance on improvements
✔ Competitive pricing
✔ Full compliance packages (including SBEM Calculations, Overheating Risk, and Air Testing)
When you choose EPS Group, you’re not just ticking boxes — you’re getting support from real experts who care about your project’s success.
SAP, SBEM, Air Tests & More — All in One Place
Not sure whether you need SAP or SBEM Calculations? Here's a simple rule:
SAP = Domestic buildings (houses, flats, conversions)
SBEM = Commercial buildings (offices, schools, retail units)
EPS Group does both — along with Air Pressure Testing and Overheating Risk Assessments — so you get everything you need from one reliable team.
Avoid Costly Mistakes
The earlier you get SAP Calculations, the better. Waiting too long can lead to design issues, delays, or even failing compliance checks.
Let EPS Group help from the start. We’ll guide you through each step, so you never feel overwhelmed or lost.
Ready to Get Started?
If you’re planning a new build, extension, or conversion, don’t leave your SAP Calculations to chance.
Contact EPS Group today for expert advice, fast turnaround, and full support. We’re the best in the business — and we’re ready to help your project succeed.
