SAP Calculations in London and Nationwide

If you’re building, converting, or extending a property and need SAP Calculations in London or anywhere in the UK, Assessment Hive is here to help.

Our qualified and accredited assessors provide fast, accurate SAP reports, ensuring your project fully complies with current Building Regulations.

At Assessment Hive, we specialise in SAP Calculations, excellent customer service, and saving you money.  As a result, you’ll receive your SAP reports quickly, hassle-free, and exactly when you need them.

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❓ What Are SAP Calculations?

SAP stands for Standard Assessment Procedure.  It is the government-approved method for assessing the energy performance and carbon emissions of residential buildings.

You’ll need SAP Calculations for:

• New build dwellings

• Conversions (for example, converting a barn into a home)

• Extensions with large areas of glazing

• Some refurbishments where thermal elements are altered

SAP Calculations confirm that your project complies with Part L of the Building Regulations, which focuses on energy efficiency and conservation.  In addition, an Energy Performance Certificate (EPC) is issued once the project is completed.

 Read our full guide: SAPs for New Builds

 Read our full guide: SAPs for Extensions

 Read our full guide: SAPs for Conversions

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🏠 When Are SAP Calculations Needed?

SAP Calculations are required for several key reasons:

• Demonstrating compliance with Approved Document L (Fuel and Power) when you extend, build or convert a property or properties.

• Generating official reports, including BREL Reports, SAP Compliance Reports, and EPCs

• Identifying energy use to help reduce running costs

• Calculating emissions for Energy and Sustainability Statements

 Read our full guide: When are SAP Calculations Required

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📝 What Is the SAP Process?

The SAP process can seem complex however, we make it simple and handle everything for you.

The SAP process typically includes:

• Design-stage SAP assessment to confirm Part L compliance

• Energy modelling of insulation, heating, ventilation, and renewables

• SAP Compliance, BREL & Predicted EPC Reports for Building Control

• As-built SAP Compliance Reports and SAP Energy Performance Certificate following construction

🔗 Read our full guide: SAP Calculations Process – New Builds

🔗 Read our full guide: SAP Calculations Process – Conversions

🔗 Read our full guide: SAP Calculations Process – Extensions

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🛠️ How to Prepare for SAP Calculations

Preparing the right information in advance helps us complete your SAP Calculations quickly, accurately, and without delays.

To get started, we typically require:

• Architectural drawings, including floor plans and elevations

• Construction specifications, such as insulation levels and build-ups

• Heating and hot water system details

• Ventilation strategy, including MVHR where applicable

• Renewable technologies (if included), such as solar PV

If available, sharing previous SAP reports or planning documents can also help streamline the process.

By providing this information upfront, we can avoid revisions, keep your project on schedule, and ensure Part L compliance.

🔗 Read our full guide: How to Prepare for SAP Calculations

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💷 How Much Do SAP Calculations Cost?

Costs vary depending on the number of units and the complexity of the new build. Prices typically start from a few hundred pounds but may increase based on project specifications.

Our fees start from just £49 + VAT, depending on project size and complexity.

 Read our full guide: How Much Do SAP Calculations Cost?

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⭐ Why Choose Assessment Hive?

• Fully accredited energy assessors, ranked highly for quality and reliability

• Fast turnaround, with reports delivered in 2–5 working days

• Clear, competitive pricing with no hidden fees

• End-to-end service, from design stage to as-built certification

More over, we also provide SBEM Calculations and Overheating Assessments, so you can access all the compliance services you need in one place.

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🚀 Ready to Get Started?

If you need SAP Energy Performance Certificates in Hertfordshire, Kent, Essex, London, or anywhere else in the UK, Assessment Hive is ready to assist.

• ⚡ Fast turnaround

• 💷 Competitive pricing

• 🌍 Remote, nationwide service