SAP Calculations

Our highly experienced and fully accredited SAP Assessors provide SAP Calculations with unrivalled customer support and technical knowledge.

We specialise in providing cost-effective and practical solutions for demonstrating compliance with Part L1 of the Building Regulations (or regional equivalant).

Don’t let compliance obligations hold you back!

New Build SAP Calculations

SAP Assessments and On Construction Energy Performance Certificates for new build residential developments.

Conversion SAP Calculations

SAP Assessments and On Construction Energy Performance for residential conversion projects.

Extension SAP Calculations

SAP Assessments (Heatloss Calculations) for highly glazed domestic extensions.

SAP Assessments by EPS Group

At EPS Group, we are interested in forming ongoing partnerships with property professionals and self-builders by offering unrivalled customer support and technical consultation, which can be relied upon.

As part of this commitment, our SAP Calculation service includes all required advice and recommendations to ensure that your project passes with the appropriate Building Regulations in a practical and cost-effective manner.

For more information relating to SAP Calculations, please explore the Frequently Asked Questions below.

Alternatively, to discuss your specific project in greater detail, or to obtain a FREE quotation please give us a call on 0115 7270599, email us at info@epsgroup.co.uk, or complete our enquiry form.

What are SAP Calculations?

SAP is an acronym for ‘Standard Assessment Procedure’, which is the UK’s government approved methodology for calculating the energy efficiency of all types of domestic property.

SAP Assessments are a specific requirement of Part L1 of the Building Regulations in England and Wales (and other related localised build standards elsewhere within the UK) for all newly constructed and newly converted residential properties. They may also be required for highly glazed residential extensions.

New Build SAP Calculations

Part L1A Building Regulation SAP Assessments and consultancy for new build residential projects.

Conversion SAP Calculations

Part L1B Building Regulation SAP Assessments and consultancy for residential conversion projects.

Extension SAP Calculations

Part L1B Heatloss Assessments (Design Flexibility SAP Calculations) for highly glazed residential extensions.

SAP Calculations FAQs

SAP Calculations Explained

Each SAP Calculation assesses how much energy a dwelling will consume over the course of a year for the provision of heating, hot water, lighting and ventilation based on standardised occupancy patterns and internal temperature settings. This enables ‘like for like’ comparisons to made between the SAP ratings of different dwellings.
SAP Calculations also determine the level of annual CO2 emissions that will arise from a property known as the Dwelling Emission Rate (DER) as well as the Dwelling Fabric Energy Efficiency (DFEE) rate (England only). In new build applications, these calculated figures must be less than a notional Target Emission Rate (TER) and Target Fabric Energy Efficiency (TFEE) rate to comply with Part L1A of the Building Regulation (or similar standards).
The SAP rating is also used to generate an On Construction Energy Performance Certificates for all new dwellings.

When should I complete my SAP Calculations?

In all instances, SAP Calculations should ideally be completed in conjunction with the detailed design process once internal layouts are confirmed and a provisional or outline build specification is available.
Completing the SAP Assessment early makes any potential specification changes that may be recommended by the SAP Assessor easier to accommodate (as oppose to discovering an issue later in the construction process).
It is also worth noting that Design Stage SAP Calculations and Compliance Summaries are ordinarily required by the appointed BCB prior building works commencing on site.
Once the building works are complete, the design stage SAP Assessment is ideally updated by the original SAP Assessor to a final ‘As Built’ calculation. The final SAP calculation is also used to also produce an On Construction Energy Performance Certificate (EPC).

What factors determine the overall SAP Rating?

SAP Calculations consider a range of different factors to predict the annual energy consumption of a dwelling and its associated CO2 emissions, including the following:

  • The location and orientation of the property
  • The thermal efficiency and construction form of the external build fabric
  • The thermal efficiency of windows and external doors
  • The effects of thermal bridging
  • The efficiency and fuel type of the heating and hot water systems
  • The efficiency and type of ventilation system(s)
    Internal lighting
  • Solar gains from glazed openings
  • The level of air permeability (as determined by an air tightness test)
  • The installation of renewable technologies

Who can complete an SAP Calculation?

In order to avoid duplication costs, SAP calculations should ideally be completed by a qualified and accredited On Construction Energy Assessor, as these individuals are the only professionals that are permitted to issue an On Construction Energy Performance Certificates upon completion of the build.
In all instances, we would advocate employing a SAP Assessor who is widely experienced with all versions of SAP and the various iterations of Building Regulations as inadequate or outdated advice can result in unnecessary increases in build costs.

How much do SAP Calculations cost?

Our SAP calculation fees vary dependent on the overall size, complexity and number of dwellings within a development.
Our highly completive SAP Assessment fees include the following:

  • All U-value calculations
  • All required consultancy and advice needed to achieve overall Building Regulation compliance
  • FREE Predicted Energy Assessments (PEAs)
  • A FREE On Construction Energy
  • Performance Certificate(s) with each As-Built SAP Calculation
  • All relevant lodgement fees.

If you would like to receive a fixed price quotation for a SAP Calculation, please email us a copy of the plans for your development to info@epsgroup.co.uk. Alternatively, please complete our enquiry form.

How can EPS Group help with SAP Calculations?

There are many reasons to appoint EPS Group to provide your SAP Calculations

How can EPS Group help with SAP Calculations?

At EPS Group, we are interested in forming ongoing partnerships with property professionals and self-builders by offering unrivalled customer support and technical consultation, which can be relied upon.
As part of this commitment, our SAP Calculation service includes all required advice and recommendations to ensure that your project passes with the appropriate Building Regulations in a practical and cost-effective manner.

Don’t let compliance obligations hold you back! Our Energy Consultants and certified Assessors have the experience to understand your challenges, and the expertise to meet them on your behalf.

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Highly Experienced

EPS Group have been providing energy consultancy and testing services since 2007. Our three directors have more than 40 years of combined industry experience ensuring that your project is in safe hands.

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Competitive Pricing

We provide transparent, competitive, all-inclusive fixed fees with significant discounts available for developments with multiple units.

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Expedited Service Available

We appreciate that developments move fast. If you require energy calculations or pressure testing urgently, give us a call and we will try our best to help.

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One Stop Solution

From planning to completion we provide an extensive range of complementary services which helps to simplfiy our client’s compliance obligations.

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Independent Advice

We only provide energy compliance services. With no materials to sell or commissions to earn, you can be confident that we will aim to provide you with the most economic and feasible solutions to achieving compliance.

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Fully Accredited Team

Our Energy Consultants and Technicians are all fully accredited across a range of disciplines. You can therefore rely on the advice and services that they provide.

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Client Focused

We tailor our services around you and your bespoke requirements. This is not an industry where a one-size fits all approach should be used.

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Ongoing Technical Support

Plans and specification change. We are therefore available to provide technical support throughout the duration of a build in order to prevent any regulatory problems arising at completion.

EPS Group: A Partner for those in the Construction Industry

We value the importance of a solid working relationship with those in the construction industry, and for many, we serve as the reliable go-to-company to entrust from the planning stage of a development through to completion.

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