SAP Calculations

What are SAP Calculations?

Standard assessment procedure (SAP) is the UK methodology for calculating the energy performance of new dwellings being created. Under building regulations, all newly created dwellings including conversions and, in some cases, extensions will require SAP calculations to be carried out by a SAP engineer.

SAP calculations are carried out through a set of drawings and specifications of the dwelling with no site visit required.

SAP score is measured from 1-100 with a higher value denoting higher energy efficiency. The calculations are done at this stage of the project so that the predicted energy efficiency of the development can be compared with the standards set out in regulations. Without achieving the required standard for energy efficiency, properties can not be let or marketed for sale.

Efficient

Whether you are an architect, project manager or builder we help get your project moving

Ease

We advise you on the easiest and most cost effective way to improve the energy efficiency of your project

Experienced

Our expert SAP engineers ensure you satisfy part L of building regulations

What requires a SAP assessment?

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Extensions

Extensions with a floor-to-ceiling glass ratio of more than 25%

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Barns

Conversion of barns

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Commercial

Conversion of commercial to domestic

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Transformation

Transformation of single residence into flats

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Frequently Asked Questions

Who can produce an EPC??

Only accredited Domestic Energy Assessors (DEAs) or Non-Domestic Energy Assessors (NDEAs) can produce EPCs for residential or commercial properties, respectively. They are trained and certified to assess the energy performance of buildings and produce accurate EPCs.

How long is an EPC valid for?

An EPC is valid for 10 years. After this period, a new EPC will be required if you are selling or renting out the property.

What information does an EPC contain, and how can it benefit me?

An EPC contains details about the building’s energy efficiency features, such as its heating system, insulation, and lighting. It also includes recommendations on how to improve energy efficiency and save money on energy bills.

Are Energy Performance Certificates (EPCs) a legal requirement?

Yes, in many countries, including the UK, it is a legal requirement to have an EPC when selling or renting out a property. The EPC must be obtained before the property is marketed.