MAK ASSESSORS (OCDEA)

SAP Assessments and EPCs for New Buildings, Conversions and Extensions

What is an EPC?

An Energy Performance Certificate (EPC) is a legally valid document which provides an energy efficiency rating (displayed on an A-G scale) in relation to a property’s running costs.

This rating will take into account the potential energy performance of the property itself (the fabric) and its services (heating, lighting, hot water, etc.).

In addition to this, the EPC document will also show:

✅ A breakdown of a property’s energy performance.

✅ Its environmental impact.

✅ Recommendations for improvements.

✅ Estimated energy use alongside potential savings.

Not all properties are used in the same way.

The energy efficiency rating uses ‘standard occupancy’ assumptions (typically 2 adults and 2 children), which may be very different from the way in which occupiers actually use things like heating and lighting within their property.

When Do I Need An EPC?

An EPC is required in the UK whenever a property is marketed for sale or rent or is newly built. The EPC is valid for 10 years or until a newer EPC is produced for the same property. It is recommended that a property’s EPC should be made available to potential buyers as soon as it is marketed for sale or rent.

Our Services

New Buildings

Extensions

Conversions

SAP assessment of your property, using building drawings and specifications for both before and after construction

SAP 10 Assessment Checklist

To carry out the SAP 10 energy assessment for your new dwellings, we kindly ask you to provide the following information and documents. Please send the latest versions where possible.