Thermal image of buildings to demonstrate energy heat loss

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Infra-red thermography is a useful way to find where a building is losing heat © Historic England

Energy Performance Certificates

This page provides guidance on Energy Performance Certificates (EPC) in relation to historic buildings for those who need to obtain a certificate as well as those who carry out the assessment.

An EPC provides a rating so that comparisons on energy performance can be made between different properties. They are generated by a standard form of modelling software which does not always correspond to actual performance. Recent research has shown this can significantly underestimate thermal performance in older buildings.

As such ratings may lead to inappropriate recommendations which could harm the character or risk deterioration of such buildings, Historic England has developed guidance to raise awareness of the issues.

Guidance for homeowners

Energy Efficiency and Historic Buildings: Energy Performance Certificates

Published 14 May 2015

Advice for homeowners and those managing or renting historic or older buildings who may need to commission and EPC or who have received one for an older property that has been purchased or rented.

Learn more

Guidance for assessors

Energy Efficiency and Historic Buildings: Advice for Domestic Energy Assessors and Green Deal Advisors

Published 14 May 2015

Advice for Domestic Energy Assessors and Green Deal Advisors producing EPCs and Green Deal Assessments on historic and older buildings.

Learn more


An EPC is required when a building is built, sold or rented and is valid for ten years.
Listed buildings and buildings in conservation areas have a qualified exemption.
For more details see our page on Consents and Regulations for Energy Improvements to Older Homes.

Further information is also available on the Government page on EPCs.

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