Certificates (EPCs) give information on how to make your home more energy
efficient and reduce your energy costs. All homes bought, sold or rented
require an EPC.
Energy Performance Certificates – what they tell you
- information on your home's energy use and typical energy costs
- a recommendation report with suggestions to reduce energy use and save
- details of the person who carried out the EPC assessment
- who to contact if you want to make a complaint
Energy use and potential savings
EPCs carry ratings that compare the current energy efficiency and estimated
costs of energy use with potential figures that your home could achieve.
Potential figures are calculated by estimating what the energy efficiency and
energy costs could be if energy saving measures were put in place.
The rating measures the energy efficiency of your home using a grade from
‘A’ to ‘G’. An ‘A’ rating is the most efficient, while ‘G’ is the least
efficient. The average efficiency grade to date is 'D'. All homes are measured
using the same calculations, so you can compare the energy efficiency of
The recommendation report
EPCs also provide a detailed recommendation report showing how you could
reduce the amount of energy you use and your carbon dioxide emissions. The
- suggested improvements, like fitting loft insulation
- possible cost savings per year, if the improvements are made
- how the recommendations would change the energy efficiency rating of the
- which improvements may be eligible for funding through the Green Deal
(for more information, see ‘The Green Deal’ section further down this page)
You don’t have to act on the recommendations in the recommendation report.
However, if you decide to do so, it could make your property more attractive
for sale or rent by making it more energy efficient.
How long is an EPC valid for
An EPC is valid for ten years
You should receive an EPC when you enquire about buying or renting a home.
You’ll need to provide one if you are selling or letting your home. An EPC is
valid for ten years.
The Green Deal
The Green Deal launches in October 2012. It may be able to help you make the
property you live in warmer, more energy efficient and cheaper to run, without
having to pay for the work upfront.
You choose which eligible energy saving improvements you want to make to your
home. You then pay for the improvements over time through your electricity bill,
at a level no greater than the estimated savings to energy bills.
If you move home, the Green Deal charge stays with the property and the
repayments pass to the new bill payer.
Which buildings need an EPC
An EPC is required when a building is built, rented or sold.
A building is defined as a structure with a roof and walls which uses energy
to ‘condition an indoor climate’. This means it has heating, air conditioning or
The building can either be a whole building or part of a building that has
been designed or altered to be used separately. If a building is made up of
separate units, each with its own heating system, each unit will need an EPC.
For more details of when and which types of buildings require an EPC, read
‘Improving the energy efficiency of our buildings’.
You can apply whether you’re a tenant or an owner and you might be eligible
for extra help if your household gets income-related benefits.
For more information, see the Department of Energy and Climate Change (DECC)
Which buildings don’t need an EPC
The following buildings don’t need an EPC when they are built, rented or
- places of worship
- temporary buildings that will be used for less than two years
- standalone buildings with total useful floor area of less than 50 square
metres that aren’t used to provide living accommodation for a single household
- industrial sites, workshops and non-residential agricultural buildings
that don't use a lot of energy
- holiday accommodation that's rented out for less than 4 months a year or
is let under a licence to occupy
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