Quick answer: EPC bands E, F and G are the lower end of the domestic energy-efficiency scale. F and G are particularly important for covered private rented homes in England and Wales because the current MEES rules generally prohibit letting below E unless a valid exemption applies. For owner-occupied homes, a low band signals greater potential for improvement but is not a condition survey.

Which scores are in the lower bands?

BandScoreBroad interpretationA92+Highest energy-efficiency bandB81–91Very strong energy performanceC69–80Good performance for much of the existing stockD55–68Mid-range performanceE39–54Lower performance; important current rental thresholdF21–38Poor performanceG1–20Lowest energy-efficiency band

Is EPC E poor?

E is a lower rating at 39–54. Under current England and Wales MEES rules, E is the minimum band for many covered private rented properties unless an exemption applies. That does not make E “good” performance; it simply distinguishes the current legal threshold from broader energy-efficiency quality.

What do F and G mean?

F covers 21–38 and G covers 1–20. These are the weakest bands on the current scale. A low rating can be associated with limited insulation, inefficient heating, older construction or other factors, but you need the certificate detail to know why a particular property scored poorly.

Does a poor EPC mean the house is in bad condition?

No. EPC and condition are different questions. A well-maintained period home can have a low energy rating, while a poorly maintained newer home can have a higher EPC. A building survey examines condition; the EPC examines standardised energy performance.

What should I do with a low rating?

Read the exact score and recommendations, verify the property details and gather evidence of any improvements that may not be reflected. Then prioritise measures based on suitability, cost, disruption, moisture/ventilation risk and your objectives. Major retrofit should be planned as a system.

What is changing for landlords?

The government has decided to introduce a future private-rented standard equivalent to C with a single compliance date of 1 October 2030, alongside revised metrics and exemptions. It has also said legislation and a statutory instrument are required. Landlords should therefore distinguish current legal duties from the future framework and check current government guidance as implementation progresses.

Sources and current guidance

This guide is written for practical property decisions and uses current official guidance. Useful sources include GOV.UK MEES guidance, Government 2030 PRS response, GOV.UK EPC guidance. Rules and methodologies can change, so check the current source before relying on a legal or compliance point.

Frequently asked questions

What EPC rating is poor?

E, F and G are the lower-performing bands. F and G are the weakest and are below the current E minimum for many covered private rentals in England and Wales.

Is EPC E bad?

E is a lower energy-efficiency rating. It currently meets the minimum band for many covered rentals, but it still indicates room for improvement.

Can I sell a house with a poor EPC?

A low EPC does not in itself prevent a normal sale, but a valid certificate is generally required when marketing a dwelling unless an exemption applies.

Does a low EPC mean structural problems?

No. An EPC is an energy assessment, not a structural or condition survey.

What should I improve first on a low-rated home?

Use the certificate recommendations as a starting point, then consider suitability, evidence, building condition, ventilation and moisture before major work.

Need property-specific help?

General guidance cannot account for every building or legal situation. If you need an assessment, send the property details for a quote. For legal compliance, check the current official guidance that applies to the property’s nation and circumstances.