What Does EPC Rating D Mean?

Quick answer: an EPC rating D means the property has an energy-efficiency score from 55 to 68. It is a mid-range rating: not one of the strongest bands, but not the poorest either. The important next step is to read the certificate’s property details, potential rating and recommendations.

EPC rating D score range

A D rating can arise for many reasons. One property may have good loft insulation but older heating controls; another may have modern heating but uninsulated solid walls. The same letter does not mean the same improvement plan.

Is EPC D good or bad?

D is best described as mid-range. ONS data for EPC records in the ten years to March 2025 shows the median score in Wales was 68, the top of D, while England’s median was 69, the bottom of C. That illustrates how close the D/C boundary is to the centre of current recorded performance.

Can a landlord rent out a D-rated property?

For covered domestic private rented property in England and Wales, current MEES rules generally require an EPC of E or above unless a valid exemption applies. A D rating is above that present threshold. Government has also decided on a future standard equivalent to C from 1 October 2030, with further legislation and implementation details required.

Should I buy a house with EPC D?

An EPC D should not be an automatic reason to reject a house. Check the exact score, potential rating, recommended measures and the condition of the building. A score of 68 is only one point below C; a score of 55 is much further away. The cost and practicality of improvements can therefore differ significantly even within the same band.

How do I improve D to C?

Start with the property’s own recommendation list and evidence. Common areas to investigate include loft or wall insulation, heating controls, hot-water insulation, lighting, glazing and heating systems, but there is no universal measure that guarantees a band change. The current RdSAP methodology combines many property characteristics, so the points gained from a measure depend on the whole dwelling.

If you are planning several measures—particularly on an older, solid-wall or moisture-sensitive building—consider a whole-house approach rather than selecting upgrades solely for EPC points.

Sources and current guidance

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