EPC Rating D: What It Means for Your Home

What does an EPC D rating mean?

A rating of D covers scores of 55 to 68 points on the SAP scale, which is the method used to score a home’s energy efficiency. A home rated D wastes more energy than a C-rated home. That usually shows up as higher heating bills and a house that is slow to warm up.

Can I get a grant with an EPC rating D?

It depends on whether you own or rent.

• Homeowners: a D rating can qualify for ECO4, if you also meet the benefit rules or are referred by your council through LA Flex. Upgrades under ECO4 for a D-rated home should lift it to at least a C.
• Private tenants: ECO4 for private rented homes starts at E. A rating of D does not qualify.

ECO4 is due to close on 31 December 2026, so if you think you qualify it is worth checking soon.

What usually moves a D to a C?

Every home is different, so a survey tells you for certain. These are common starting points:

• Loft insulation, one of the quickest and simplest upgrades
• A modern, efficient heating system
• Solar panels, which cut the amount of electricity you take from the grid

What to do next

Press "Check if I qualify" and we will tell you whether a grant could apply. We will also arrange a free home survey so you know exactly what would lift your home to a C.