An Energy Performance Certificate (EPC) rates how energy-efficient a dwelling is, usually from A (most efficient) to G. For landlords, minimum standards can affect whether you can let; for buyers, the rating hints at running costs and future upgrade spend.
Why EPCs matter
- Running costs — poorer bands often mean higher heating bills.
- Letting rules — England has minimum EPC standards for most private rentals (check current GOV.UK guidance).
- Negotiation — a weak EPC can justify works or a price discussion.
How to look up an EPC
- Use the free EPC lookup on Untagged.
- Search by postcode and pick the address.
- Review the current rating, potential rating and certificate date where available.
Using EPC data in a deal
If you plan a refurb, fold likely insulation, glazing or heating upgrades into your renovation cost calculator and re-check the numbers in the deal analyzer.