Understanding EPC Requirements for Holiday Lets

An Energy Performance Certificate rarely tops the list of things a new holiday let owner thinks about — but it's a legal requirement, it affects how easily you can let a property commercially, and the rules around minimum ratings have real teeth. Here's what actually matters.

What an EPC Covers

An EPC rates a property's energy efficiency from A (most efficient) to G (least efficient), based on things like insulation, heating systems, windows and lighting. It comes with a report suggesting improvements and the likely cost and impact of each one. Certificates are valid for ten years.

Do Holiday Lets Need One?

Yes, in almost all cases. If a property is let out for holiday accommodation on a commercial basis, it needs a valid EPC — the same as any other rented property. The main exemptions are for buildings let for less than four months a year in total, or listed buildings where the required upgrades would unacceptably alter their character. Both exemptions are narrower than owners often assume, so it's worth checking rather than assuming a property qualifies.

The Current Minimum Rating

For most rented properties in England and Wales, the legal minimum is an E rating. Letting a property below that — an F or G — without a valid exemption registered on the PRS Exemptions Register is a compliance breach, not just a formality, and can carry a financial penalty. If you've inherited a property with an old certificate, it's worth checking the rating before assuming it's still fine — ratings and rules have both tightened over the years.

What Happens If You're Below It

If a genuine assessment shows a property below E, you generally need to make cost-effective improvements up to a set spending cap before you can either re-rate it or register a valid exemption. This isn't a box-ticking exercise — it needs a registered domestic energy assessor to produce the new certificate, and any exemption has a limited validity period before it needs reviewing again.

Practical, Affordable Ways to Improve a Rating

A few improvements consistently move the needle without a major renovation:

• Loft and cavity wall insulation — often the single biggest, cheapest win if a property doesn't already have it
• LED lighting throughout — a small cost with a genuine, measurable EPC impact
• Draught-proofing doors and windows — cheap, quick, and noticeably improves the assessment
• A more efficient heating control system — modern thermostats and zoned heating controls can improve a rating without replacing the boiler itself
• Hot water cylinder insulation — a low-cost fix that's easy to overlook

Bigger-ticket items — double glazing, a new boiler, solar panels — obviously help too, but they're rarely necessary just to clear the E-rating bar; most older stone or period cottages in Dorset and the New Forest can get there with the smaller fixes above.

When to Get a New Certificate

If a property doesn't have a current, valid EPC, or you're not sure what its actual rating is, that's the first thing to sort — it's a straightforward booking with a local domestic energy assessor, typically completed in under an hour. It's a small task that removes a genuine legal risk, and it's one of the checks we carry out when onboarding a new property to make sure everything's in order from day one.