EPC Exemption Guide for Welsh Landlords

Do I need an EPC to rent out my house in Wales?

Yes. Every rental property in Wales needs a valid Energy Performance Certificate before it's marketed to let, and the property must meet the legal minimum energy efficiency rating for the certificate to count. If your EPC rating falls below that minimum, you generally can't let the property unless you've registered a valid exemption.

You must give the EPC to prospective contract-holders (tenants) and include the current rating in any property advertisement. Search the government's EPC Register to check what's already on file for your property, and get a fresh assessment from an accredited domestic energy assessor if you don't have a current one.

What EPC rating do I need to rent in Wales?

The current legal minimum is Band E. This has applied to privately rented property in Wales since 1 April 2020 under the Minimum Energy Efficiency Standards (MEES, SI 2015/962). If your property is rated F or G, you can't legally let it unless a valid exemption is registered.

Rent Smart Wales's own guidance confirms this is still the current standard: rental property should have an EPC of E or above, and anything below that is treated as failing to meet the minimum.

The UK Government has also announced a further tightening, to Band C, from 1 October 2030 — but this is policy, not law. As at 10 July 2026, the amending regulations that would actually bring the 2030 change into force have not yet been made, so nothing changes for landlords today. The announced policy proposes a cost cap of up to £10,000 per property for the improvements needed to reach Band C, with a 10-year exemption available if a property is still below Band C after that spend — but both of those only start to apply once the regulations are made, not before.

Feature	Today	From 1 October 2030 (announced, not yet law)
Minimum EPC rating	Band E	Band C (proposed)
Legal status	In force since 1 April 2020	Policy announced; amending regulations not yet made (as at 10/07/2026)
Penalty for letting below the minimum	Up to £5,000 total per property (tiered — see below)	Not yet set

What exemptions exist and how long do they last?

If your property doesn't meet Band E, you don't necessarily have to bring it up to standard before you can let it. Six exemption types are available for domestic rented property, each with its own qualifying test, evidence requirement and duration — and every one of them only takes effect once it's registered on the PRS Exemptions Register.

Exemption	What it covers	Duration	Evidence needed
All relevant improvements made	Every improvement that qualifies has been made (up to the £3,500 cost cap), or none qualify, and the property is still below Band E	5 years	Details of the improvements made (or evidence none qualify), registered on the PRS Exemptions Register
High cost	Even the cheapest recommended improvement would cost more than the £3,500 cost cap	5 years	A quote or written estimate showing the cost
Wall insulation	The only recommended improvement is cavity, external or internal wall insulation, and expert advice says it would harm the property's fabric or structure	5 years	A written opinion from a suitably qualified surveyor or installer
Third-party consent	A tenant, superior landlord or other third party refuses consent to the improvement, or only agrees subject to a condition you can't reasonably meet	5 years — or until that tenant's tenancy ends, if it was the tenant's refusal you relied on	Evidence of the request and the refusal
Property devaluation	An independent surveyor's report shows the improvement would cut the property's market value by more than 5%	5 years	The surveyor's report
New landlord	You've just become the landlord in specific circumstances — for example a lease granted by court order, or inheriting a sitting tenancy through insolvency or a superior lease	6 months from the date you became the landlord	None beyond registering the exemption itself

Source: Energy Efficiency (Private Rented Property) (England and Wales) Regulations 2015 (SI 2015/962), regulations 24, 25, 31, 32 and 33, as amended by SI 2019/595 (legislation.gov.uk, accessed 10/07/2026); gov.uk MEES landlord guidance (accessed 10/07/2026).

A note on listed buildings: listed status isn't one of these exemptions, and it's a separate question entirely. Under different rules, a listed building may not need an EPC in the first place if bringing it up to standard would unacceptably alter its character or appearance (Energy Performance of Buildings (England and Wales) Regulations 2012, regulation 5(1)(a)). If your listed property does have a valid EPC below Band E, it's the MEES exemptions above that apply — not its listed status.

How do I register an EPC exemption?

Whichever exemption applies, the process is the same:

1. Check your current rating on the EPC Register.
2. Work out which exemption fits your circumstances from the table above — see the government's own MEES landlord guidance for full detail on what qualifies.
3. Gather the evidence it needs — a quote, a surveyor's report, a written opinion, or proof of the refusal, as applicable.
4. Register it on the PRS Exemptions Register, the single register covering both England and Wales.

You can let the property once a valid exemption is registered. Your local council, as enforcement authority, may still contact you for more information, and can challenge an exemption it doesn't accept as valid.

If you're planning ahead for the announced 2030 change, remember the £10,000 cost cap and 10-year exemption route are proposals, not something you can register against yet — they only take effect once the amending regulations are actually made.

Getting the detail right — what counts as a qualifying improvement, what evidence a local authority will accept — is technical, and it's exactly the kind of thing we handle for landlords on our full management service.

How much does an EPC cost?

There's no fixed government fee for an EPC assessment — the cost depends on your property and the assessor you use, so it's worth getting more than one quote from an accredited domestic energy assessor. The £10,000 figure sometimes mentioned in this context is the announced (not yet law) cost cap for 2030 improvements, not the assessment fee itself.

Check the EPC Register first — if a valid certificate for your property already exists, you don't need a new one just to check where you stand.

What happens if you don't comply

MEES is enforced by the local council for the area your property is in. Letting below the legal minimum without a registered exemption carries a financial penalty plus a separate publication penalty (the council publishes details of the breach) — and the two run together, not instead of each other:

• Up to £2,000 if the breach has run for less than 3 months
• Up to £4,000 if the breach has run for 3 months or more
• Up to £1,000 for registering false or misleading information on the PRS Exemptions Register
• Up to £2,000 for failing to comply with a compliance notice

These can stack, but the total financial penalty for one property is capped at £5,000.

Source: Energy Efficiency (Private Rented Property) (England and Wales) Regulations 2015 (SI 2015/962), regulations 34 and 40 (legislation.gov.uk, accessed 10/07/2026).

Practical next steps

Check your current EPC rating on the EPC Register. If it's below Band E, you'll need either an exemption or improvements before you can let legally. If it's below Band C and you're planning ahead of the announced 2030 change, keep hold of your EPC's recommendation report and get quotes for the relevant improvements now — useful regardless of exactly when the regulations are finalised, and it puts you ahead rather than reacting to a deadline at the last minute.

How we help with EPC compliance

Managing EPC compliance is part of our full management service. We track EPC expiry dates, advise on next steps if a property needs improvement, and keep an eye on regulatory changes like the announced move to Band C. We manage over 500 properties across South Wales, including plenty of older housing stock that needs this kind of ongoing attention.

For the wider compliance picture, see The Landlord's Guide to Renting in Wales, our Renting Homes (Wales) Act guide, and the fitness for human habitation standards your property also needs to meet. New to letting? Start with our first-time landlord checklist. If you'd rather not navigate exemption registers and compliance requirements yourself, get a quote or call us on 01792 651311.

Frequently asked questions about EPC exemptions in Wales

Do I need an EPC to let a property in Wales?

Yes — every rental property needs a valid EPC before it's marketed to let, and it must meet the current minimum rating (Band E) unless you've registered a valid exemption.

What EPC rating do I need to rent in Wales?

Band E or above. This has been the legal minimum since 1 April 2020 under the Minimum Energy Efficiency Standards. Below that, you need a registered exemption to let legally.

Is Band C required now?

No. The government has announced a move to Band C from 1 October 2030, but this is policy, not law — the amending regulations haven't been made as at 10 July 2026, so today's minimum is still Band E.

What is the EPC cost cap?

Under the announced (not yet law) 2030 policy, the proposed cap is up to £10,000 per property spent on recommended improvements, with a 10-year exemption available if a property is still below Band C after that spend.

How do I register an EPC exemption?

Check your rating, work out which of the six exemptions fits your circumstances, gather the evidence it needs, then register it on the PRS Exemptions Register — an exemption only takes effect once it's registered.

What exemptions are available and how long do they last?

Six exemption types exist for domestic rented property: all relevant improvements made, high cost, wall insulation, third-party consent and property devaluation each last 5 years; a new landlord exemption lasts 6 months from the date you became the landlord. All must be registered on the PRS Exemptions Register before you can rely on them.

Is a listed building automatically exempt from EPC rules?

No. Listed status isn't a MEES exemption. Separately, under the EPC-requirement rules, a listed building may not need an EPC at all if compliance would unacceptably alter its character — but if it does have a valid EPC below Band E, the MEES exemptions above are what apply, not its listed status.

What's the penalty for letting a non-compliant property in Wales?

Letting a property below the legal minimum EPC rating without a registered exemption is enforced by your local council: up to £2,000 for a breach under 3 months, rising to up to £4,000 at 3 months or more, plus a separate publication penalty. The total financial penalty for one property is capped at £5,000.

How much does an EPC cost?

There's no fixed government fee — costs vary by assessor and property, so it's worth getting more than one quote. The £10,000 figure sometimes quoted is the proposed 2030 improvement cost cap, not the assessment fee.