Current minimum standard
For domestic private rented properties covered by the Minimum Energy Efficiency Standard (MEES) Regulations, landlords generally cannot let or continue to let a property rated F or G unless a valid exemption applies.
Since 1 April 2020 this has applied to covered existing tenancies as well as new lettings. The current legal minimum remains E; it has not automatically changed to C.
What to check before letting
- Confirm whether the tenancy and property are covered by the regulations.
- Check the official register for a valid EPC and its expiry date.
- If the property is F or G, identify relevant recommended improvements.
- Obtain evidence of costs, funding and consent where needed.
- Complete the required improvements or register a valid exemption before letting.
- Keep the certificate, quotes, invoices, consent correspondence and exemption evidence.
The current cost cap
GOV.UK landlord guidance states that a landlord is not currently required to spend more than £3,500 including VAT on energy-efficiency improvements for the purpose of meeting EPC E. If the property cannot reach E within the cap, the landlord should complete the eligible improvements that can be made and then register the appropriate exemption.
The rules around third-party funding, previous spending and qualifying measures are detailed. Use the official guidance for the specific case rather than relying on a summary.
Exemptions are not automatic
Possible routes include an “all relevant improvements made” position, inability to obtain required third-party consent or evidence of specified devaluation. Conditions and evidence requirements vary. Exemptions must be registered and are time-limited; a low rating by itself is not an exemption.
What about EPC C by 2030?
As of the official guidance updated 5 May 2026, government says it aims for as many privately rented homes as possible to reach EPC C or equivalent by 2030. It is exploring policy design after the 2026 consultation and will provide more information.
That direction is relevant for investment planning, but it is not a reason to describe C as the current legal minimum. Landlords should monitor GOV.UK for the final design, dates, cost cap and metric.
Portfolio planning
- Record every certificate, expiry date, current score and potential score.
- Prioritise F and G properties and those close to expiry.
- Separate legal-compliance work from optional longer-term upgrades.
- Review works during void periods where practical.
- Recheck the official guidance before each major investment decision.