EPC rules – What UK landlords must know about the new MEES

As of October 1, 2030, all landlords in the UK must make sure that their rental properties have an EPC rating of at least C or a valid exemption in order to continue renting them out legally under the new MEES rules.

More than half the homes in the UK’s private rental sector (PRS) currently have an Energy Performance Certificate (EPC) rating below C, highlighting the scale of upgrades required before the 2030 deadline. Landlords and buy-to-let (BTL) investors should be aware of these upcoming changes to EPC rules in the UK to prevent fines and loss of rental income.

Why do EPC rules matter for landlords?

An EPC shows a property’s energy efficiency, including its emissions and running costs. For landlords, it is important for legal compliance and it also directly impacts rental demand and property value. Homes with better insulation, efficient heating systems and renewable energy features usually get higher ratings and lower energy bills.

Read how EPC ratings affect a property’s sale and rental potential.

What is the new MEES for EPC ratings?

Under the latest EPC regulations, all rental properties in the UK must have a minimum EPC rating of C, up from the current minimum of E, by October 2030. Furthermore, as per the government’s Warm Homes Plan, the process of measuring EPC will also shift from a cost-based Energy Efficiency Rating (EER) to the new Home Energy Model (HEM) from October 2029. The aim is to improve the energy efficiency of UK homes, reduce emissions and help households combat fuel poverty by reducing energy bills.

Here’s a detailed explanation of how EPC ratings affect a home’s running costs.

What’s changing from EER to HEM?

The Energy Efficiency Rating (EER) system we have now makes guesses about how well a home will work based on basic assumptions. The Home Energy Model (HEM), which is projected to be released in 2029, will use more specific data to provide a clearer picture of how energy is used, how much pollution is emitted, and how well buildings perform.
In simple terms, while EER focuses on estimated energy costs, HEM better reflects real-world efficiency.

Is there a cost cap on how much landlords need to spend to improve EPC ratings?

Yes, as per the government’s guidelines, private landlords have a cost cap of £10,000 per rental property, or 10% of the property’s value for homes valued at below £100,000, to improve their energy efficiency and bring them up to the required cut-off. If the next improvement would take the total spend over the cost cap, landlords can register for a cost cap exemption and let their property for another 10 years.

Who is affected by the new EPC rules?

The new EPC rules will apply to UK landlords, BTL investors, overseas landlords renting properties in the UK, portfolio landlords and property management companies.

EPC rules timeline and key dates

The UK government is putting the new EPC requirements into effect in stages, which gives landlords time to get ready:

From October 1, 2025: Any money spent to make a home more energy-efficient will contribute toward the £10,000 cost limit.

2026 to 2029: The new Home Energy Model (HEM) will be introduced alongside the current Energy Efficiency Rating (EER) system, allowing a transition period.

From October 2029: All new EPC assessments will use the HEM system.

From 1 October 2030: All rental properties must have an EPC rating of C or a valid exemption to be legally rented.

Planning upgrades early can help landlords spread costs and avoid last-minute compliance risks.

How to find out your property’s EPC rating?

The official UK EPC register makes it easy for landlords to find out a property’s EPC rating online. Just enter the property’s postcode to see its current rating, certificate details and expiry date.

If your property doesn’t have a valid EPC, you’ll need to hire a certified domestic energy assessor to undertake an evaluation. An EPC is valid for 10 years after it is obtained, and you must show it when you are renting out a house.

How can landlords improve their properties’ EPC ratings?

The work involved in improving the EPC rating of a rental property and the associated costs largely depend on the property’s size and age. For newer properties that need to be upgraded from bands D and E to band C, low-cost improvements may work. However, for older homes that are currently in bands F and G, larger upgrades may be required.

Low-cost improvements (for minor upgrades):

• Loft insulation
• Draught proofing
• LED lighting
• Smart thermostats
• Heating control upgrades

Major upgrades (for lower-rated properties):

• Double or triple glazing
• Cavity wall insulation
• Boiler upgrades
• Air-source or ground-source heat pumps
• Solar panels

Why landlords should plan ahead

Landlords should start preparing for the new EPC criteria now, even though they won’t take effect until October 2030. This will help them avoid last-minute costs and the risk of flouting any rules. It will also help landlords –

• Spread upgrade costs over time instead of facing a large one-off expense
• Avoid potential fines and rental disruptions due to non-compliance
• Maintain rental income by ensuring properties remain legally lettable
• Stay competitive in the rental market with energy-efficient homes that attract tenants

As energy efficiency rules become stricter over time, landlords may safeguard both the value of their property and their long-term returns by acting quickly.

Read The benefits of investing in energy-efficient property and understanding UK EPC ratings

How Benham and Reeves is helping landlords

Adapting to the new EPC rules and tighter regulations, such as the Renters’ Rights Act, can be challenging for many overseas and portfolio landlords. Our lettings and property experts are always up to date with the latest developments in the rental sector and offer a one-stop property management service, including support with arranging EPCs, free property valuations and more.

You can connect with us to speak to a property expert about improving your property’s EPC and staying compliant with all current and upcoming regulations.