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EPC Ratings and Mortgages: What Buyers and Landlords Need to Know
- Date Published : May 20, 2025
- Date Last Modified : August 19, 2026
When buying or letting out a property the EPC rating can have a larger impact than expected as it is not just legal compliance. It can influence your mortgage options, ongoing energy costs, and even your long-term returns. Whether you are a first-time buyer, a home mover, or a landlord, understanding how EPC ratings fit into the bigger picture is essential.
When applying for a mortgage, particularly for buy-to-let or investment properties, the Energy Performance Certificate (EPC) is NOT just a formality. It carries financial, regulatory, and environmental importance.
At Nachu Finance, we are not energy advisers, but we do take a holistic approach to mortgage planning, and EPC considerations are an important part of the advice we provide.
What Is an EPC and Why It Matters
An Energy Performance Certificate (EPC) provides an energy efficiency rating for a property on a scale from A (most efficient) to G (least efficient). It is a legal requirement in the UK when:
- Selling a property
- Letting out a property
The EPC is valid for 10 years and can be easily checked and downloaded via the government portal: https://www.gov.uk/find-energy-certificate. All you will need is the postcode and door number. There is no cost involved in downloading the EPC certificate.
Minimum EPC Requirements for Buy-to-Let Mortgages
To let out a property, it must have a minimum EPC rating of E. Properties rated F or G cannot legally be rented, and mortgage lenders will typically reject applications for such properties until the EPC is improved.
So, if you’re looking to mortgage a property without a valid or acceptable EPC, this must be addressed before proceeding with the mortgage application.
Confirmed: EPC C Required for All Rentals by October 2030
In January 2026, alongside the Warm Homes Plan, the UK Government confirmed its final policy position on minimum energy standards for the private rented sector. All rental properties in England and Wales must achieve a minimum EPC rating of C from 1 October 2030.
Key points for landlords:
- Single deadline – the earlier proposal of 2028 for new tenancies has been dropped. One deadline of 1 October 2030 now applies to all tenancies, new and existing.
- Cost cap – landlords will be required to spend up to £10,000 per property (or 10% of the property value, if lower) towards reaching EPC C, with exemptions available where the standard still cannot be met.
- Early compliance protected – properties achieving an EPC C before 1 October 2029 under the current methodology will remain compliant until that certificate expires.
With the deadline now confirmed, landlords should not wait. Planning improvements early will help spread costs, avoid rushed decisions, and prevent non-compliance penalties down the line.
Green Mortgage Incentives
Many mortgage lenders offer special ‘green’ mortgage products for energy-efficient homes:
- Properties with an EPC rating of A or B often qualify
- Some lenders also accept properties with a C rating
These green products may include lower interest rates or cashback offers. As a part of our process, we always check your property’s EPC rating to see if you’re eligible for these incentives.
How to Obtain or Renew an EPC
Getting a new EPC is straightforward:
- Cost: Typically, between £40 – £120
- Timeframe: Surveyor visit required; reports usually available in 1–3 working days
- Finding a provider: A quick Google search for “EPC assessor near me” or “get an EPC certificate” will give you a list of local accredited providers who can carry out the assessment and issue the certificate.
Improving Your Property’s EPC Rating
Each EPC includes recommendations for energy improvements, including:
- Insulation upgrades
- Boiler or heating system improvements
- Double glazing
- Renewable energy installations
These improvements not only bring your property in line with regulatory requirements, but also:
- Reduce tenants’ energy bills
- Attract environmentally conscious renters
- Contribute to long-term property value
We actively encourage energy efficiency and can help direct you to trusted resources and professionals, though we don’t directly provide EPC improvement advice.
Our Approach: Mortgage Advice That Looks at the Bigger Picture
While many focus solely on rates and repayments, at Nachu Finance we take a holistic view of your property journey—from suitability and compliance, to long-term value and tenant appeal.
If the property you are considering does not have an EPC or falls short of the requirements, this is an important discussion to have before applying for a mortgage.
Frequently Asked Questions
If an EPC already exists for your property, downloading a copy is free and straightforward. Visit the government portal at https://www.gov.uk/find-
An EPC is valid for 10 years from the date of inspection. The certificate itself carries both the inspection date and the expiry date, so you can check its validity at a glance.
It depends on the type of application:
- Buy-to-let — yes. All let properties must currently hold a minimum EPC rating of E, rising to a minimum of C from 1 October 2030. Lenders will expect to see a current, valid EPC that meets the letting requirement before approving the application.
- Residential purchase — the seller or estate agent is legally required to provide a valid EPC, so you should expect to see one at the point of purchase.
- Residential remortgage — there is no mandatory requirement for a valid EPC. However, we normally ask for a copy to check whether the property qualifies for a green mortgage, available for energy-efficient homes.
Yes — green mortgages are designed to encourage energy-efficient homes, typically offering lower rates or cashback. Depending on the lender, they are available for properties rated A–B, and in some cases A–C. If your property holds one of these ratings, we always check whether the lender we are recommending offers a green product you could benefit from.
Getting a new one is simple. A new EPC typically costs £40–£120, requires a short assessor visit, and the report is usually issued within 1–3 working days. A quick search for “EPC assessor near me” will list local accredited providers who can carry out the assessment and issue the certificate.
Mortgage Planning That Goes Beyond the Basics
If you’re buying or refinancing a property and want mortgage advice that factors in more than just numbers—you’re in the right place. At Nachu Finance, we’ll help ensure every aspect of your mortgage journey is well thought through, including EPC compliance and opportunities for green incentives.
Contact us today to benefit from whole-of-market advice, experience-driven insights, and a tech-savvy, transparent approach.
About the Author
Sekkappan Alagu is the Founder of Nachu Finance Ltd, established in 2006. With an early career in journalism and publishing, he brings clarity and structured thinking to complex financial topics. Through the Nachu Finance Blog and Knowledge Hub, he shares insights drawn from nearly two decades of client advisory experience, helping readers make informed decisions and understand best practices in mortgages, protection and long-term financial planning.
Business Profile
Nachu Finance Ltd is a directly authorised FCA-regulated firm providing mortgage, insurance and estate planning advice to clients across the UK. The firm takes a holistic approach — considering protection, tax efficiency and long-term planning alongside property finance — maintaining high regulatory standards while keeping advice clear and easy to follow. To learn more about the firm's background and story, visit the About Nachu Finance page.
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