If your property has an EPC rating of F or G, it means it sits in the lowest energy efficiency band under the Energy Performance Certificate system in the United Kingdom. These properties are expensive to run, harder to rent or sell, and often fall below legal rental standards.

 What Does an EPC F or G Rating Mean?

An EPC rates a property from A (most efficient) to G (least efficient).

  • F rating: Very poor efficiency
  • G rating: Extremely poor efficiency

👉 These homes typically have:

  • Little or no insulation
  • Outdated boilers or heating systems
  • High heat loss through walls, roof, or windows
  • Very high energy bills

 Can You Rent an EPC F or G Property?

In most cases, no.

Under UK Minimum Energy Efficiency Standards (MEES):

  • Rental properties must be rated E or above
  • F and G rated properties are generally illegal to let

This applies across England, including areas like London.

 Risks of Owning an EPC F or G Property

 1. Rental Restrictions

  • Cannot legally let in most cases
  • Risk of tenancy compliance issues

 2. Financial Penalties

  • Fines for non-compliance
  • Increased enforcement risk

 3. Lower Property Value

  • Reduced buyer and tenant demand
  • Harder to sell in competitive markets

 4. High Energy Costs

  • Expensive heating bills
  • Poor comfort for occupants
  • Inefficient energy usage

 What Property Owners Must Do

✔ Step 1: Get an Updated EPC Assessment

Identify exactly why the property is rated F or G

✔ Step 2: Focus on High-Impact Improvements

The fastest ways to improve include:

  •  Loft insulation upgrades
  • Cavity or solid wall insulation
  •  Boiler replacement (old to efficient systems)
  •  Double glazing installation
  •  LED lighting upgrades

✔ Step 3: Aim for Minimum EPC E (Then C if Possible)

  • Minimum legal rental standard: E rating
  • Future expectations may push toward C rating

✔ Step 4: Reassess After Improvements

Once upgrades are complete:

  • Book a new EPC inspection
  • Confirm improved rating

 Can You Improve from F or G Quickly?

Yes—many properties can move up 1–3 EPC bands with targeted upgrades, especially when insulation and heating systems are improved.

 FAQs

Can I sell a property with EPC F or G?

Yes, but it may be harder to sell and less attractive to buyers.

Is it illegal to own an F or G property?

No—but renting it out is usually restricted.

How much does it cost to improve EPC F or G?

Typically £2,000 to £10,000+, depending on upgrades needed.

 Final Thoughts

An EPC rating of F or G is a warning sign—not just for compliance, but also for energy costs and property value.

👉 The priority should be:

  • Improve insulation
  • Upgrade heating systems
  • Bring the property to at least an E rating (minimum legal standard)

 Need Help Improving Your EPC Rating?

👉 https://epcrate.co.uk/booking/
👉 https://epcrate.co.uk/pricing/

EPCRate Contact Details

150–160 City Road
London, EC1V 2NX

📞 020 3488 4142
📧 info@epcrate.co.u