EPC Rating F indicates poor energy efficiency, with a SAP score of 21-38 points. While better than G, these properties still have high energy costs and significant room for improvement.
What Does EPC Rating F Mean?
An EPC Rating F places your property in the second-lowest band on the Energy Performance Certificate scale. With a SAP score between 21 and 38 points, F-rated properties are energy inefficient but have some basic improvements over G-rated homes.
Properties with an EPC F rating typically cost £2,500-£4,000 per year to heat and power — approximately 60-80% more than a well-insulated property with a C rating.
Typical Features of EPC F Properties
- Partial insulation: Some loft insulation (less than 100mm) but often no wall insulation
- Mixed glazing: Combination of single and double glazing
- Older heating: Boiler over 15 years old or electric storage heaters
- Basic controls: Room thermostat but no programmer or TRVs
- Some draught issues: Gaps around older windows and doors
Can You Rent Out an EPC F Property?
No, EPC F properties cannot be legally rented. The Minimum Energy Efficiency Standards (MEES) require rental properties to have at least an EPC E rating. Landlords must improve F-rated properties before renting or face fines up to £5,000.
Common F-Rated Property Types
- 1930s-1950s semi-detached houses with original features
- Converted flats in Victorian buildings
- 1970s houses with electric heating
- Bungalows with limited insulation
- Ex-council properties before renovation
Improving from EPC F to E (Minimum for Rentals)
Moving from F to E is often achievable with modest investments:
Cost-Effective Improvements
- Top up loft insulation to 270mm: £300-400, adds 4-6 points
- Cavity wall insulation: £500-1,500, adds 10-15 points
- Upgrade heating controls: £350-500, adds 3-5 points
- Hot water cylinder insulation: £20-150, adds 2-3 points
Most F-rated properties can reach E rating with £1,000-2,000 in improvements, making them rental-compliant.
Reaching EPC C (2030 Rental Standard)
To future-proof for the 2030 EPC C requirement, consider:
- New A-rated boiler: £2,500-3,500, adds 15-20 points
- Full double glazing: £3,000-5,000, adds 5-10 points
- External wall insulation: £8,000-12,000, adds 15-20 points
- Solar panels: £5,000-7,000, adds 8-12 points
Energy Costs for EPC F Properties
| Property Size | Annual Energy Cost | Potential Savings at C |
|---|---|---|
| 1-bed flat | £1,500-2,000 | £700-1,000/year |
| 2-bed house | £2,500-3,200 | £1,200-1,800/year |
| 3-bed house | £3,200-4,200 | £1,600-2,400/year |
| 4-bed house | £4,000-5,500 | £2,200-3,200/year |
Should You Buy an EPC F Property?
F-rated properties can offer good value if you plan improvements:
Pros:
- Often 3-7% cheaper than similar E-rated properties
- Easier to improve than G-rated homes
- Can reach C rating with £8,000-15,000 investment
- Potential for adding significant value
Cons:
- Cannot be rented without improvements
- High energy bills until upgraded
- May need £10,000+ for comprehensive improvements
- Some mortgage lenders charge higher rates
Timeline for F-Rated Properties
- Now: Cannot be rented (must reach E minimum)
- 2025: Proposed requirement for all homes for sale to have valid EPC
- 2028: Possible mortgage lending restrictions below E
- 2030: Rental properties must reach C rating
- 2035: Possible C rating requirement for all homes
Next Steps for F-Rated Properties
Focus on reaching E rating first with quick wins like insulation and controls (£1,000-2,000). Then plan for C rating by 2030 with a new boiler and comprehensive insulation (£8,000-12,000 total). This staged approach spreads costs while ensuring compliance.