Energy Performance Certificate
Third Floor Flat, 1-4 High Street
CF10 1PX
CARDIFF
Current
G
1
Potential
G
9
This G-Rated Property Costs Significantly More to Run
This Property
£2,544
estimated per year
UK Average
£1,800
per year
After Improvements
£1,756
potential per year
This property costs approximately £744 more per year than the UK average. Recommended improvements could save up to £788 annually.
💰 Government Grants Available for This Property
🏛️ BUS Grant
£7,500
Off the cost of an air source heat pump. Available now — limited places.
Check Eligibility →🏠 ECO4 Scheme
Free
Free insulation & heating upgrades for eligible households on benefits or low income.
Check Eligibility →📉 0% VAT
Save ~20%
Zero VAT on heat pumps, insulation, and solar panels until 2027. Applies automatically.
Get Solar Quote →How to Improve This G-Rated Property
With the right upgrades, this property could reach a G rating — saving up to £788 per year. Improvements are ranked by return on investment.
Showing quick wins with fastest payback first
💰 Save £2,070/year
With 4 selected upgrades
Future Energy Price Simulator
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Your Savings Today
£2,070/yr
£20,700 over 10 years
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£2,070/yr
£20,700 over 10 years
Build Your Upgrade Plan
Sorted by best return on investment (quick wins first)
Loft Insulation
Your roof is rated Very Poor. Cheapest upgrade with fastest payback — top up to 270mm.
New A-Rated Boiler
Your heating is rated Very Poor. Compare local boiler installers.
Air Source Heat Pump
Ultra-efficient heating with £7,500 government grant. OVO: MCS certified installation.
External Wall Insulation
Your walls are rated Very Poor. External insulation can dramatically cut heat loss.
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Why Does This Property Have a G Rating?
This flat is located in CARDIFF, CF10 1PX. The property offers 66m² (710 sq ft) of modest-sized living space with 3 habitable rooms. It is a period property with Victorian or earlier origins. Currently rated G (1/100) for energy efficiency, this property would benefit significantly from energy improvements. The solid walls lack insulation. Solid wall insulation (external or internal) typically costs £8,000-£14,000 but can reduce heat loss by up to 35% and improve your EPC rating by 1-2 bands. The pitched roof lacks adequate insulation. Topping up loft insulation to 270mm (the recommended depth) typically costs £300-£500 and could save £150-£250 annually, with the investment often paying for itself within 2-3 years. Double glazing is installed throughout the property, providing good thermal and acoustic insulation. Estimated annual energy costs are £2544, comprising £2092 for heating, £380 for hot water, and £72 for lighting. The property produces 11.0 tonnes of CO2 per year, which is high for a UK home.
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Achievable Rating
With recommended improvements
Based on assessment dated 24 Nov 2010
What's Causing the Poor Energy Rating?
The EPC assessor rated each element of this property. Poor and average ratings are the biggest opportunities for improvement.
🧱 Walls
Solid brick, as built, no insulation (assumed)
🏗️ Roof
Pitched, no insulation
🪟 Windows
Fully double glazed
📦 Floor
(other premises below)
🔥 Heating
No system present: electric heaters assumed
🚿 Hot Water
NaN
💡 Lighting
0.0% low energy — No low energy lighting
Property Information
Full Address
Third Floor Flat
1-4 High Street
CF10 1PX
CARDIFF
Property Type
Flat
NO DATA!
Construction Age
England and Wales: before 1900
Floor Area
66.0 m²
3.0 total rooms
CO₂ Emissions
11.0 tonnes/year
169 kg/m²
Energy Consumption
972 kWh/m²/year
G-Rated Properties in CARDIFF
CARDIFF properties with G ratings are among the least energy efficient in the area. Properties in this postcode district (CF10) that have undergone improvement works have seen significant increases in EPC ratings and corresponding reductions in energy bills.
Annual Running Costs — Current vs Potential
🔥 Heating
No system present: electric heaters assumed
£2092 /yr
Save £682/yr with improvements
🚿 Hot Water
£380 /yr
Save £106/yr with improvements
💡 Lighting
0.0% low energy
£72 /yr
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Broadband & Connectivity
Average download speed: 69 Mbps
Download Speed
Upload Speed
Available Providers
What do these speeds mean? 10-30 Mbps: Good for browsing and streaming. 30-100 Mbps: Great for multiple users and HD streaming. 100-300 Mbps: Excellent for 4K streaming and gaming. 300+ Mbps: Perfect for large households and heavy internet use.
Data source: Broadband speeds are from Ofcom Connected Nations 2025 report (July 2025 release). Data shows typical speeds available in this postcode area. Actual speeds at this specific property may vary depending on line quality, distance from exchange, and chosen provider. Always verify availability with providers before committing.
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More Properties in the CF10 Area
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All properties in CF10 • Click to view detailed energy performance data
About this EPC: Energy Performance Certificates are valid for 10 years and are required when a property is built, sold, or rented.
Data Sources: UK Energy Performance Certificate Register, HM Land Registry Price Paid Data, Police.uk crime statistics.
Public sector information licensed under the Open Government Licence v3.0.