Energy Performance Certificate
Flat 1, 20 Romilly Road West
CF5 1FT
CARDIFF
Current
G
11
Potential
C
75
This G-Rated Property Costs Significantly More to Run
This Property
£1,969
estimated per year
UK Average
£1,800
per year
After Improvements
£400
potential per year
This property costs approximately £169 more per year than the UK average. Recommended improvements could save up to £1,584 annually.
⚖️ Landlord Legal Compliance — Action Required
This G-rated property does not meet the Minimum Energy Efficiency Standards (MEES). Since April 2020, landlords cannot legally let properties rated F or G without a valid registered exemption. Fines of up to £30,000 apply. Immediate improvements are required to reach at least an E rating.
💰 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 C rating — saving up to £1,584 per year. Improvements are ranked by return on investment.
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💰 Save £3,572/year
With 4 selected upgrades
Future Energy Price Simulator
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Your Savings Today
£3,572/yr
£35,720 over 10 years
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£3,572/yr
£35,720 over 10 years
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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.
Cavity Wall Insulation
Your walls are rated Very Poor. Cavity fill is quick and cost-effective.
Double Glazing
Your windows are rated Poor. Modern A-rated double glazing reduces drafts and heat loss.
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Why Does This Property Have a G Rating?
This semi-detached flat is located in CARDIFF, CF5 1FT. The property offers 46m² (495 sq ft) of compact living space with 3 habitable rooms. It is a characterful interwar or early 20th century home. Currently rated G (11/100) for energy efficiency, this property would benefit significantly from energy improvements. With recommended improvements, it could achieve a C rating (75/100). Double glazing is installed, though the efficiency rating suggests older units. Modern low-E double glazing can be up to 40% more efficient than units installed before 2002. Estimated annual energy costs are £1969, comprising £1845 for heating, £72 for hot water, and £52 for lighting. The property produces 5.5 tonnes of CO2 per year, which is moderate for a UK home. IMPORTANT FOR LANDLORDS: With an EPC rating of G, this property does not meet the Minimum Energy Efficiency Standards (MEES). Since April 2020, landlords cannot legally let properties rated F or G without registering a valid exemption. Penalties for non-compliance can reach up to £30,000. Immediate improvements are required to bring the property to at least an E rating.
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Achievable Rating
With recommended improvements
Based on assessment dated 18 May 2020
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
Granite or whinstone, as built, no insulation (assumed)
🏗️ Roof
Pitched, 100 mm loft insulation
🪟 Windows
Partial double glazing
📦 Floor
Solid, no insulation (assumed)
🔥 Heating
Room heaters, electric
🚿 Hot Water
NaN
💡 Lighting
67.0% low energy — Low energy lighting in 67% of fixed outlets
Property Information
Full Address
Flat 1
20 Romilly Road West
CF5 1FT
CARDIFF
Property Type
Flat
Semi-Detached
Construction Age
England and Wales: 1900-1929
Floor Area
46.0 m²
3.0 total rooms
CO₂ Emissions
5.5 tonnes/year
121 kg/m²
Energy Consumption
715 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 (CF5) that have undergone improvement works have seen significant increases in EPC ratings and corresponding reductions in energy bills.
Location & Nearby Area
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Annual Running Costs — Current vs Potential
🔥 Heating
Room heaters, electric
£1845 /yr
Save £1588/yr with improvements
🚿 Hot Water
£72 /yr
💡 Lighting
67.0% low energy
£52 /yr
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Nearby Schools
Within 3 miles of this property
Kewstoke Primary School
PrimaryLast inspected: Jun 2018
Worlebury St Pauls Church School
PrimaryChrist Church Church of England Primary School
PrimaryLast inspected: May 2023
Walliscote Primary School
PrimaryLast inspected: Mar 2022
Corpus Christi Catholic Primary School
PrimaryAshcombe Primary School
PrimaryLast inspected: Feb 2022
Milton Park Primary School
PrimaryLast inspected: Jan 2022
Hans Price Academy
SecondaryLast inspected: Feb 2018
About school ratings: Ofsted ratings range from Outstanding to Inadequate. These ratings are based on inspections of teaching quality, leadership, pupil behavior, and safety. Note that school catchment areas vary - check with the school or local council for admission details.
Data source: School information from Get Information About Schools (GIAS). Distances are approximate. Always verify school catchment areas directly with the school or local education authority.
Broadband & Connectivity
Average download speed: 500 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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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.