Energy Performance Certificate
76, Mardy Street
CF11 6QU
CARDIFF
Current
F
37
Potential
C
79
This F-Rated Property Costs Significantly More to Run
This Property
£1,976
estimated per year
UK Average
£1,800
per year
After Improvements
£860
potential per year
This property costs approximately £176 more per year than the UK average. Recommended improvements could save up to £1,116 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 F-Rated Property
With the right upgrades, this property could reach a C rating — saving up to £1,116 per year. Improvements are ranked by return on investment.
Showing quick wins with fastest payback first
💰 Save £2,716/year
With 4 selected upgrades
Future Energy Price Simulator
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Your Savings Today
£2,716/yr
£27,160 over 10 years
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£2,716/yr
£27,160 over 10 years
Build Your Upgrade Plan
Sorted by best return on investment (quick wins first)
Loft Insulation
Your roof is rated Poor. Cheapest upgrade with fastest payback — top up to 270mm.
Air Source Heat Pump
Ultra-efficient heating with £7,500 government grant. OVO: MCS certified installation.
Solar Panels + Battery
Your house is ideal for solar. OVO: UK's #1 green energy supplier.
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 F Rating?
This terraced house is located in CARDIFF, CF11 6QU. The property offers 125m² (1346 sq ft) of spacious living space with 7 habitable rooms. It is a characterful interwar or early 20th century home. Currently rated F (37/100) for energy efficiency, this property would benefit significantly from energy improvements. With recommended improvements, it could achieve a C rating (79/100). The gas central heating system has good efficiency, indicating a relatively modern, well-maintained boiler. 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. 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 £1976, comprising £1666 for heating, £222 for hot water, and £88 for lighting. The property produces 9.0 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 3 Sept 2014
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, 50 mm loft insulation
🪟 Windows
Fully double glazed
📦 Floor
Solid, no insulation (assumed)
🔥 Heating
Boiler and radiators, mains gas
🚿 Hot Water
NaN
💡 Lighting
71.0% low energy — Low energy lighting in 71% of fixed outlets
Property Information
Full Address
76, Mardy Street
CF11 6QU
CARDIFF
Property Type
House
End-Terrace
Construction Age
England and Wales: 1900-1929
Floor Area
125.0 m²
7.0 total rooms
CO₂ Emissions
9.0 tonnes/year
72 kg/m²
Energy Consumption
372 kWh/m²/year
F-Rated Properties in CARDIFF
CARDIFF properties with F ratings are among the least energy efficient in the area. Properties in this postcode district (CF11) 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
Boiler and radiators, mains gas
£1666 /yr
Save £974/yr with improvements
🚿 Hot Water
£222 /yr
Save £120/yr with improvements
💡 Lighting
71.0% low energy
£88 /yr
Save £22/yr with improvements
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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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More Properties in CF11 6QU
Showing properties in the same postcode. Click to view detailed EPC data for each property.
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All properties in CF11 • 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.