Energy Performance Certificate
40 Marle Close, Pentwyn
CF23 7EP
CARDIFF
Current
C
78
Potential
B
81
At a Glance
About This Property
This flat is located in CARDIFF, CF23 7EP. The property offers 69m² (743 sq ft) of modest-sized living space with 3 habitable rooms. It is a modern property built in the 2000s. The property holds an EPC rating of C (78/100), meeting the government's target standard for energy efficiency. With recommended improvements, it could achieve a B rating (81/100). The property uses electric storage heaters, which charge overnight on cheaper electricity tariffs. While having low installation costs, running costs are typically higher than gas central heating. A heat pump could reduce electricity use by 60-70%. The walls feature cavity wall insulation with good efficiency ratings, providing solid thermal performance. 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 £873, comprising £457 for heating, £357 for hot water, and £59 for lighting. The property produces 0.7 tonnes of CO2 per year, which is very low for a UK home.
How Does 40 Marle Close Compare?
With an energy efficiency score of 78/100, this CARDIFF property is above average, performing better than 60% of UK properties. Annual energy costs of £873 are approximately £927 below the UK average of £1800, representing significant savings. CO2 emissions of 0.7 tonnes/year are less than half the UK household average, making this an environmentally friendly choice.
Data source: Comparisons based on UK national statistics from the Department for Energy Security and Net Zero.This property is located in the CF23 postcode district.
How This Property Compares
vs UK Average
vs CARDIFF
vs CF23
National Ranking: With an EPC score of 78/100, this property is good and performs better than approximately 60% of UK homes for energy efficiency.
Top 40% nationally
Energy Costs: £255/year more than the CARDIFF average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
With recommended improvements
Based on assessment dated 28 Jun 2025
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Property Information
Full Address
40 Marle Close
Pentwyn
CF23 7EP
CARDIFF
Property Type
Flat
Not Recorded
Construction Age
England and Wales: 2003-2006
Floor Area
69.0 m²
3.0 total rooms
3.0 heated
Tenure
Owner-occupied
Efficiency Score
78 / 100
Potential: 81
CO₂ Emissions
0.7 tonnes/year
10 kg/m²
Energy Consumption
111 kWh/m²/year
Last Inspected
28 Jun 2025
marketed sale
About CARDIFF
CARDIFF is situated in Cardiff, Wales. Properties in CARDIFF have an average EPC rating of D (score 64/100). This property performs better than most homes in the area. The CF23 postcode district contains over 14200 registered properties.
Location & Nearby Area
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Annual Energy Costs
Heating
Electric storage heaters
£457.0/yr
Save £94/yr
Hot Water
£357.0/yr
Lighting
100.0% low energy
£59.0/yr
Building Elements
Walls
Cavity wall, as built, insulated (assumed)
Roof
(another dwelling above)
Windows
Fully double glazed
Floor
Solid, insulated (assumed)
Heating System
Electric storage heaters
Main Fuel
electricity (not community)
Lighting
Good lighting efficiency
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Double Glazing
Your windows are rated Poor. Modern A-rated double glazing reduces drafts and heat loss.
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See how this property compares to national averages. Explore energy efficiency trends, top-rated areas, and comprehensive UK property statistics.
View UK Property Insights →Nearby Schools
Within 3 miles of this property
Mary Elton Primary School
PrimaryLast inspected: Mar 2020
Kewstoke Primary School
PrimaryLast inspected: Jun 2018
St John the Evangelist Church School
PrimaryLast inspected: May 2019
Worlebury St Pauls Church School
PrimaryClevedon School
SecondarySt Nicholas Chantry Church of England Primary School
PrimaryLast inspected: Jun 2022
Yeo Moor Primary School
PrimaryLast inspected: Jun 2023
All Saints Church of England Primary School
PrimaryLast inspected: Apr 2023
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: 312 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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All properties in CF23 • Click to view detailed energy performance data
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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. Learn more about EPCs or book an EPC assessment.
Cost estimates are approximate and actual savings may vary. Find local tradesmen to get accurate quotes for improvements.
Data Sources: This report contains public sector information licensed under the Open Government Licence v3.0.
Data from: UK Energy Performance Certificate Register, HM Land Registry Price Paid Data, and Police.uk crime statistics.