Energy Performance Certificate
7, Trefaser Crescent, Rumney
CF3 1RF
CARDIFF
Current
B
81
Potential
B
82
At a Glance
About This Property
This terraced flat is located in CARDIFF, CF3 1RF. The property offers 46.23m² (498 sq ft) of compact living space with 2 habitable rooms. It is a post-war property from the mid-20th century. With an EPC rating of B (81/100), this property is highly energy efficient, placing it in the top tier of UK homes. The property benefits from a highly efficient gas central heating system, likely a modern condensing boiler achieving 90%+ efficiency. The property has modern timber frame or system-built walls, which typically offer good insulation properties when properly maintained. The property has good loft insulation, though topping up to the recommended 270mm depth could provide additional energy savings. 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 £375, comprising £254 for heating, £76 for hot water, and £45 for lighting. The property produces 1.4 tonnes of CO2 per year, which is very low for a UK home.
How Does 7, Trefaser Crescent Compare?
With an energy efficiency score of 81/100, this CARDIFF property is excellent, ranking in the top 15% nationally. Annual energy costs of £375 are approximately £1425 below the UK average of £1800, representing significant savings. With 46.23m² of space, this is a more compact property compared to the UK average of 87m². CO2 emissions of 1.4 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 CF3 postcode district.
How This Property Compares
vs UK Average
vs CARDIFF
vs CF3
National Ranking: With an EPC score of 81/100, this property is excellent and performs better than approximately 85% of UK homes for energy efficiency.
Top 15% nationally
Energy Costs: £243/year less than the CARDIFF average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
Based on assessment dated 10 Feb 2011
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Property Information
Full Address
7, Trefaser Crescent
Rumney
CF3 1RF
CARDIFF
Property Type
Flat
Mid-Terrace
Construction Age
England and Wales: 1967-1975
Floor Area
46.23 m²
2.0 total rooms
2.0 heated
Tenure
rental (social)
Efficiency Score
81 / 100
Potential: 82
CO₂ Emissions
1.4 tonnes/year
29 kg/m²
Energy Consumption
181 kWh/m²/year
Last Inspected
10 Feb 2011
rental (social)
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. Heating costs are £364 below the CARDIFF average, offering good value. The CF3 postcode district contains over 15900 registered properties.
Location & Nearby Area
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Annual Energy Costs
Heating
Boiler and radiators, mains gas
£254.0/yr
Hot Water
£76.0/yr
Lighting
20.0% low energy
£45.0/yr
Save £20/yr
Building Elements
Walls
System built, with external insulation
Roof
Pitched, 200 mm loft insulation
Windows
Fully double glazed
Floor
(other premises below)
Heating System
Boiler and radiators, mains gas
Main Fuel
mains gas - this is for backwards compatibility only and should not be used
Lighting
Low energy lighting in 20% of fixed outlets
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📊 Compare with UK-Wide Property Data
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
St John the Evangelist Church School
PrimaryLast inspected: May 2019
Clevedon School
SecondaryKewstoke Primary School
PrimaryLast inspected: Jun 2018
St Nicholas Chantry Church of England Primary School
PrimaryLast inspected: Jun 2022
Worlebury St Pauls Church School
PrimaryYeo 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: 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. 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.