Energy Performance Certificate
1, Thistleworth Close
TW7 4QQ
ISLEWORTH
Current
C
70
Potential
C
73
At a Glance
About This Property
This terraced flat is located in ISLEWORTH, TW7 4QQ. The property offers 82m² (883 sq ft) of good-sized living space with 3 habitable rooms. It is a post-war property from the mid-20th century. The property holds an EPC rating of C (70/100), meeting the government's target standard for energy efficiency. The gas central heating system has good efficiency, indicating a relatively modern, well-maintained boiler. 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 £665, comprising £474 for heating, £100 for hot water, and £91 for lighting. The property produces 2.7 tonnes of CO2 per year, which is low for a UK home. The property last sold in June 2015 for £399,450.
How Does 1, Thistleworth Close Compare?
With an energy efficiency score of 70/100, this ISLEWORTH property is above average, performing better than 60% of UK properties. Annual energy costs of £665 are approximately £1135 below the UK average of £1800, representing significant savings. At 2.7 tonnes of CO2 per year, emissions are below the UK average of 4.5 tonnes.
Data source: Comparisons based on UK national statistics from the Department for Energy Security and Net Zero.This property is located in the TW7 postcode district.
How This Property Compares
vs UK Average
vs ISLEWORTH
vs TW7
National Ranking: With an EPC score of 70/100, this property is good and performs better than approximately 60% of UK homes for energy efficiency.
Top 40% nationally
Energy Costs: £91/year more than the ISLEWORTH average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
Based on assessment dated 12 Mar 2015
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Property Information
Full Address
1, Thistleworth Close
TW7 4QQ
ISLEWORTH
Property Type
Flat
End-Terrace
Construction Age
England and Wales: 1967-1975
Floor Area
82.0 m²
3.0 total rooms
3.0 heated
Tenure
owner-occupied
Efficiency Score
70 / 100
Potential: 73
CO₂ Emissions
2.7 tonnes/year
33 kg/m²
Energy Consumption
187 kWh/m²/year
Last Inspected
12 Mar 2015
marketed sale
About ISLEWORTH
ISLEWORTH is situated in Middlesex, South East. Properties in ISLEWORTH have an average EPC rating of D (score 64/100). The TW7 postcode district contains over 12400 registered properties.
Location & Nearby Area
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Property Sale History
£399,450
9 June 2015
Type: Flat
Annual Energy Costs
Heating
Boiler and radiators, mains gas
£474.0/yr
Save £18/yr
Hot Water
£100.0/yr
Lighting
33.0% low energy
£91.0/yr
Save £36/yr
Building Elements
Walls
Cavity wall, filled cavity
Roof
(another dwelling above)
Windows
Fully double glazed
Floor
To unheated space, no insulation (assumed)
Heating System
Boiler and radiators, mains gas
Main Fuel
mains gas (not community)
Lighting
Low energy lighting in 33% of fixed outlets
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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
Isleworth and Syon School for Boys
SecondaryLast inspected: May 2022
Nishkam School West London
All-throughLast inspected: Jul 2022
Spring Grove Primary School
PrimaryLast inspected: Feb 2013
Alexandra Primary School
PrimaryLast inspected: Jan 2023
Heston Community School
SecondaryLast inspected: Dec 2022
Bolder Academy
SecondaryLast inspected: Dec 2022
Lampton Academy
SecondaryLast inspected: May 2013
Heston Primary School
PrimaryLast inspected: Jun 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. 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.