Energy Performance Certificate
12, Deepwell Close
TW7 5EN
ISLEWORTH
Current
B
82
Potential
B
82
At a Glance
About This Property
This terraced house is located in ISLEWORTH, TW7 5EN. The property offers 77.24m² (831 sq ft) of modest-sized living space with 3 habitable rooms. It is built during the 1980s construction period. With an EPC rating of B (82/100), 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 walls feature cavity wall insulation with good efficiency ratings, providing solid thermal performance. Double glazing is installed throughout the property, providing good thermal and acoustic insulation. Estimated annual energy costs are £452, comprising £311 for heating, £99 for hot water, and £42 for lighting. The property produces 1.8 tonnes of CO2 per year, which is very low for a UK home. The property last sold in July 2018 for £420,000.
How Does 12, Deepwell Close Compare?
With an energy efficiency score of 82/100, this ISLEWORTH property is excellent, ranking in the top 15% nationally. Annual energy costs of £452 are approximately £1348 below the UK average of £1800, representing significant savings. CO2 emissions of 1.8 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 TW7 postcode district.
How This Property Compares
vs UK Average
vs ISLEWORTH
vs TW7
National Ranking: With an EPC score of 82/100, this property is excellent and performs better than approximately 85% of UK homes for energy efficiency.
Top 15% nationally
Energy Costs: £122/year less than the ISLEWORTH average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
Based on assessment dated 31 Mar 2011
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Property Information
Full Address
12, Deepwell Close
TW7 5EN
ISLEWORTH
Property Type
House
Mid-Terrace
Construction Age
England and Wales: 1983-1990
Floor Area
77.24 m²
3.0 total rooms
3.0 heated
Tenure
rental (private)
Efficiency Score
82 / 100
Potential: 82
CO₂ Emissions
1.8 tonnes/year
24 kg/m²
Energy Consumption
143 kWh/m²/year
Last Inspected
31 Mar 2011
rental (private)
About ISLEWORTH
ISLEWORTH is situated in Middlesex, South East. Properties in ISLEWORTH have an average EPC rating of D (score 64/100). This property performs better than most homes in the area. Heating costs are £263 below the ISLEWORTH average, offering good value. The TW7 postcode district contains over 12400 registered properties.
Location & Nearby Area
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Property Sale History
£420,000
27 July 2018
Type: Terraced
Annual Energy Costs
Heating
Boiler and radiators, mains gas
£311.0/yr
Hot Water
£99.0/yr
Lighting
100.0% low energy
£42.0/yr
Building Elements
Walls
Cavity wall, as built, insulated (assumed)
Roof
Pitched, 100 mm loft insulation
Windows
Fully double glazed
Floor
Solid, no insulation (assumed)
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 all 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
Marlborough Primary School
PrimaryLast inspected: Apr 2019
The Smallberry Green Primary School
PrimaryLast inspected: Feb 2023
The Green School for Girls
SecondaryIsleworth Town Primary School
PrimaryLast inspected: Feb 2023
The Green School for Boys
SecondaryLast inspected: Feb 2020
Isleworth and Syon School for Boys
SecondaryLast inspected: May 2022
St Mary's Catholic Primary School, Isleworth
PrimaryLast inspected: Jun 2022
Gumley House RC Convent School, FCJ
SecondaryLast inspected: Oct 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.