Energy Performance Certificate
30a, Thames Road
W4 3RJ
LONDON
Current
D
65
Potential
C
72
At a Glance
About This Property
This terraced flat is located in LONDON, W4 3RJ. The property offers 54.01m² (581 sq ft) of modest-sized living space with 3 habitable rooms. It is a characterful interwar or early 20th century home. With an EPC rating of D (65/100), this property is around the UK average for energy efficiency. With recommended improvements, it could achieve a C rating (72/100). 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. Single glazing is a significant source of heat loss, accounting for up to 25% of a home's heat escaping through windows. Upgrading to double glazing typically costs £400-£600 per window but improves thermal comfort and can reduce noise by up to 30dB. Estimated annual energy costs are £504, comprising £378 for heating, £78 for hot water, and £48 for lighting. The property produces 3.0 tonnes of CO2 per year, which is low for a UK home. The property last sold in October 2017 for £580,000, with 2 recorded sales in our database.
How Does 30a, Thames Road Compare?
With an energy efficiency score of 65/100, this LONDON property is around the national average for UK homes. Annual energy costs of £504 are approximately £1296 below the UK average of £1800, representing significant savings. With 54.01m² of space, this is a more compact property compared to the UK average of 87m². At 3.0 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 W4 postcode district.
How This Property Compares
vs UK Average
vs LONDON
vs W4
National Ranking: With an EPC score of 65/100, this property is average and performs better than approximately 45% of UK homes for energy efficiency.
Top 55% nationally
Energy Costs: £40/year less than the LONDON average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
With recommended improvements
Based on assessment dated 1 Sept 2009
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Property Information
Full Address
30a, Thames Road
W4 3RJ
LONDON
Property Type
Flat
Mid-Terrace
Construction Age
England and Wales: 1900-1929
Floor Area
54.01 m²
3.0 total rooms
3.0 heated
Tenure
owner-occupied
Efficiency Score
65 / 100
Potential: 72
CO₂ Emissions
3.0 tonnes/year
55 kg/m²
Energy Consumption
330 kWh/m²/year
Last Inspected
1 Sept 2009
marketed sale
About LONDON
LONDON is situated in West London, London. Properties in LONDON have an average EPC rating of D (score 64/100). The W4 postcode district contains over 17600 registered properties.
Location & Nearby Area
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Property Sale History
£580,000
2 October 2017
Type: Flat
vs previous sale
£580,000
23 September 2016
Type: Flat
Market Insights: This property has sold 2 times since 2015.
Annual Energy Costs
Heating
Boiler and radiators, mains gas
£378.0/yr
Save £43/yr
Hot Water
£78.0/yr
Save £15/yr
Lighting
0.0% low energy
£48.0/yr
Save £24/yr
Building Elements
Walls
Solid brick, as built, no insulation (assumed)
Roof
(another dwelling above)
Windows
Single glazed
Floor
Suspended, 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
No low energy lighting
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Your Savings Today
£550/yr
£5,500 over 10 years
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£550/yr
£5,500 over 10 years
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External Wall Insulation
Your walls are rated Very Poor. External insulation can dramatically reduce heat loss.
Double Glazing
Your windows are rated Very Poor. Modern A-rated double glazing reduces drafts and heat loss.
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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
Strand-on-the-Green Infant and Nursery School
PrimaryLast inspected: Dec 2022
Strand-on-the-Green Junior School
PrimaryLast inspected: Nov 2021
Grove Park Primary School
PrimaryLast inspected: Mar 2014
The King's Church of England Primary School
PrimaryLast inspected: Feb 2023
Green Dragon Primary School
PrimaryLast inspected: Oct 2022
Lionel Primary School
PrimaryLast inspected: Jul 2015
Kew Riverside Primary School
PrimaryLast inspected: Nov 2021
Belmont Primary School
PrimaryLast inspected: Feb 2022
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: 444 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.