Home Checkup

Energy Performance Certificate

21, Holley Road

W3 7TR

LONDON

Current

D

66

Potential

B

86

At a Glance

About This Property

This semi-detached flat is located in LONDON, W3 7TR. The property offers 28m² (301 sq ft) of compact living space with 1 habitable room. It is a post-war property from the mid-20th century. With an EPC rating of D (66/100), this property is around the UK average for energy efficiency. With recommended improvements, it could achieve a B rating (86/100). 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 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 £546, comprising £167 for heating, £351 for hot water, and £28 for lighting. The property produces 2.7 tonnes of CO2 per year, which is low for a UK home. The property last sold in September 2021 for £200,000.

How Does 21, Holley Road Compare?

With an energy efficiency score of 66/100, this LONDON property is around the national average for UK homes. Annual energy costs of £546 are approximately £1254 below the UK average of £1800, representing significant savings. With 28m² of space, this is a more compact property compared to the UK average of 87m². 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 W3 postcode district.

📊

How This Property Compares

🇬🇧

vs UK Average

This property66
Average60
+10% better
🏘️

vs LONDON

This property66
Average64
+3% better
📮

vs W3

This property66
Average66
At average

National Ranking: With an EPC score of 66/100, this property is average and performs better than approximately 45% of UK homes for energy efficiency.

Top 55% nationally

Energy Costs: £2/year more than the LONDON average

Energy Efficiency Rating

📊 Official EPC Register Data
A92-100
B81-91
Potential
C69-80
D55-68
Current
E39-54
F21-38
G1-20

Current Rating

D(66 points)

Potential Rating

B(86 points)

With recommended improvements

Based on assessment dated 20 Feb 2020

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Property Information

📍

Full Address

21, Holley Road

W3 7TR

LONDON

🏠

Property Type

Flat

Semi-Detached

📅

Construction Age

England and Wales: 1967-1975

📐

Floor Area

28.0

1.0 total rooms

1.0 heated

🔑

Tenure

unknown

Efficiency Score

66 / 100

Potential: 86

🌍

CO₂ Emissions

2.7 tonnes/year

96 kg/m²

📊

Energy Consumption

566 kWh/m²/year

🔍

Last Inspected

20 Feb 2020

non marketed sale

📍

About LONDON

LONDON is situated in West London, London. Properties in LONDON have an average EPC rating of D (score 64/100). Heating costs are £377 below the LONDON average, offering good value. The W3 postcode district contains over 26900 registered properties.

🗺️

Location & Nearby Area

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💷

Property Sale History

£200,000

28 September 2021

Type: Flat

Annual Energy Costs

🔥

Heating

Electric storage heaters

£167.0/yr

Save £118/yr

🚿

Hot Water

£351.0/yr

Save £219/yr

💡

Lighting

100.0% low energy

£28.0/yr

Building Elements

🧱

Walls

Solid brick, as built, no insulation (assumed)

Very Poor
🏗️

Roof

(another dwelling above)

🪟

Windows

Single glazed

Very Poor
📦

Floor

(another dwelling below)

NO DATA!
🔥

Heating System

Electric storage heaters

Average

Main Fuel

electricity (not community)

💡

Lighting

Low energy lighting in all fixed outlets

Very Good
My Priority Is...

Showing quick wins with fastest payback first

💰 Save £887/year

With 3 selected upgrades

⚡ Bill-Free Living(inc. solar export income)
Journey to A
DA
19,500
Property Value Boost
Investment
£22,500
Payback
~25 yrs
Current Costs
£546/yr
🔮

Future Energy Price Simulator

Drag to see how rising prices affect your savings

0%
Today's Prices
Today+10%+20%+30%+40%+50%

Your Savings Today

£887/yr

£8,870 over 10 years

Move slider to see

£887/yr

£8,870 over 10 years

Build Your Upgrade Plan

Sorted by best return on investment (quick wins first)

1
🧱

External Wall Insulation

Your walls are rated Very Poor. External insulation can dramatically reduce heat loss.

Save £400/yrPayback: ~30 years+8 EPC points
£12,000
Cost
2
🌱

Air Source Heat Pump

Ultra-efficient heating with £7,500 government grant. OVO: MCS certified installation.

Save £337/yrPayback: ~10 years+10 EPC points
🏛️ £7,500 BUS Grant Available
£3,500
£11,000
Cost
3
🪟

Double Glazing

Your windows are rated Very Poor. Modern A-rated double glazing reduces drafts and heat loss.

Save £150/yrPayback: ~47 years+2 EPC points
£7,000
Cost

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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

Wendell Park Primary School

Primary
📍0.1 miles awayW12 9LB

Last inspected: Nov 2022

Good

Good Shepherd RC Primary School

Primary
📍0.3 miles awayW12 9BY

Last inspected: Mar 2014

Outstanding

Southfield Primary School

Primary
📍0.3 miles awayW4 1BD

Last inspected: May 2023

Outstanding

Ark Byron Primary Academy

Primary
📍0.5 miles awayW3 7JT

Last inspected: Nov 2018

Good

East Acton Primary School

Primary
📍0.5 miles awayW3 7HA

Last inspected: Mar 2022

Good

Greenside Primary School

Primary
📍0.6 miles awayW12 9PT

Last inspected: Oct 2023

Good

Ark Priory Primary Academy

Primary
📍0.7 miles awayW3 8NR

Last inspected: Jun 2015

Outstanding

Hammersmith Academy

Secondary
📍0.7 miles awayW12 9JD

Last inspected: Jan 2022

Good

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.

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Broadband & Connectivity

🚀Ultrafast Broadband

Average download speed: 500 Mbps

✓ Fibre Available
⬇️

Download Speed

Minimum:30 Mbps
Average:500 Mbps
Maximum:300 Mbps
⬆️

Upload Speed

Minimum:5 Mbps
Average:75 Mbps
Maximum:50 Mbps

Available Providers

BTSkyTalkTalkPlusnetVodafone

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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🛡️

Area Safety

Higher Crime829 incidents/month

The surrounding area (1-mile radius) experiences higher crime levels

Most Common Incidents

April 2026
🔊

Anti-social behaviour

213 incidents (26%)

📊

violent crime

177 incidents (21%)

🚗

Vehicle crime

99 incidents (12%)

🛒

Shoplifting

89 incidents (11%)

👜

Theft

66 incidents (8%)

About this data: Crime statistics show incidents reported during April 2026 within a 1-mile radius. Data from Police.uk, updated monthly.

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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.

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