Home Checkup

Energy Performance Certificate

45, Onslow Gardens

N10 3JY

LONDON

Current

D

61

Potential

C

76

At a Glance

About This Property

This terraced house is located in LONDON, N10 3JY. The property offers 283mยฒ (3046 sq ft) of generously-sized living space with 11 habitable rooms. It is a period property with Victorian or earlier origins. With an EPC rating of D (61/100), this property is around the UK average for energy efficiency. With recommended improvements, it could achieve a C rating (76/100). 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 ยฃ8,000-ยฃ14,000 but can reduce heat loss by up to 35% and improve your EPC rating by 1-2 bands. The pitched roof lacks adequate insulation. Topping up loft insulation to 270mm (the recommended depth) typically costs ยฃ300-ยฃ500 and could save ยฃ150-ยฃ250 annually, with the investment often paying for itself within 2-3 years. 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 ยฃ400-ยฃ600 per window but improves thermal comfort and can reduce noise by up to 30dB. Estimated annual energy costs are ยฃ2201, comprising ยฃ1902 for heating, ยฃ108 for hot water, and ยฃ191 for lighting. The property produces 11.0 tonnes of CO2 per year, which is high for a UK home. The property last sold in June 2020 for ยฃ2,175,000.

How Does 45, Onslow Gardens Compare?

With an energy efficiency score of 61/100, this LONDON property is around the national average for UK homes. Annual energy costs of ยฃ2201 are close to the UK average. At 283mยฒ, this property is significantly larger than the average UK home (87mยฒ). CO2 emissions of 11.0 tonnes/year are above average. Energy improvements could significantly reduce the property's carbon footprint.

Data source: Comparisons based on UK national statistics from the Department for Energy Security and Net Zero.This property is located in the N10 postcode district.

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How This Property Compares

๐Ÿ‡ฌ๐Ÿ‡ง

vs UK Average

This property61
Average60
+2% better
๐Ÿ˜๏ธ

vs LONDON

This property61
Average64
-5% below
๐Ÿ“ฎ

vs N10

This property61
Average58
+5% better

National Ranking: With an EPC score of 61/100, this property is average and performs better than approximately 45% of UK homes for energy efficiency.

Top 55% nationally

Energy Costs: ยฃ1657/year more than the LONDON average

Energy Efficiency Rating

๐Ÿ“Š Official EPC Register Data
A92-100
B81-91
C69-80
Potential
D55-68
Current
E39-54
F21-38
G1-20

Current Rating

D(61 points)

Potential Rating

C(76 points)

With recommended improvements

Based on assessment dated 17 Oct 2019

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Property Information

๐Ÿ“

Full Address

45, Onslow Gardens

N10 3JY

LONDON

๐Ÿ 

Property Type

House

Mid-Terrace

๐Ÿ“…

Construction Age

England and Wales: before 1900

๐Ÿ“

Floor Area

283.0 mยฒ

11.0 total rooms

11.0 heated

๐Ÿ”‘

Tenure

owner-occupied

โšก

Efficiency Score

61 / 100

Potential: 76

๐ŸŒ

COโ‚‚ Emissions

11.0 tonnes/year

39 kg/mยฒ

๐Ÿ“Š

Energy Consumption

220 kWh/mยฒ/year

๐Ÿ”

Last Inspected

17 Oct 2019

marketed sale

๐Ÿ“

About LONDON

LONDON is situated in North London, London. Properties in LONDON have an average EPC rating of D (score 64/100). Heating costs are ยฃ1358 above the local average, suggesting room for improvement. The N10 postcode district contains over 9900 registered properties. Like many LONDON properties, this home features period architecture with character typical of Victorian-era construction.

๐Ÿ—บ๏ธ

Location & Nearby Area

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๐Ÿ’ท

Property Sale History

ยฃ2,175,000

17 June 2020

Type: Terraced

Annual Energy Costs

๐Ÿ”ฅ

Heating

Boiler and radiators, mains gas

ยฃ1902.0/yr

Save ยฃ537/yr

๐Ÿšฟ

Hot Water

ยฃ108.0/yr

๐Ÿ’ก

Lighting

50.0% low energy

ยฃ191.0/yr

Save ยฃ61/yr

Building Elements

๐Ÿงฑ

Walls

Solid brick, as built, no insulation (assumed)

Very Poor
๐Ÿ—๏ธ

Roof

Pitched, no insulation (assumed)

Very Poor
๐ŸชŸ

Windows

Single glazed

Very Poor
๐Ÿ“ฆ

Floor

Suspended, no insulation (assumed)

NO DATA!
๐Ÿ”ฅ

Heating System

Boiler and radiators, mains gas

Good
โ›ฝ

Main Fuel

mains gas (not community)

๐Ÿ’ก

Lighting

Low energy lighting in 50% of fixed outlets

Good
My Priority Is...

Showing quick wins with fastest payback first

๐Ÿ’ฐ Save ยฃ2,348/year

With 5 selected upgrades

โšก Bill-Free Living(inc. solar export income)
Journey to A
Dโ†’A
+ยฃ19,500
Property Value Boost
Investment
ยฃ34,500
Payback
~15 yrs
Current Costs
ยฃ2,201/yr
๐Ÿ”ฎ

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

ยฃ2,348/yr

ยฃ23,480 over 10 years

Move slider to see

ยฃ2,348/yr

ยฃ23,480 over 10 years

Build Your Upgrade Plan

Sorted by best return on investment (quick wins first)

1
๐Ÿ—๏ธ

Loft Insulation

Your roof is rated Very Poor. Top up to 270mm for best results.

Save ยฃ200/yrPayback: ~5 years+3 EPC points
ยฃ1,000
Cost
2
โ˜€๏ธ

Solar Panels + Battery

Your house is ideal for solar. OVO: UK's #1 green energy supplier.

Save ยฃ1000/yrPayback: ~11 years+7 EPC points
ยฃ11,000
Cost
3
๐ŸŒฑ

Air Source Heat Pump

Ultra-efficient heating with ยฃ7,500 government grant. OVO: MCS certified installation.

Save ยฃ598/yrPayback: ~6 years+10 EPC points
๐Ÿ›๏ธ ยฃ7,500 BUS Grant Available
ยฃ3,500
ยฃ11,000
Cost
4
๐Ÿงฑ

External Wall Insulation

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

Save ยฃ400/yrPayback: ~30 years+8 EPC points
ยฃ12,000
Cost
5
๐ŸชŸ

Double Glazing

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

Save ยฃ150/yrPayback: ~47 years+2 EPC points
ยฃ7,000
Cost

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๐Ÿ“Š 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 โ†’
๐Ÿซ

Nearby Schools

Within 3 miles of this property

St James Church of England Primary School

Primary
๐Ÿ“0.3 miles awayโ€ขN10 3JA

Last inspected: Mar 2022

โœ“Good

Highgate Wood Secondary School

Secondary
๐Ÿ“0.5 miles awayโ€ขN8 8RN

Last inspected: Nov 2021

โœ“Good

Tetherdown Primary School

Primary
๐Ÿ“0.5 miles awayโ€ขN10 3BP

Last inspected: Sept 2022

โœ“Good

Muswell Hill Primary School

Primary
๐Ÿ“0.5 miles awayโ€ขN10 3ST

Last inspected: Dec 2021

โœ“Good

Highgate Primary School

Primary
๐Ÿ“0.6 miles awayโ€ขN6 4ED

Last inspected: Mar 2023

โœ“Good

Fortismere School

Secondary
๐Ÿ“0.7 miles awayโ€ขN10 1NE

Last inspected: Apr 2022

โœ“Good

Our Lady of Muswell Catholic Primary School

Primary
๐Ÿ“0.8 miles awayโ€ขN10 1PS

Last inspected: Nov 2017

โญOutstanding

St Michael's CofE Voluntary Aided Primary School

Primary
๐Ÿ“0.8 miles awayโ€ขN6 4BG

Last inspected: Jun 2023

โญOutstanding

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.

๐ŸŒ

Broadband & Connectivity

๐Ÿš€Ultrafast Broadband

Average download speed: 500 Mbps

โšก Gigabit Available
โฌ‡๏ธ

Download Speed

Minimum:30 Mbps
Average:500 Mbps
Maximum:1000 Mbps
โฌ†๏ธ

Upload Speed

Minimum:50 Mbps
Average:200 Mbps
Maximum:200 Mbps

Available Providers

Virgin MediaHyperopticBTSkyTalkTalk

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.

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