Energy Performance Certificate
21, Hartham Road
N7 9JQ
LONDON
Current
D
58
Potential
D
59
At a Glance
About This Property
This terraced house is located in LONDON, N7 9JQ. The property offers 218.45m² (2351 sq ft) of generously-sized living space with 7 habitable rooms. It is a characterful interwar or early 20th century home. With an EPC rating of D (58/100), this property is around the UK average for energy efficiency. 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. 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 £2060, comprising £1806 for heating, £94 for hot water, and £160 for lighting. The property produces 12.0 tonnes of CO2 per year, which is high for a UK home. The property last sold in May 2017 for £1,715,000.
How Does 21, Hartham Road Compare?
With an energy efficiency score of 58/100, this LONDON property is around the national average for UK homes. Annual energy costs of £2060 are close to the UK average. At 218.45m², this property is significantly larger than the average UK home (87m²). CO2 emissions of 12.0 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 N7 postcode district.
How This Property Compares
vs UK Average
vs LONDON
vs N7
National Ranking: With an EPC score of 58/100, this property is average and performs better than approximately 45% of UK homes for energy efficiency.
Top 55% nationally
Energy Costs: £1516/year more than the LONDON average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
Based on assessment dated 3 Nov 2011
Advertisement
Planning a Move? Get Expert Removals
We Got The Moves are professional removal specialists helping families and businesses move across the UK. Get a free, no-obligation quote today.
Ad • wegotthemove.co.uk
Property Information
Full Address
21, Hartham Road
N7 9JQ
LONDON
Property Type
House
Mid-Terrace
Construction Age
England and Wales: 1900-1929
Floor Area
218.45 m²
7.0 total rooms
7.0 heated
Tenure
owner-occupied
Efficiency Score
58 / 100
Potential: 59
CO₂ Emissions
12.0 tonnes/year
48 kg/m²
Energy Consumption
234 kWh/m²/year
Last Inspected
3 Nov 2011
marketed sale
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 £1262 above the local average, suggesting room for improvement. The N7 postcode district contains over 22100 registered properties.
Location & Nearby Area
Scroll to load map
Property Sale History
£1,715,000
26 May 2017
Type: Terraced
Annual Energy Costs
Heating
Boiler and radiators, mains gas
£1806.0/yr
Hot Water
£94.0/yr
Lighting
9.0% low energy
£160.0/yr
Save £76/yr
Building Elements
Walls
Solid brick, as built, no insulation (assumed)
Roof
Flat, insulated (assumed)
Windows
Partial double glazing
Floor
Suspended, no insulation (assumed)
Heating System
Boiler and radiators, mains gas
Main Fuel
mains gas (not community)
Lighting
Low energy lighting in 9% of fixed outlets
Showing quick wins with fastest payback first
💰 Save £1,550/year
With 3 selected upgrades
Future Energy Price Simulator
Drag to see how rising prices affect your savings
Your Savings Today
£1,550/yr
£15,500 over 10 years
Move slider to see
£1,550/yr
£15,500 over 10 years
Build Your Upgrade Plan
Sorted by best return on investment (quick wins first)
Solar Panels + Battery
Your house is ideal for solar. OVO: UK's #1 green energy supplier.
External Wall Insulation
Your walls are rated Very Poor. External insulation can dramatically reduce heat loss.
Double Glazing
Your windows are rated Poor. Modern A-rated double glazing reduces drafts and heat loss.
Get FREE Quotes in London
Compare prices from trusted local tradesmen - no obligation, 100% free
Trusted by thousands of UK homeowners
Advertisement
📊 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
Hungerford School
PrimaryLast inspected: Oct 2022
Sacred Heart Catholic Primary School
PrimaryLast inspected: Oct 2022
Brecknock Primary School
PrimaryLast inspected: Mar 2023
Robert Blair School and Children's Centre
PrimaryLast inspected: May 2019
Beacon High
SecondaryLast inspected: Nov 2022
Tufnell Park Primary School
PrimaryLast inspected: Oct 2022
St Mary Magdalene Academy
All-throughLast inspected: Jul 2023
Torriano Primary School
PrimaryLast inspected: Sept 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.
Getting Ripped Off by Your Local Tradesman in London?
Find out with a 100% FREE quote - costs nothing, no obligation
Area Safety
The surrounding area (1-mile radius) experiences higher crime levels
Most Common Incidents
April 2026Anti-social behaviour
417 incidents (27%)
violent crime
309 incidents (20%)
Shoplifting
215 incidents (14%)
Theft
103 incidents (7%)
Pickpocketing
99 incidents (6%)
About this data: Crime statistics show incidents reported during April 2026 within a 1-mile radius. Data from Police.uk, updated monthly.
More Properties in N7 9JQ
Showing properties in the same postcode. Click to view detailed EPC data for each property.
More Properties in the N7 Area
Explore nearby properties with EPC ratings in the N7 postcode district
All properties in N7 • Click to view detailed energy performance data
Related Property Guides
Based on this property's characteristics, these guides might help you:
How to Improve Your EPC Rating →
Step-by-step guide to upgrading from D-G to A-C ratings. Learn which improvements offer the best value.
Air Source Heat Pumps vs Gas Boilers →
Complete cost comparison, government grants up to £7,500, and real running costs for 2025.
Average Energy Bills by Property Type →
Compare your energy costs with UK averages. See if you're paying too much.
What is a Good EPC Rating? →
Understanding A-G ratings, what each means, and how UK properties compare.
Advertisement
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.