Energy Performance Certificate
236, St. Mary's Road
N9 8NN
LONDON
Current
D
67
Potential
D
67
At a Glance
About This Property
This semi-detached house is located in LONDON, N9 8NN. The property offers 83.3mยฒ (897 sq ft) of good-sized living space with 5 habitable rooms. It is a characterful interwar or early 20th century home. With an EPC rating of D (67/100), this property is around the UK average for energy efficiency. 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 for improved thermal efficiency. The flat roof has poor insulation. Flat roof insulation is more complex but essential for preventing heat loss and condensation issues, typically costing ยฃ1,000-ยฃ3,000 depending on access and method. 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 ยฃ766, comprising ยฃ610 for heating, ยฃ102 for hot water, and ยฃ54 for lighting. The property produces 3.7 tonnes of CO2 per year, which is low for a UK home.
How Does 236, St. Mary's Road Compare?
With an energy efficiency score of 67/100, this LONDON property is around the national average for UK homes. Annual energy costs of ยฃ766 are approximately ยฃ1034 below the UK average of ยฃ1800, representing significant savings. At 3.7 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 N9 postcode district.
How This Property Compares
vs UK Average
vs LONDON
vs N9
National Ranking: With an EPC score of 67/100, this property is average and performs better than approximately 45% of UK homes for energy efficiency.
Top 55% nationally
Energy Costs: ยฃ222/year more than the LONDON average
Energy Efficiency Rating
๐ Official EPC Register DataCurrent Rating
Potential Rating
Based on assessment dated 12 Jan 2011
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Property Information
Full Address
236, St. Mary's Road
N9 8NN
LONDON
Property Type
House
Semi-Detached
Construction Age
England and Wales: 1930-1949
Floor Area
83.3 mยฒ
5.0 total rooms
5.0 heated
Tenure
owner-occupied
Efficiency Score
67 / 100
Potential: 67
COโ Emissions
3.7 tonnes/year
44 kg/mยฒ
Energy Consumption
263 kWh/mยฒ/year
Last Inspected
12 Jan 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). The N9 postcode district contains over 16100 registered properties. Built during the mid-20th century suburban expansion, this property reflects the housing developments common to the LONDON area.
Location & Nearby Area
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Annual Energy Costs
Heating
Boiler and radiators, mains gas
ยฃ610.0/yr
Hot Water
ยฃ102/yr
Lighting
80.0% low energy
ยฃ54.0/yr
Building Elements
Walls
Cavity wall, as built, partial insulation (assumed)
Roof
Flat, limited insulation (assumed)
Windows
Fully double 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
Low energy lighting in 80% of fixed outlets
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๐ 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 โNearby Schools
Within 3 miles of this property
Eldon Primary School
PrimaryLast inspected: Feb 2022
AIM Academy North London
SecondaryDelta Primary School
PrimaryLast inspected: Oct 2022
Houndsfield Primary School
PrimaryLast inspected: Jun 2023
St Edmund's Catholic Primary School
PrimaryLast inspected: Mar 2023
Woodpecker Hall Primary Academy
PrimaryLast inspected: Sept 2017
Galliard Primary School
PrimaryLast inspected: Jul 2023
St Matthew's CofE Primary School
PrimaryLast inspected: Jul 2023
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.