Energy Performance Certificate
23, Jack Cornwell Street
E12 5NN
LONDON
Current
F
29
Potential
C
72
This F-Rated Property Costs Significantly More to Run
This Property
£1,614
estimated per year
UK Average
£1,800
per year
After Improvements
£610
potential per year
💰 Government Grants Available for This Property
🏛️ BUS Grant
£7,500
Off the cost of an air source heat pump. Available now — limited places.
Check Eligibility →🏠 ECO4 Scheme
Free
Free insulation & heating upgrades for eligible households on benefits or low income.
Check Eligibility →📉 0% VAT
Save ~20%
Zero VAT on heat pumps, insulation, and solar panels until 2027. Applies automatically.
Get Solar Quote →How to Improve This F-Rated Property
With the right upgrades, this property could reach a C rating — saving up to £1,004 per year. Improvements are ranked by return on investment.
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💰 Save £1,818/year
With 3 selected upgrades
Future Energy Price Simulator
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Your Savings Today
£1,818/yr
£18,180 over 10 years
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£1,818/yr
£18,180 over 10 years
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Loft Insulation
Your roof is rated Very Poor. Cheapest upgrade with fastest payback — top up to 270mm.
New A-Rated Boiler
Your heating is rated Very Poor. Compare local boiler installers.
Air Source Heat Pump
Ultra-efficient heating with £7,500 government grant. OVO: MCS certified installation.
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Why Does This Property Have a F Rating?
This terraced maisonette is located in LONDON, E12 5NN. The property offers 86m² (926 sq ft) of good-sized living space with 5 habitable rooms. It is a post-war property from the mid-20th century. Currently rated F (29/100) for energy efficiency, this property would benefit significantly from energy improvements. With recommended improvements, it could achieve a C rating (72/100). The pitched roof lacks adequate insulation. Topping up loft insulation to 270mm (the recommended depth) typically costs £300-£500 and could save £150-£250 annually, with the investment often paying for itself within 2-3 years. 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 £1614, comprising £1082 for heating, £457 for hot water, and £75 for lighting. The property produces 6.3 tonnes of CO2 per year, which is above average for a UK home.
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Achievable Rating
With recommended improvements
Based on assessment dated 16 May 2013
What's Causing the Poor Energy Rating?
The EPC assessor rated each element of this property. Poor and average ratings are the biggest opportunities for improvement.
🧱 Walls
Cavity wall, filled cavity
🏗️ Roof
Pitched, no insulation (assumed)
🪟 Windows
Fully double glazed
📦 Floor
(other premises below)
🔥 Heating
No system present: electric heaters assumed
🚿 Hot Water
NaN
💡 Lighting
56.0% low energy — Low energy lighting in 56% of fixed outlets
Property Information
Full Address
23, Jack Cornwell Street
E12 5NN
LONDON
Property Type
Maisonette
Mid-Terrace
Construction Age
England and Wales: 1950-1966
Floor Area
86.0 m²
5.0 total rooms
CO₂ Emissions
6.3 tonnes/year
73 kg/m²
Energy Consumption
414 kWh/m²/year
F-Rated Properties in LONDON
LONDON properties with F ratings are among the least energy efficient in the area. Properties in this postcode district (E12) that have undergone improvement works have seen significant increases in EPC ratings and corresponding reductions in energy bills.
Location & Nearby Area
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Annual Running Costs — Current vs Potential
🔥 Heating
No system present: electric heaters assumed
£1082 /yr
Save £614/yr with improvements
🚿 Hot Water
£457 /yr
Save £390/yr with improvements
💡 Lighting
56.0% low energy
£75 /yr
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Nearby Schools
Within 3 miles of this property
Dersingham Primary School
PrimaryLast inspected: Jun 2019
Sheringham Primary School
PrimarySt Winefride's RC Primary School
PrimaryLast inspected: Sept 2023
Sir John Heron Primary School
PrimaryLast inspected: May 2022
Little Ilford School
SecondaryLast inspected: Nov 2022
Uphall Primary School
PrimaryLast inspected: Jun 2022
Cleveland Road Primary School
PrimaryLast inspected: Sept 2018
Essex Primary School
PrimaryLast inspected: Mar 2019
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.
Data Sources: UK Energy Performance Certificate Register, HM Land Registry Price Paid Data, Police.uk crime statistics.
Public sector information licensed under the Open Government Licence v3.0.