This Property
£1,189
estimated per year
UK Average
£1,800
per year
After Improvements
£1,065
potential per year
This F-rated property does not meet the Minimum Energy Efficiency Standards (MEES). Since April 2020, landlords cannot legally let properties rated F or G without a valid registered exemption. Fines of up to £30,000 apply. Immediate improvements are required to reach at least an E rating.
🏛️ BUS Grant
£7,500
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Get Solar Quote →With the right upgrades, this property could reach a E rating — saving up to £124 per year. Improvements are ranked by return on investment.
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£2,140/yr
£21,400 over 10 years
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£2,140/yr
£21,400 over 10 years
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Your roof is rated Poor. Cheapest upgrade with fastest payback — top up to 270mm.
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Your walls are rated Very Poor. External insulation can dramatically cut heat loss.
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Your windows are rated Very Poor. Modern A-rated double glazing reduces drafts and heat loss.
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This terraced house is located in NORTHAMPTON, NN1 1TF. The property offers 72.38m² (779 sq ft) of modest-sized living space with 3 habitable rooms. It is a characterful interwar or early 20th century home. Currently rated F (36/100) for energy efficiency, this property would benefit significantly from energy improvements. With recommended improvements, it could achieve a E rating (42/100). 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 £1189, comprising £1030 for heating, £92 for hot water, and £67 for lighting. The property produces 6.6 tonnes of CO2 per year, which is above average for a UK home. IMPORTANT FOR LANDLORDS: With an EPC rating of F, this property does not meet the Minimum Energy Efficiency Standards (MEES). Since April 2020, landlords cannot legally let properties rated F or G without registering a valid exemption. Penalties for non-compliance can reach up to £30,000. Immediate improvements are required to bring the property to at least an E rating.
Current Rating
Achievable Rating
With recommended improvements
Based on assessment dated 10 Jun 2010
The EPC assessor rated each element of this property. Poor and average ratings are the biggest opportunities for improvement.
🧱 Walls
Solid brick, as built, no insulation (assumed)
🏗️ Roof
Pitched, 25 mm loft insulation
🪟 Windows
Single glazed
📦 Floor
Suspended, no insulation (assumed)
🔥 Heating
Room heaters, mains gas
🚿 Hot Water
NaN
💡 Lighting
0.0% low energy — No low energy lighting
Full Address
28, Tanner Street
NN1 1TF
NORTHAMPTON
Property Type
House
Mid-Terrace
Construction Age
England and Wales: 1930-1949
Floor Area
72.38 m²
3.0 total rooms
CO₂ Emissions
6.6 tonnes/year
102 kg/m²
Energy Consumption
595 kWh/m²/year
NORTHAMPTON properties with F ratings are among the least energy efficient in the area. Properties in this postcode district (NN1) that have undergone improvement works have seen significant increases in EPC ratings and corresponding reductions in energy bills.
🔥 Heating
Room heaters, mains gas
£1030 /yr
Save £90/yr with improvements
🚿 Hot Water
£92 /yr
💡 Lighting
0.0% low energy
£67 /yr
Save £34/yr with improvements
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Average download speed: 69 Mbps
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.