This Property
£4,234
estimated per year
UK Average
£1,800
per year
After Improvements
£938
potential per year
This property costs approximately £2,434 more per year than the UK average. Recommended improvements could save up to £3,296 annually.
🏛️ 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.
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Save ~20%
Zero VAT on heat pumps, insulation, and solar panels until 2027. Applies automatically.
Get Solar Quote →With the right upgrades, this property could reach a C rating — saving up to £3,296 per year. Improvements are ranked by return on investment.
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£5,082/yr
£50,820 over 10 years
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£5,082/yr
£50,820 over 10 years
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Ultra-efficient heating with £7,500 government grant. OVO: MCS certified installation.
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Your walls are rated Poor. Cavity fill is quick and cost-effective.
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This detached bungalow is located in MATTISHALL, NR20 3NU. The property offers 125m² (1346 sq ft) of spacious living space with 8 habitable rooms. It is a post-war property from the mid-20th century. Currently rated G (1/100) for energy efficiency, this property would benefit significantly from energy improvements. With recommended improvements, it could achieve a C rating (72/100). The oil-fired central heating has poor efficiency. Oil boilers are more expensive to run than gas and have higher carbon emissions. Consider switching to a heat pump (eligible for £7,500 BUS grant) for significant long-term savings. The walls feature cavity wall insulation for improved thermal efficiency. The loft insulation is rated very good, meeting or exceeding the recommended 270mm depth for optimal thermal performance. Double glazing is installed throughout the property, providing good thermal and acoustic insulation. Estimated annual energy costs are £4234, comprising £1266 for heating, £2843 for hot water, and £125 for lighting. The property produces 9.1 tonnes of CO2 per year, which is high for a UK home.
Current Rating
Achievable Rating
With recommended improvements
Based on assessment dated 6 May 2021
The EPC assessor rated each element of this property. Poor and average ratings are the biggest opportunities for improvement.
🧱 Walls
Cavity wall, as built, no insulation (assumed)
🏗️ Roof
Pitched, 300 mm loft insulation
🪟 Windows
Fully double glazed
📦 Floor
Suspended, no insulation (assumed)
🔥 Heating
Boiler and radiators, oil
🚿 Hot Water
NaN
💡 Lighting
58.0% low energy — Low energy lighting in 58% of fixed outlets
Full Address
GREENTOP BUNGALOW
115 DEREHAM ROAD
NR20 3NU
MATTISHALL
Property Type
Bungalow
Detached
Construction Age
England and Wales: 1967-1975
Floor Area
125.0 m²
8.0 total rooms
CO₂ Emissions
9.1 tonnes/year
73 kg/m²
Energy Consumption
313 kWh/m²/year
MATTISHALL properties with G ratings are among the least energy efficient in the area. Properties in this postcode district (NR20) that have undergone improvement works have seen significant increases in EPC ratings and corresponding reductions in energy bills.
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🔥 Heating
Boiler and radiators, oil
£1266 /yr
Save £536/yr with improvements
🚿 Hot Water
£2843 /yr
Save £2760/yr with improvements
💡 Lighting
58.0% low energy
£125 /yr
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Within 3 miles of this property
Last inspected: Sept 2021
Last inspected: Feb 2019
Last inspected: Jan 2020
Last inspected: Feb 2020
Last inspected: Jan 2020
Last inspected: Feb 2010
Last inspected: Jan 2020
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.
Average download speed: 165 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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The surrounding area (1-mile radius) experiences very low crime levels
violent crime
3 incidents (50%)
Anti-social behaviour
1 incidents (17%)
Criminal damage
1 incidents (17%)
Drugs
1 incidents (17%)
About this data: Crime statistics show incidents reported during April 2026 within a 1-mile radius. Data from Police.uk, updated monthly.
Showing properties in the same postcode. Click to view detailed EPC data for each property.
Explore nearby properties with EPC ratings in the NR20 postcode district
All properties in NR20 • Click to view detailed energy performance data
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.