Energy Performance Certificate
12 Deanfield Close
SL7 3AQ
MARLOW
Current
D
65
Potential
B
84
At a Glance
About This Property
This semi-detached bungalow is located in MARLOW, SL7 3AQ. The property offers 42m² (452 sq ft) of compact living space with 2 habitable rooms. It is a post-war property from the mid-20th century. With an EPC rating of D (65/100), this property is around the UK average for energy efficiency. With recommended improvements, it could achieve a B rating (84/100). The gas central heating system has good efficiency, indicating a relatively modern, well-maintained boiler. The property has good loft insulation, though topping up to the recommended 270mm depth could provide additional energy savings. 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 £838, comprising £542 for heating, £233 for hot water, and £63 for lighting. The property produces 1.6 tonnes of CO2 per year, which is very low for a UK home. For landlords: This rental property with a D rating is positioned above the current minimum standard. With proposed changes to require a C rating by 2028, modest improvements now could future-proof your compliance.
How Does 12 Deanfield Close Compare?
With an energy efficiency score of 65/100, this MARLOW property is around the national average for UK homes. Annual energy costs of £838 are approximately £962 below the UK average of £1800, representing significant savings. With 42m² of space, this is a more compact property compared to the UK average of 87m². CO2 emissions of 1.6 tonnes/year are less than half the UK household average, making this an environmentally friendly choice.
Data source: Comparisons based on UK national statistics from the Department for Energy Security and Net Zero.This property is located in the SL7 postcode district.
How This Property Compares
vs UK Average
vs MARLOW
vs SL7
National Ranking: With an EPC score of 65/100, this property is average and performs better than approximately 45% of UK homes for energy efficiency.
Top 55% nationally
Energy Costs: £66/year less than the MARLOW average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
With recommended improvements
Based on assessment dated 23 Oct 2025
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Property Information
Full Address
12 Deanfield Close
SL7 3AQ
MARLOW
Property Type
Bungalow
Semi-Detached
Construction Age
England and Wales: 1950-1966
Floor Area
42.0 m²
2.0 total rooms
2.0 heated
Tenure
Rented (social)
Efficiency Score
65 / 100
Potential: 84
CO₂ Emissions
1.6 tonnes/year
38 kg/m²
Energy Consumption
223 kWh/m²/year
Last Inspected
23 Oct 2025
not sale or rental
About MARLOW
MARLOW is situated in Berkshire, South East. Properties in MARLOW have an average EPC rating of D (score 59/100). Heating costs are £362 below the MARLOW average, offering good value. The SL7 postcode district contains over 7000 registered properties. Built during the mid-20th century suburban expansion, this property reflects the housing developments common to the MARLOW area.
Location & Nearby Area
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Annual Energy Costs
Heating
Boiler and radiators, mains gas
£542.0/yr
Save £65/yr
Hot Water
£233.0/yr
Lighting
50.0% low energy
£63.0/yr
Save £32/yr
Building Elements
Walls
Cavity wall, filled cavity
Roof
Pitched, 225 mm loft insulation
Windows
Fully double glazed
Floor
Suspended, no insulation (assumed)
Heating System
Boiler and radiators, mains gas
Main Fuel
mains gas (not community)
Lighting
Below average lighting efficiency
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View UK Property Insights →Nearby Schools
Within 3 miles of this property
Holy Trinity Church of England (Aided) School
PrimaryLast inspected: May 2013
St Peter's Catholic Primary School
PrimaryMarlow Church of England Infant School
PrimaryLast inspected: Mar 2011
Sir William Borlase's Grammar School
SecondaryLast inspected: Jun 2012
Foxes Piece School
PrimaryLast inspected: Nov 2022
Spinfield School
PrimaryLast inspected: Dec 2019
Great Marlow School
SecondaryLast inspected: Nov 2022
Burford School
PrimaryLast inspected: May 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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Area Safety
Crime levels are moderate in the surrounding area (1-mile radius)
Most Common Incidents
April 2026violent crime
27 incidents (31%)
Shoplifting
14 incidents (16%)
Anti-social behaviour
12 incidents (14%)
Theft
10 incidents (12%)
Criminal damage
9 incidents (10%)
About this data: Crime statistics show incidents reported during April 2026 within a 1-mile radius. Data from Police.uk, updated monthly.
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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.