Energy Performance Certificate
23, Dormer Close
HP21 8UY
AYLESBURY
Current
D
62
Potential
C
73
At a Glance
About This Property
This terraced house is located in AYLESBURY, HP21 8UY. The property offers 67.2m² (723 sq ft) of modest-sized living space with 4 habitable rooms. It is built during the 1980s construction period. With an EPC rating of D (62/100), this property is around the UK average for energy efficiency. With recommended improvements, it could achieve a C rating (73/100). The gas central heating system has good efficiency, indicating a relatively modern, well-maintained boiler. The walls feature cavity wall insulation with good efficiency ratings, providing solid thermal performance. 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 £726, comprising £510 for heating, £162 for hot water, and £54 for lighting. The property produces 3.7 tonnes of CO2 per year, which is low for a UK home. The property last sold in December 2019 for £262,500, with 2 recorded sales in our database.
How Does 23, Dormer Close Compare?
With an energy efficiency score of 62/100, this AYLESBURY property is around the national average for UK homes. Annual energy costs of £726 are approximately £1074 below the UK average of £1800, 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 HP21 postcode district.
How This Property Compares
vs UK Average
vs AYLESBURY
vs HP21
National Ranking: With an EPC score of 62/100, this property is average and performs better than approximately 45% of UK homes for energy efficiency.
Top 55% nationally
Energy Costs: £102/year more than the AYLESBURY average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
With recommended improvements
Based on assessment dated 15 Apr 2010
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Property Information
Full Address
23, Dormer Close
HP21 8UY
AYLESBURY
Property Type
House
End-Terrace
Construction Age
England and Wales: 1983-1990
Floor Area
67.2 m²
4.0 total rooms
4.0 heated
Tenure
owner-occupied
Efficiency Score
62 / 100
Potential: 73
CO₂ Emissions
3.7 tonnes/year
54 kg/m²
Energy Consumption
325 kWh/m²/year
Last Inspected
15 Apr 2010
marketed sale
About AYLESBURY
AYLESBURY is situated in Buckinghamshire, South East. Properties in AYLESBURY have an average EPC rating of D (score 65/100). The HP21 postcode district contains over 11000 registered properties.
Location & Nearby Area
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Property Sale History
£262,500
19 December 2019
Type: Terraced
vs previous sale
£222,000
9 October 2015
Type: Terraced
Market Insights: This property has sold 2 times since 2015. Value has increased by 18.2% over this period.
Annual Energy Costs
Heating
Boiler and radiators, mains gas
£510.0/yr
Save £120/yr
Hot Water
£162.0/yr
Save £43/yr
Lighting
60.0% low energy
£54.0/yr
Save £15/yr
Building Elements
Walls
Cavity wall, as built, insulated (assumed)
Roof
Pitched, 100 mm loft insulation
Windows
Fully double glazed
Floor
Solid, 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 60% of fixed outlets
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£1,178/yr
£11,780 over 10 years
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£1,178/yr
£11,780 over 10 years
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See how this property compares to national averages. Explore energy efficiency trends, top-rated areas, and comprehensive UK property statistics.
View UK Property Insights →Nearby Schools
Within 3 miles of this property
Aylesbury UTC
SecondaryLast inspected: Mar 2022
Sir Henry Floyd Grammar School
SecondaryLast inspected: Dec 2022
Oak Green School
PrimaryLast inspected: Feb 2023
Bearbrook Combined School
PrimaryAshmead Combined School
PrimaryLast inspected: Jan 2020
St Mary's Church of England School
PrimaryThe Mandeville School
SecondaryHaydon Abbey School and Pre-School
PrimaryLast inspected: Jul 2018
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: 366 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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Related Property Guides
Based on this property's characteristics, these guides might help you:
How to Improve Your EPC Rating →
Step-by-step guide to upgrading from D-G to A-C ratings. Learn which improvements offer the best value.
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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.