Energy Performance Certificate
21 Barham Avenue, Elstree
WD6 3PW
BOREHAMWOOD
Current
B
89
Potential
B
91
At a Glance
About This Property
This detached house is located in BOREHAMWOOD, WD6 3PW. The property offers 437m² (4704 sq ft) of generously-sized living space. With an EPC rating of B (89/100), this property is highly energy efficient, placing it in the top tier of UK homes. This property benefits from a air source heat pump system, which can deliver 3-4 units of heat for every unit of electricity used. Heat pumps are eligible for the £7,500 Boiler Upgrade Scheme grant, making them increasingly popular for UK homes seeking to reduce carbon emissions. Estimated annual energy costs are £1384, comprising £969 for heating, £326 for hot water, and £89 for lighting. The property produces 0.8 tonnes of CO2 per year, which is very low for a UK home. The property last sold in February 2024 for £1,430,000, with 2 recorded sales in our database.
How Does 21 Barham Avenue Compare?
With an energy efficiency score of 89/100, this BOREHAMWOOD property is excellent, ranking in the top 15% nationally. At £1384 per year, energy costs are below the national average of £1800. At 437m², this property is significantly larger than the average UK home (87m²). CO2 emissions of 0.8 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 WD6 postcode district.
How This Property Compares
vs UK Average
vs BOREHAMWOOD
vs WD6
National Ranking: With an EPC score of 89/100, this property is excellent and performs better than approximately 85% of UK homes for energy efficiency.
Top 15% nationally
Energy Costs: £803/year more than the BOREHAMWOOD average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
Based on assessment dated 26 Feb 2025
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Property Information
Full Address
21 Barham Avenue
Elstree
WD6 3PW
BOREHAMWOOD
Property Type
House
Detached
Construction Age
2024
Floor Area
437.0 m²
NaN total rooms
NaN heated
Tenure
Not defined - use in the case of a new dwelling for which the intended tenure in not known. It is not to be used for an existing dwelling
Efficiency Score
89 / 100
Potential: 91
CO₂ Emissions
0.8 tonnes/year
1 kg/m²
Energy Consumption
19 kWh/m²/year
Last Inspected
26 Feb 2025
new dwelling
About BOREHAMWOOD
BOREHAMWOOD is situated in Hertfordshire, East of England. Properties in BOREHAMWOOD have an average EPC rating of D (score 65/100). This property performs better than most homes in the area. Heating costs are £388 above the local average, suggesting room for improvement. The WD6 postcode district contains over 12700 registered properties.
Location & Nearby Area
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Property Sale History
£1,430,000
23 February 2024
Type: Detached
vs previous sale
£1,675,000
3 November 2021
Type: Detached
Market Insights: This property has sold 2 times since 2015.
Annual Energy Costs
Heating
Air source heat pump, underfloor, electric
£969.0/yr
Hot Water
£326.0/yr
Lighting
100.0% low energy
£89.0/yr
Building Elements
Walls
Average thermal transmittance 0.16 W/m-¦K
Roof
Average thermal transmittance 0.13 W/m-¦K
Windows
High performance glazing
Floor
Average thermal transmittance 0.11 W/m-¦K
Heating System
Air source heat pump, underfloor, electric
Main Fuel
Electricity: electricity, unspecified tariff
Lighting
Excelent lighting efficiency
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📊 Compare with UK-Wide Property Data
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
Meryfield Primary School
PrimaryLast inspected: May 2022
St Nicholas Elstree Church of England VA Primary School
PrimaryLast inspected: Oct 2023
St Teresa Catholic Primary School
PrimaryLast inspected: Jan 2020
Yavneh College
SecondarySummerswood Primary School
PrimaryLast inspected: Dec 2022
Yavneh Primary School
PrimaryLast inspected: Jun 2019
Cowley Hill School
PrimaryLast inspected: Oct 2021
Monksmead School
PrimaryLast inspected: Nov 2022
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
The surrounding area (1-mile radius) experiences higher crime levels
Most Common Incidents
April 2026Anti-social behaviour
66 incidents (30%)
violent crime
52 incidents (24%)
Shoplifting
24 incidents (11%)
Criminal damage
17 incidents (8%)
Public order
15 incidents (7%)
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.