Energy Performance Certificate
21 Hillside Road
HA6 1PY
NORTHWOOD
Current
A
94
Potential
A
101
At a Glance
About This Property
This detached house is located in NORTHWOOD, HA6 1PY. The property offers 125m² (1346 sq ft) of spacious living space with 4 habitable rooms. It is a post-war property from the mid-20th century. With an EPC rating of A (94/100), this property is highly energy efficient, placing it in the top tier of UK homes. The gas central heating system has good efficiency, indicating a relatively modern, well-maintained boiler. The walls feature cavity wall insulation for improved thermal efficiency. 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 £1537, comprising £1196 for heating, £249 for hot water, and £92 for lighting. The property produces 3.5 tonnes of CO2 per year, which is low for a UK home.
How Does 21 Hillside Road Compare?
With an energy efficiency score of 94/100, this NORTHWOOD property is outstanding, placing it in the top 3% of UK homes. At £1537 per year, energy costs are below the national average of £1800. The 125m² floor area is above the UK average of 87m². At 3.5 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 HA6 postcode district.
How This Property Compares
vs UK Average
vs NORTHWOOD
vs HA6
National Ranking: With an EPC score of 94/100, this property is excellent and performs better than approximately 97% of UK homes for energy efficiency.
Top 3% nationally
Energy Costs: £607/year more than the NORTHWOOD average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
Based on assessment dated 5 Aug 2025
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Property Information
Full Address
21 Hillside Road
HA6 1PY
NORTHWOOD
Property Type
House
Detached
Construction Age
England and Wales: 1950-1966
Floor Area
125.0 m²
4.0 total rooms
4.0 heated
Tenure
Owner-occupied
Efficiency Score
94 / 100
Potential: 101
CO₂ Emissions
3.5 tonnes/year
28 kg/m²
Energy Consumption
140 kWh/m²/year
Last Inspected
5 Aug 2025
marketed sale
About NORTHWOOD
NORTHWOOD is situated in Harrow, London. Properties in NORTHWOOD have an average EPC rating of D (score 61/100). This property performs better than most homes in the area. Heating costs are £266 above the local average, suggesting room for improvement. The HA6 postcode district contains over 7400 registered properties. Built during the mid-20th century suburban expansion, this property reflects the housing developments common to the NORTHWOOD area.
Location & Nearby Area
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Annual Energy Costs
Heating
Boiler and radiators, mains gas
£1196.0/yr
Save £372/yr
Hot Water
£249.0/yr
Lighting
100.0% low energy
£92.0/yr
Building Elements
Walls
Cavity wall, as built, no insulation (assumed)
Roof
Pitched, insulated (assumed)
Windows
Fully double glazed
Floor
Suspended, no insulation (assumed)
Heating System
Boiler and radiators, mains gas
Main Fuel
mains gas (not community)
Lighting
Good lighting efficiency
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£1,621/yr
£16,210 over 10 years
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£1,621/yr
£16,210 over 10 years
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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
Hillside Junior School
PrimaryLast inspected: Jun 2019
Hillside Infant School
PrimaryLast inspected: May 2018
UTC Heathrow
SecondaryLast inspected: Feb 2023
Northwood School
SecondaryLast inspected: Oct 2018
Frithwood Primary School
PrimaryLast inspected: Feb 2019
Pinner Wood School
PrimaryLast inspected: Jun 2011
Greenfields Primary School
PrimaryLast inspected: Apr 2022
Harlyn Primary School
PrimaryLast inspected: Sept 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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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.