Energy Performance Certificate
21, Hillary Road
SL3 7DN
SLOUGH
Current
C
75
Potential
B
85
At a Glance
About This Property
This semi-detached house is located in SLOUGH, SL3 7DN. The property offers 125m² (1346 sq ft) of spacious living space with 6 habitable rooms. It is a post-war property from the mid-20th century. The property holds an EPC rating of C (75/100), meeting the government's target standard for energy efficiency. With recommended improvements, it could achieve a B rating (85/100). The gas central heating system has good efficiency, indicating a relatively modern, well-maintained boiler. Double glazing is installed throughout the property, providing good thermal and acoustic insulation. Estimated annual energy costs are £689, comprising £498 for heating, £101 for hot water, and £90 for lighting. The property produces 3.1 tonnes of CO2 per year, which is low for a UK home. The property last sold in November 2020 for £525,000.
How Does 21, Hillary Road Compare?
With an energy efficiency score of 75/100, this SLOUGH property is above average, performing better than 60% of UK properties. Annual energy costs of £689 are approximately £1111 below the UK average of £1800, representing significant savings. The 125m² floor area is above the UK average of 87m². At 3.1 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 SL3 postcode district.
How This Property Compares
vs UK Average
vs SLOUGH
vs SL3
National Ranking: With an EPC score of 75/100, this property is good and performs better than approximately 60% of UK homes for energy efficiency.
Top 40% nationally
Energy Costs: £82/year more than the SLOUGH average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
With recommended improvements
Based on assessment dated 21 Jul 2021
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Property Information
Full Address
21, Hillary Road
SL3 7DN
SLOUGH
Property Type
House
Semi-Detached
Construction Age
England and Wales: 1950-1966
Floor Area
125.0 m²
6.0 total rooms
6.0 heated
Tenure
Owner-occupied
Efficiency Score
75 / 100
Potential: 85
CO₂ Emissions
3.1 tonnes/year
24 kg/m²
Energy Consumption
139 kWh/m²/year
Last Inspected
21 Jul 2021
marketed sale
About SLOUGH
SLOUGH is situated in Berkshire, South East. Properties in SLOUGH have an average EPC rating of D (score 63/100). This property performs better than most homes in the area. The SL3 postcode district contains over 13700 registered properties. Built during the mid-20th century suburban expansion, this property reflects the housing developments common to the SLOUGH area.
Location & Nearby Area
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Property Sale History
£525,000
30 November 2020
Type: Semi-Detached
Annual Energy Costs
Heating
Boiler and radiators, mains gas
£498.0/yr
Save £28/yr
Hot Water
£101.0/yr
Save £31/yr
Lighting
100.0% low energy
£90.0/yr
Building Elements
Walls
Cavity wall, filled cavity
Roof
Flat, 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
Low energy lighting in all fixed outlets
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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
The Langley Academy Primary
PrimaryLast inspected: Jul 2018
The Langley Academy
SecondaryLast inspected: May 2023
Ryvers School
PrimaryLast inspected: Oct 2019
Langley Grammar School
SecondaryLast inspected: Nov 2021
Langley Hall Primary Academy
PrimaryLast inspected: Nov 2021
Marish Primary School
PrimaryLast inspected: May 2022
Castleview Primary School
PrimaryLast inspected: Sept 2021
St Bernard's Catholic Grammar School
SecondaryLast inspected: Sept 2011
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 2026violent crime
111 incidents (46%)
Anti-social behaviour
26 incidents (11%)
Public order
23 incidents (10%)
Criminal damage
17 incidents (7%)
Theft
17 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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All properties in SL3 • Click to view detailed energy performance data
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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.