Energy Performance Certificate
Flat 20, Copperfield House
PO1 4NY
PORTSMOUTH
Current
C
77
Potential
C
77
At a Glance
About This Property
This terraced flat is located in PORTSMOUTH, PO1 4NY. The property offers 45m² (484 sq ft) of compact living space with 2 habitable rooms. It is a characterful interwar or early 20th century home. The property holds an EPC rating of C (77/100), meeting the government's target standard for energy efficiency. The property has modern timber frame or system-built walls, which typically offer good insulation properties when properly maintained. 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 £345, comprising £158 for heating, £130 for hot water, and £57 for lighting. The property produces 0.7 tonnes of CO2 per year, which is very low for a UK home.
How Does Flat 20 Compare?
With an energy efficiency score of 77/100, this PORTSMOUTH property is above average, performing better than 60% of UK properties. Annual energy costs of £345 are approximately £1455 below the UK average of £1800, representing significant savings. With 45m² of space, this is a more compact property compared to the UK average of 87m². CO2 emissions of 0.7 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 PO1 postcode district.
How This Property Compares
vs UK Average
vs PORTSMOUTH
vs PO1
National Ranking: With an EPC score of 77/100, this property is good and performs better than approximately 60% of UK homes for energy efficiency.
Top 40% nationally
Energy Costs: £262/year less than the PORTSMOUTH average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
Based on assessment dated 20 Oct 2022
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Property Information
Full Address
Flat 20
Copperfield House
Wingfield Street
PO1 4NY
PORTSMOUTH
Property Type
Flat
Enclosed Mid-Terrace
Construction Age
England and Wales: 1930-1949
Floor Area
45.0 m²
2.0 total rooms
2.0 heated
Tenure
Owner-occupied
Efficiency Score
77 / 100
Potential: 77
CO₂ Emissions
0.7 tonnes/year
16 kg/m²
Energy Consumption
189 kWh/m²/year
Last Inspected
20 Oct 2022
marketed sale
About PORTSMOUTH
PORTSMOUTH is situated in Hampshire, South East. Properties in PORTSMOUTH have an average EPC rating of D (score 62/100). This property performs better than most homes in the area. Heating costs are £449 below the PORTSMOUTH average, offering good value. The PO1 postcode district contains over 13300 registered properties. Built during the mid-20th century suburban expansion, this property reflects the housing developments common to the PORTSMOUTH area.
Location & Nearby Area
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Annual Energy Costs
Heating
Community scheme
£158.0/yr
Hot Water
£130.0/yr
Lighting
100.0% low energy
£57.0/yr
Building Elements
Walls
System built, as built, no insulation (assumed)
Roof
(another dwelling above)
Windows
Fully double glazed
Floor
(another dwelling below)
Heating System
Community scheme
Main Fuel
from heat network data (community)
Lighting
Low energy lighting in all fixed outlets
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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
Ark Dickens Primary Academy
PrimaryLast inspected: Nov 2019
The Flying Bull Academy
PrimaryLast inspected: Jul 2022
Manor Infant and Nursery School
PrimaryLast inspected: Apr 2023
The Portsmouth Academy
SecondaryLast inspected: Apr 2022
Arundel Court Primary Academy and Nursery
PrimaryLast inspected: Oct 2021
New Horizons Primary School
PrimaryLast inspected: Jul 2023
St John's Cathedral Catholic Primary School
PrimaryLast inspected: Jul 2022
St Edmund's Catholic School
SecondaryLast inspected: Jun 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 2026violent crime
309 incidents (35%)
Anti-social behaviour
115 incidents (13%)
Shoplifting
110 incidents (12%)
Public order
77 incidents (9%)
Criminal damage
56 incidents (6%)
About this data: Crime statistics show incidents reported during April 2026 within a 1-mile radius. Data from Police.uk, updated monthly.
More Properties in PO1 4NY
Showing properties in the same postcode. Click to view detailed EPC data for each property.
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All properties in PO1 • 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.