Energy Performance Certificate
12, Cawte Road
SO15 3DR
SOUTHAMPTON
Current
D
57
Potential
C
75
At a Glance
About This Property
This semi-detached flat is located in SOUTHAMPTON, SO15 3DR. The property offers 49.82m² (536 sq ft) of compact living space with 2 habitable rooms. It is a period property with Victorian or earlier origins. With an EPC rating of D (57/100), this property is around the UK average for energy efficiency. With recommended improvements, it could achieve a C rating (75/100). 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. Single glazing is a significant source of heat loss, accounting for up to 25% of a home's heat escaping through windows. Upgrading to double glazing typically costs £400-£600 per window but improves thermal comfort and can reduce noise by up to 30dB. Estimated annual energy costs are £688, comprising £554 for heating, £89 for hot water, and £45 for lighting. The property produces 3.6 tonnes of CO2 per year, which is low for a UK home. The property last sold in March 2023 for £137,500, with 3 recorded sales in our database. For landlords: This rental property with a D rating is positioned above the current minimum standard. With proposed changes to require a C rating by 2028, modest improvements now could future-proof your compliance.
How Does 12, Cawte Road Compare?
With an energy efficiency score of 57/100, this SOUTHAMPTON property is around the national average for UK homes. Annual energy costs of £688 are approximately £1112 below the UK average of £1800, representing significant savings. With 49.82m² of space, this is a more compact property compared to the UK average of 87m². At 3.6 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 SO15 postcode district.
How This Property Compares
vs UK Average
vs SOUTHAMPTON
vs SO15
National Ranking: With an EPC score of 57/100, this property is average and performs better than approximately 45% of UK homes for energy efficiency.
Top 55% nationally
Energy Costs: £107/year more than the SOUTHAMPTON average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
With recommended improvements
Based on assessment dated 18 Sept 2009
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Property Information
Full Address
12, Cawte Road
SO15 3DR
SOUTHAMPTON
Property Type
Flat
Semi-Detached
Construction Age
England and Wales: before 1900
Floor Area
49.82 m²
2.0 total rooms
2.0 heated
Tenure
rental (private)
Efficiency Score
57 / 100
Potential: 75
CO₂ Emissions
3.6 tonnes/year
72 kg/m²
Energy Consumption
429 kWh/m²/year
Last Inspected
18 Sept 2009
rental (private)
About SOUTHAMPTON
SOUTHAMPTON is situated in Hampshire, South East. Properties in SOUTHAMPTON have an average EPC rating of D (score 63/100). The SO15 postcode district contains over 18100 registered properties. Like many SOUTHAMPTON properties, this home features period architecture with character typical of Victorian-era construction.
Location & Nearby Area
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Property Sale History
£137,500
2 March 2023
Type: Flat
vs previous sale
£130,000
1 August 2018
Type: Flat
vs previous sale
£127,500
9 March 2018
Type: Flat
Market Insights: This property has sold 3 times since 2015. Value has increased by 7.8% over this period.
Annual Energy Costs
Heating
Boiler and radiators, mains gas
£554.0/yr
Save £208/yr
Hot Water
£89.0/yr
Save £17/yr
Lighting
20.0% low energy
£45.0/yr
Save £20/yr
Building Elements
Walls
Cavity wall, as built, no insulation (assumed)
Roof
(another dwelling above)
Windows
Single glazed
Floor
Suspended, 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 20% of fixed outlets
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💰 Save £645/year
With 3 selected upgrades
Future Energy Price Simulator
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Your Savings Today
£645/yr
£6,450 over 10 years
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£645/yr
£6,450 over 10 years
Build Your Upgrade Plan
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Cavity Wall Insulation
Your walls are rated Very Poor. Cavity fill is quick and cost-effective.
Air Source Heat Pump
Ultra-efficient heating with £7,500 government grant. OVO: MCS certified installation.
Double Glazing
Your windows are rated Very Poor. Modern A-rated double glazing reduces drafts and heat loss.
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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
St Mark's Church of England School
All-throughLast inspected: Oct 2022
Freemantle Church of England Community Academy
PrimaryLast inspected: Oct 2018
Springhill Catholic Primary School
PrimaryLast inspected: Mar 2022
Foundry Lane Primary School
PrimaryLast inspected: Jan 2022
Banister Primary School
PrimaryLast inspected: Nov 2018
Wordsworth Primary School
PrimaryLast inspected: Mar 2023
St Anne's Catholic School
SecondaryLast inspected: Sept 2022
Regents Park Community College
SecondaryLast inspected: Nov 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: 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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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.
Air Source Heat Pumps vs Gas Boilers →
Complete cost comparison, government grants up to £7,500, and real running costs for 2025.
EPC Requirements for Landlords 2025 →
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What is a Good EPC Rating? →
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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.