Energy Performance Certificate
29, Harefield Road
SO17 3TG
SOUTHAMPTON
Current
G
16
Potential
D
55
This G-Rated Property Costs Significantly More to Run
This Property
£2,092
estimated per year
UK Average
£1,800
per year
After Improvements
£1,146
potential per year
This property costs approximately £292 more per year than the UK average. Recommended improvements could save up to £946 annually.
💰 Government Grants Available for This Property
🏛️ BUS Grant
£7,500
Off the cost of an air source heat pump. Available now — limited places.
Check Eligibility →🏠 ECO4 Scheme
Free
Free insulation & heating upgrades for eligible households on benefits or low income.
Check Eligibility →📉 0% VAT
Save ~20%
Zero VAT on heat pumps, insulation, and solar panels until 2027. Applies automatically.
Get Solar Quote →How to Improve This G-Rated Property
With the right upgrades, this property could reach a D rating — saving up to £946 per year. Improvements are ranked by return on investment.
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💰 Save £2,756/year
With 4 selected upgrades
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Your Savings Today
£2,756/yr
£27,560 over 10 years
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£2,756/yr
£27,560 over 10 years
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New A-Rated Boiler
Your heating is rated Very Poor. Compare local boiler installers.
Cavity Wall Insulation
Your walls are rated Poor. Cavity fill is quick and cost-effective.
Solar Panels + Battery
Your house is ideal for solar. OVO: UK's #1 green energy supplier.
Air Source Heat Pump
Ultra-efficient heating with £7,500 government grant. OVO: MCS certified installation.
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Why Does This Property Have a G Rating?
This semi-detached house is located in SOUTHAMPTON, SO17 3TG. The property offers 90m² (969 sq ft) of good-sized living space with 4 habitable rooms. It is a characterful interwar or early 20th century home. Currently rated G (16/100) for energy efficiency, this property would benefit significantly from energy improvements. With recommended improvements, it could achieve a D rating (55/100). 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 £2092, comprising £1490 for heating, £516 for hot water, and £86 for lighting. The property produces 7.6 tonnes of CO2 per year, which is above average for a UK home. The property last sold in September 2015 for £150,000, with 2 recorded sales in our database.
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Achievable Rating
With recommended improvements
Based on assessment dated 6 May 2015
What's Causing the Poor Energy Rating?
The EPC assessor rated each element of this property. Poor and average ratings are the biggest opportunities for improvement.
🧱 Walls
Cavity wall, as built, no insulation (assumed)
🏗️ Roof
Pitched, 100 mm loft insulation
🪟 Windows
Fully double glazed
📦 Floor
Suspended, no insulation (assumed)
🔥 Heating
Portable electric heaters assumed for most rooms
🚿 Hot Water
NaN
💡 Lighting
47.0% low energy — Low energy lighting in 47% of fixed outlets
Property Information
Full Address
29, Harefield Road
SO17 3TG
SOUTHAMPTON
Property Type
House
Semi-Detached
Construction Age
England and Wales: 1900-1929
Floor Area
90.0 m²
4.0 total rooms
CO₂ Emissions
7.6 tonnes/year
85 kg/m²
Energy Consumption
488 kWh/m²/year
G-Rated Properties in SOUTHAMPTON
SOUTHAMPTON properties with G ratings are among the least energy efficient in the area. Properties in this postcode district (SO17) that have undergone improvement works have seen significant increases in EPC ratings and corresponding reductions in energy bills.
Location & Nearby Area
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Annual Running Costs — Current vs Potential
🔥 Heating
Portable electric heaters assumed for most rooms
£1490 /yr
Save £560/yr with improvements
🚿 Hot Water
£516 /yr
Save £356/yr with improvements
💡 Lighting
47.0% low energy
£86 /yr
Save £30/yr with improvements
💷 Sales History
Note: EPC improvements typically add 3–5% per band to property value. Moving from G to D could add significant value.
£150,000
S
Sept 2015
£168,500
S
Sept 2015
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Nearby Schools
Within 3 miles of this property
Swaythling Primary School
PrimaryLast inspected: Mar 2020
Bassett Green Primary School
PrimaryLast inspected: Jul 2021
Portswood Primary School
PrimaryLast inspected: Feb 2022
Bitterne Park Primary School
PrimaryLast inspected: Sept 2014
Saint George Catholic Voluntary Aided College Southampton
SecondaryLast inspected: Jun 2023
Mansbridge Primary School
PrimaryLast inspected: Nov 2022
Highfield Church of England Primary School
PrimaryLast inspected: Jul 2022
Cantell School
SecondaryLast inspected: Feb 2023
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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Showing properties in the same postcode. Click to view detailed EPC data for each property.
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All properties in SO17 • Click to view detailed energy performance data
About this EPC: Energy Performance Certificates are valid for 10 years and are required when a property is built, sold, or rented.
Data Sources: UK Energy Performance Certificate Register, HM Land Registry Price Paid Data, Police.uk crime statistics.
Public sector information licensed under the Open Government Licence v3.0.