Energy Performance Certificate
4, Branksome Avenue
SO15 5NY
SOUTHAMPTON
Current
F
33
Potential
D
62
This F-Rated Property Costs Significantly More to Run
This Property
£1,675
estimated per year
UK Average
£1,800
per year
After Improvements
£934
potential per year
💰 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 F-Rated Property
With the right upgrades, this property could reach a D rating — saving up to £741 per year. Improvements are ranked by return on investment.
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💰 Save £1,991/year
With 3 selected upgrades
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Your Savings Today
£1,991/yr
£19,910 over 10 years
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£1,991/yr
£19,910 over 10 years
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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 F Rating?
This semi-detached house is located in SOUTHAMPTON, SO15 5NY. The property offers 120.32m² (1295 sq ft) of spacious living space with 5 habitable rooms. It is a characterful interwar or early 20th century home. Currently rated F (33/100) for energy efficiency, this property would benefit significantly from energy improvements. With recommended improvements, it could achieve a D rating (62/100). 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. The property has good loft insulation, though topping up to the recommended 270mm depth could provide additional energy savings. 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 £1675, comprising £1287 for heating, £308 for hot water, and £80 for lighting. The property produces 9.3 tonnes of CO2 per year, which is high for a UK home.
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Achievable Rating
With recommended improvements
Based on assessment dated 13 Sept 2010
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, 150 mm loft insulation
🪟 Windows
Fully double glazed
📦 Floor
Suspended, no insulation (assumed)
🔥 Heating
Boiler and radiators, mains gas
🚿 Hot Water
NaN
💡 Lighting
50.0% low energy — Low energy lighting in 50% of fixed outlets
Property Information
Full Address
4, Branksome Avenue
SO15 5NY
SOUTHAMPTON
Property Type
House
Semi-Detached
Construction Age
England and Wales: 1900-1929
Floor Area
120.32 m²
5.0 total rooms
CO₂ Emissions
9.3 tonnes/year
93 kg/m²
Energy Consumption
556 kWh/m²/year
F-Rated Properties in SOUTHAMPTON
SOUTHAMPTON properties with F ratings are among the least energy efficient in the area. Properties in this postcode district (SO15) 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
Boiler and radiators, mains gas
£1287 /yr
Save £625/yr with improvements
🚿 Hot Water
£308 /yr
Save £89/yr with improvements
💡 Lighting
50.0% low energy
£80 /yr
Save £27/yr with improvements
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Nearby Schools
Within 3 miles of this property
Shirley Infant School
PrimaryLast inspected: Sept 2019
Shirley Junior School
PrimaryLast inspected: Jun 2023
Upper Shirley High School
SecondaryLast inspected: Oct 2019
Wordsworth Primary School
PrimaryLast inspected: Mar 2023
Foundry Lane Primary School
PrimaryLast inspected: Jan 2022
Hollybrook Junior School
PrimaryLast inspected: Jan 2019
Shirley Warren Primary & Nursery School
PrimaryLast inspected: Nov 2022
Hollybrook Infant School
PrimaryLast inspected: Feb 2020
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.
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.