Energy Performance Certificate
Flat 14 Leda Court, Caldwell Street
SW9 0EU
LONDON
Current
D
58
Potential
C
72
At a Glance
About This Property
This detached flat is located in LONDON, SW9 0EU. The property offers 67.51m² (727 sq ft) of modest-sized living space with 4 habitable rooms. It is a characterful interwar or early 20th century home. With an EPC rating of D (58/100), this property is around the UK average for energy efficiency. With recommended improvements, it could achieve a C rating (72/100). The property benefits from a highly efficient gas central heating system, likely a modern condensing boiler achieving 90%+ efficiency. 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 £696, comprising £523 for heating, £122 for hot water, and £51 for lighting. The property produces 3.3 tonnes of CO2 per year, which is low for a UK home.
How Does Flat 14 Leda Court Compare?
With an energy efficiency score of 58/100, this LONDON property is around the national average for UK homes. Annual energy costs of £696 are approximately £1104 below the UK average of £1800, representing significant savings. At 3.3 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 SW9 postcode district.
How This Property Compares
vs UK Average
vs LONDON
vs SW9
National Ranking: With an EPC score of 58/100, this property is average and performs better than approximately 45% of UK homes for energy efficiency.
Top 55% nationally
Energy Costs: £152/year more than the LONDON average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
With recommended improvements
Based on assessment dated 5 Mar 2009
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Property Information
Full Address
Flat 14 Leda Court
Caldwell Street
SW9 0EU
LONDON
Property Type
Flat
Detached
Construction Age
England and Wales: 1930-1949
Floor Area
67.51 m²
4.0 total rooms
4.0 heated
Tenure
owner-occupied
Efficiency Score
58 / 100
Potential: 72
CO₂ Emissions
3.3 tonnes/year
49 kg/m²
Energy Consumption
341 kWh/m²/year
Last Inspected
5 Mar 2009
marketed sale
About LONDON
LONDON is situated in South West London, London. Properties in LONDON have an average EPC rating of D (score 64/100). The SW9 postcode district contains over 21600 registered properties. Built during the mid-20th century suburban expansion, this property reflects the housing developments common to the LONDON area.
Location & Nearby Area
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Annual Energy Costs
Heating
Boiler and radiators, mains gas
£523.0/yr
Save £155/yr
Hot Water
£122/yr
Save £30/yr
Lighting
44.0% low energy
£51/yr
Save £18/yr
Building Elements
Walls
Cavity wall, as built, no insulation (assumed)
Roof
(another dwelling above)
Windows
Single glazed
Floor
Solid, 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 44% of fixed outlets
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💰 Save £603/year
With 3 selected upgrades
Future Energy Price Simulator
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Your Savings Today
£603/yr
£6,030 over 10 years
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£603/yr
£6,030 over 10 years
Build Your Upgrade Plan
Sorted by best return on investment (quick wins first)
Cavity Wall Insulation
Your walls are rated Poor. Cavity fill is quick and cost-effective.
Double Glazing
Your windows are rated Very Poor. Modern A-rated double glazing reduces drafts and heat loss.
Air Source Heat Pump
Ultra-efficient heating with £7,500 government grant. OVO: MCS certified installation.
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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
Reay Primary School
PrimaryLast inspected: May 2023
Van Gogh Primary
PrimaryLast inspected: Feb 2023
Christ Church Primary SW9
PrimaryLast inspected: Jun 2019
Platanos College
SecondaryLast inspected: Oct 2021
Ashmole Primary School
PrimaryLast inspected: Jun 2023
St Stephen's Church of England Primary School
PrimaryLast inspected: May 2019
St John the Divine Church of England Primary School
PrimaryLast inspected: May 2022
Saint Gabriel's 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.
How Much Does a Low EPC Cost You? →
The financial impact of poor energy efficiency on resale value and running costs.
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.