Energy Performance Certificate
151, Clarence Crescent
SW4 8LN
LONDON
Current
D
65
Potential
C
79
At a Glance
About This Property
This terraced maisonette is located in LONDON, SW4 8LN. The property offers 89m² (958 sq ft) of good-sized living space with 4 habitable rooms. It is a post-war property from the mid-20th century. With an EPC rating of D (65/100), this property is around the UK average for energy efficiency. With recommended improvements, it could achieve a C rating (79/100). 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 flat roof has poor insulation. Flat roof insulation is more complex but essential for preventing heat loss and condensation issues, typically costing £1,000-£3,000 depending on access and method. 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 £773, comprising £506 for heating, £141 for hot water, and £126 for lighting. The property produces 3.4 tonnes of CO2 per year, which is low for a UK home.
How Does 151, Clarence Crescent Compare?
With an energy efficiency score of 65/100, this LONDON property is around the national average for UK homes. Annual energy costs of £773 are approximately £1027 below the UK average of £1800, representing significant savings. The 89m² floor area is above the UK average of 87m². At 3.4 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 SW4 postcode district.
How This Property Compares
vs UK Average
vs LONDON
vs SW4
National Ranking: With an EPC score of 65/100, this property is average and performs better than approximately 45% of UK homes for energy efficiency.
Top 55% nationally
Energy Costs: £229/year more than the LONDON average
Energy Efficiency Rating
📊 Official EPC Register DataCurrent Rating
Potential Rating
With recommended improvements
Based on assessment dated 29 Nov 2018
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Property Information
Full Address
151, Clarence Crescent
SW4 8LN
LONDON
Property Type
Maisonette
Mid-Terrace
Construction Age
England and Wales: 1950-1966
Floor Area
89.0 m²
4.0 total rooms
4.0 heated
Tenure
owner-occupied
Efficiency Score
65 / 100
Potential: 79
CO₂ Emissions
3.4 tonnes/year
38 kg/m²
Energy Consumption
217 kWh/m²/year
Last Inspected
29 Nov 2018
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 SW4 postcode district contains over 20500 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
£506.0/yr
Save £250/yr
Hot Water
£141.0/yr
Lighting
13.0% low energy
£126.0/yr
Save £59/yr
Building Elements
Walls
Cavity wall, as built, no insulation (assumed)
Roof
Flat, no insulation (assumed)
Windows
Fully double glazed
Floor
(another dwelling below)
Heating System
Boiler and radiators, mains gas
Main Fuel
mains gas (not community)
Lighting
Low energy lighting in 13% of fixed outlets
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Your Savings Today
£756/yr
£7,560 over 10 years
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£756/yr
£7,560 over 10 years
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Loft Insulation
Your roof is rated Very Poor. Top up to 270mm for best results.
Cavity Wall Insulation
Your walls are rated Poor. Cavity fill is quick and cost-effective.
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 →Broadband & Connectivity
Average download speed: 165 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? →
Understanding A-G ratings, what each means, and how UK properties compare.
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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.