UK Energy Performance
Overview
Performance
Recommendations
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Performance
Lowest Rated Building Components
Share of properties with Poor or Very Poor ratings by building element
EPC Scores by Property Type
Average EPC scores (1–100) by property type, based on estimated running costs
Estimated Annual Running Costs
SAP-modelled heating, hot water and lighting costs per property
Tenure Comparison
Efficiency scores and CO₂ emissions by ownership type
Data source: UK Energy Performance Certificates (EPC) Register • 2024 Lodgements
1.65M Properties
England & Wales
Jan–Dec 2024
Discover more about how we built this dashboard and why.
Methodology
Minimal
Sepia
Terminal
Lowest Rated Building Components
Share of properties with Poor or Very Poor ratings by building element
How Component Ratings Work
View data table
Energy Efficiency
CO₂ Impact
All
House
Flat
Bungalow
Maisonette
How Component Ratings Work
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% of properties
Walls
33%
Roof
13%
Heating
(CO₂: 12%)
9%
Windows
5%
Lighting
3%
1,646,095 properties
Key insights
Walls
are the biggest efficiency weakness — 33% of properties have poor wall insulation
Heating
shows the biggest divergence — 12% poor for CO₂ vs 9% for energy (3pp gap)
EPC Scores by Property Type
Average EPC scores (1–100) by property type, based on estimated running costs
How EPC Scores by Property Type Work
View data table
How EPC Scores by Property Type Work
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Current EPC Score
Potential EPC Score
Key insights
Bungalows
have the highest improvement potential at
+19.7
EPC points
Estimated Annual Running Costs
SAP-modelled heating, hot water and lighting costs per property
Understanding Running Costs
View data table
All
House
Flat
Bungalow
Maisonette
Understanding Running Costs
View data table
1,432,728 properties
Key insights
Average estimated annual cost is
£1,411
, dropping to
£1,049
if all recommended improvements were made — a potential saving of
£362/yr
per property
Tenure Comparison
Efficiency scores and CO₂ emissions by ownership type
Understanding Tenure Comparison
View data table
Understanding Tenure Comparison
View data table
Owner-occupied
810K properties
66.3
Efficiency
4t
CO₂/yr
Social Rented
352K properties
71
Efficiency
2.48t
CO₂/yr
Private Rented
308K properties
67.8
Efficiency
3.05t
CO₂/yr
Key insights
Social housing
outperforms with highest efficiency and lowest CO₂