Wales
Cardiff
51.6% of homes are below EPC C
Based on analysis of 189,141 EPC certificates
3.7% better than the national average of 55.3%
51.6%
Below EPC C
97,608 properties
189,141
Properties analysed
EPC certificates
£638.8M
Estimated upgrade cost
to bring all to EPC C
262 / 346
National rank
Better half nationally
Compared to the national average
Cardiff has 51.6% of homes below EPC C. This is 3.7 percentage points better than the national average of 55.3% for England and Wales. It ranks 262 out of 346 local authorities, where rank 1 is the worst performing.
EPC Rating Distribution
A0.9%1,623
B10.4%19,652
C37.1%70,257
D37.5%70,994
E11.6%22,020
F1.9%3,593
G0.5%1,001
Ratings D, E, F, and G are below the proposed 2030 minimum standard of EPC C.
Property Type Breakdown
| Property Type | Total | Below C |
|---|---|---|
| House | 110,613 | 62.4% |
| Flat | 69,688 | 32.7% |
| Bungalow | 5,834 | 71.4% |
| Maisonette | 2,995 | 53.9% |
| Park home | 11 | 90.9% |
Construction Age Breakdown
| Age Band | Total | Below C |
|---|---|---|
| before 1900 | 15,059 | 82.8% |
| 1900-1929 | 36,886 | 78.6% |
| 1930-1949 | 19,253 | 74.8% |
| 1950-1966 | 27,380 | 61.2% |
| 1967-1975 | 16,000 | 54.4% |
| 1976-1982 | 8,584 | 40.9% |
| 1983-1990 | 11,094 | 38.3% |
| 1991-1995 | 7,374 | 32.3% |
| 1996-2002 | 10,775 | 24.9% |
| 2003-2006 | 11,654 | 12.3% |
| 2007-2011 | 2,263 | 6.7% |
| 2012-2021 | 209 | 8.6% |
| 2022 onwards | 7 | 0.0% |
Tenure Breakdown
| Tenure | Total | Below C |
|---|---|---|
| Owner-occupied | 83,702 | 63.6% |
| Private rental | 53,068 | 55.8% |
| Social rental | 35,724 | 35.0% |
Additional Statistics
£608/yr
Avg heating cost
82 m2
Avg floor area
3.3 t/yr
Avg CO2 emissions
10.0%
Solid wall (uninsulated)
12.6%
No mains gas
For Editors
Pre-written quote
“Cardiff has 51.6% of its housing stock below the proposed 2030 EPC minimum standard, with an estimated upgrade cost of £638.8M. This places it 262 out of 346 local authorities in England and Wales.”
EPCGuide Research Team
Shareable Summary
EPCGuide Research
Cardiff
51.6%below EPC C
189,141 properties analysed
£638.8M estimated upgrade cost
Rank 262 of 346 local authorities
epcguide.co.uk/research/areas/cardiff