The Cardiff Grade Report

125,888 graded homes · updated from the EPC register

The average Cardiff home is a C — and 56% of the town's homes could reach a B or better.

C
Town Grade
The most common grade among current certificates in Cardiff. Average score 68.3.

Grade distribution

Share of Cardiff homes per grade, current certificates.

1310
16115
51002
44998
11019
1311
335
ABCDEFG

Grade by construction era

Older homes grade lower — and have the most headroom.

Pre-1900
D59.2
1900–1929
D61.8
1930–1949
D62.5
1950–1966
D65.5
1967–1982
D67.5
1983–1995
C70.2
1996 onwards
C78.2

Best-graded streets

Streets with at least 10 graded homes.

1Maes Yr YsgolCF3 · 51 homesA2Heol TelerchCF3 · 10 homesA3Clos WinmillCF3 · 18 homesA4Tai Caer CastellCF3 · 28 homesA5Nant Y PandyCF3 · 22 homesB

Most upgraded streets

Biggest average score gain from regrades, last 3 years.

1Abergele RoadCF3 · 5 homes+25 pts2Pentyrch StreetCF24 · 6 homes+23.7 pts3Lochaber StreetCF24 · 5 homes+22.6 pts4Fairfield AvenueCF5 · 6 homes+22.3 pts5Northumberland StreetCF5 · 5 homes+22 pts

Cardiff by district

Most common grade per postcode district.

CCF3CCF5CCF10CCF11DCF14CCF15CCF23DCF24
E
0.3% of Cardiff rental stock sits below the MEES line.
Rentals need a minimum grade by law — E today, direction of travel C. 46,868 rented homes on record.
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