Over 30% of homes in Kerry with a BER rating have a C classification.
That’s according to the CSO’s Domestic Building Energy Report for the fourth quarter of 2025.
The report shows over 40,600 (40,659) domestic houses in the county have a BER Rating.
A BER or Building Energy Rating, measures a house's efficiency in using energy, with A being the most efficient, and G being the least.
According to the report by the Central Statistics Office over 12,000 homes in Kerry, or 31%, have a C rating.
Of these both C1 and C2 are rated at 10%, while 11% have a C3 classification.
12% of homes in the county have the top BER rating, of A; while 17% are B rated (B1 accounts for 3%, 5% of dwellings are B2 rated, and 9% are have a B3 rating).
A fifth of domestic properties in Kerry (20%) have a D rating (11% rated D1, with D2 listed homes at 9%); 9% of homes are E rated (6% rated E1, 4% rated E2), while 4% have an F classification.
Meanwhile, 7% of domestic buildings in the county have the lowest BER rating, of G.
The average age of the houses audited in Kerry was 33 years.
