Almost two-fifths (38%) of non-domestic buildings constructed between 2020 and 2023 received an A rating compared with 22% of those built during 2015-2019 (See Table 13).
Schools and colleges were the most energy efficient with 40% awarded an A rating (See Table 3).
Nine per cent of hospitals and primary health care buildings were A-rated (See Table 3).
The number of non-domestic Building Energy Rating (BER) audits reported between July and September 2023 was 3.2% higher compared with July to September 2022 (See Table A and Table 1).
BER certificates expire after 10 years unless a new audit has been undertaken. This means that certificates from earlier years have expired if they were not updated. The CSO has included these expired certificates in this release in order to have a more representative analysis of energy efficiency in the non-domestic sector. Provisional BER certificates for buildings that are incomplete or not yet constructed have been excluded from this release.
| Table A Number of Non-Domestic BER certificates | ||||||
| number | ||||||
| Period | 2019 | 2020 | 2021 | 2022 | 2023 | % change 2023/2022 |
| July | 360 | 273 | 335 | 395 | 471 | 19% |
| August | 352 | 228 | 368 | 394 | 351 | -11% |
| September | 348 | 358 | 371 | 416 | 421 | 1% |
| Quarter 3 | 1,060 | 859 | 1,074 | 1,205 | 1,243 | 3% |
| 2021 | 2022 | 2023 | |
| January | 280 | 247 | 300 |
| February | 262 | 386 | 305 |
| March | 268 | 365 | 490 |
| April | 284 | 385 | 371 |
| May | 305 | 357 | 400 |
| June | 259 | 316 | 419 |
| July | 335 | 395 | 471 |
| August | 368 | 394 | 351 |
| September | 371 | 416 | 421 |
| October | 371 | 288 | |
| November | 440 | 394 | |
| December | 295 | 293 |
| BER Ratings | |
| A | 3 |
| B | 14 |
| C | 33 |
| D | 21 |
| E | 11 |
| F | 7 |
| G | 12 |
| A | B | C | D | E | F | G | |
| Retail | 1 | 14 | 38 | 18 | 10 | 7 | 13 |
| Office | 2 | 9 | 30 | 24 | 13 | 8 | 14 |
| Restaurant/public house | 0 | 8 | 32 | 34 | 16 | 6 | 4 |
| Hotel | 3 | 23 | 41 | 21 | 7 | 3 | 2 |
| Warehouses | 1 | 16 | 33 | 20 | 10 | 6 | 14 |
| Workshops/maintenance depot | 0 | 9 | 23 | 22 | 14 | 10 | 23 |
| Industrial process building | 3 | 32 | 27 | 16 | 10 | 3 | 9 |
| Hospitals and primary health care | 9 | 14 | 25 | 20 | 13 | 8 | 11 |
| Community/day centre | 7 | 25 | 30 | 18 | 8 | 5 | 7 |
| Nursing residential homes and hostels | 13 | 41 | 28 | 13 | 3 | 1 | 2 |
| Schools and colleges | 40 | 21 | 19 | 11 | 4 | 2 | 3 |
| Sports facilities | 3 | 30 | 29 | 17 | 8 | 6 | 8 |
| Other | 10 | 18 | 21 | 15 | 10 | 7 | 18 |
| A | B | C | D | E | F | G | |
| 1900-1977 | 0 | 7 | 29 | 26 | 16 | 9 | 13 |
| 1978-1999 | 0 | 12 | 36 | 23 | 12 | 7 | 10 |
| 2000-2004 | 0 | 17 | 43 | 19 | 8 | 4 | 8 |
| 2005-2009 | 2 | 17 | 33 | 18 | 9 | 6 | 15 |
| 2010-2014 | 6 | 22 | 28 | 19 | 10 | 5 | 10 |
| 2015-2019 | 22 | 35 | 19 | 10 | 4 | 2 | 9 |
| 2020-2023 | 38 | 19 | 18 | 10 | 5 | 4 | 5 |
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Statistician's Comment
The Central Statistics Office (CSO) has today (17 October 2023) released Non-Domestic Building Energy Ratings for Quarter 3 (Q3) 2023.
Commenting on the release Kevin Hunt, Statistician in the Environment and Climate Division, said: "There were 1,243 Building Energy Rating (BER) audits reported between July and September (Q3) 2023 compared with 1,205 in Q3 2022. There were 72,800 non-domestic BER audits conducted in the period January 2009 to September 2023 (See Table 1). Of the non-domestic BER audits conducted since 2009, 3% of buildings were awarded an A rating, 14% a B rating, and 33% were given a C rating (See Table 3).
Period of Construction
BER audits were conducted for 1,754 non-domestic buildings constructed between 2020 and 2023. Almost two-fifths (38%) of these buildings received an A rating, compared with 22% of non-domestic buildings constructed during 2015 to 2019 (See Table 13).
Energy Efficiency
The most energy efficient building types audited during 2009-2023 were Schools and Colleges with 40% awarded an A rating. The second most energy efficient buildings were Nursing Residential Homes and Hostels with 13% rated A. The least energy efficient building types, defined by proportion of the lowest rating (G), were Workshops/Maintenance Depots (23%) (See Table 3).
Local Area Analysis
The highest proportion of A ratings by county was in Kildare at 5%. Sligo had the highest proportion of G-rated buildings at 17% (See Table 4). Among Dublin postal districts, Dublin 20 had the highest proportion of A ratings at 5%. The highest proportion of G ratings was 17% in Dublin 3, Dublin 5, Dublin 6W, and Dublin 8 (See Table 5)."