The number of non-domestic Building Energy Rating (BER) audits performed in certain months have been adversely impacted by the COVID-19 pandemic. For further information please see the SEAI website.
There was an 11% increase in the number of non-domestic Building Energy Rating (BER) audits reported in 2022 compared with 2021. (see Table A and Table 1)
There was a decrease of 9% in the number of non-domestic BER audits reported between October and December (Q4) 2022 compared with Q4 2021. (see Table A and Table 1)
Of the non-domestic BER audits conducted on buildings since 2009, 2% were awarded an A rating, 14% a B rating, and 32% were given a C rating. (see Table 3)
More than one-third (36%) of non-domestic buildings constructed between 2020 and 2022 received an A rating compared with 21% built between 2015-2019. (see Table 13)
The most energy efficient building types audited during 2009-2022 were Schools and Colleges, with 38% awarded an A rating. (see Table 3)
The highest proportion of A ratings for non-domestic buildings was in County Kildare at 6%. (see Table 4)
Looking at Dublin postal districts, Dublin 4, Dublin 15, Dublin 16, and Dublin 20 had the highest proportion of A rated non-domestic buildings at 4%. (see Table 5)
BER certificates expire after ten years unless a new audit has been undertaken. This means that many of the 2009 certificates expired in 2019. The CSO has included these expired certificates in this release.
| Table A: Number of Non-Domestic BER certificates | ||||||
| number | ||||||
| Period | 2018 | 2019 | 2020 | 2021 | 2022 | % change 2022/2021 |
| Quarter 1 | 1,305 | 1,047 | 960 | 840 | 1,019 | 21% |
| Quarter 2 | 1,215 | 1,096 | 444 | 878 | 1,090 | 24% |
| Quarter 3 | 1,131 | 1,070 | 880 | 1,122 | 1,296 | 16% |
| Quarter 4 | 1,009 | 1,033 | 1,024 | 1,151 | 1,042 | -9% |
| Year | 4,660 | 4,246 | 3,308 | 3,991 | 4,447 | 11% |
| 2020 | 2021 | 2022 | |
| January | 283 | 289 | 257 |
| February | 374 | 277 | 399 |
| March | 303 | 274 | 363 |
| April | 125 | 298 | 391 |
| May | 102 | 310 | 364 |
| June | 217 | 270 | 335 |
| July | 278 | 355 | 411 |
| August | 231 | 385 | 421 |
| September | 371 | 382 | 464 |
| October | 335 | 399 | 308 |
| November | 332 | 444 | 436 |
| December | 357 | 308 | 298 |
| BER Ratings | |
| A | 1.685 |
| B | 9.597 |
| C | 22.623 |
| D | 14.505 |
| E | 7.708 |
| F | 4.525 |
| G | 8.806 |
| A | B | C | D | E | F | G | |
| Retail | 1 | 14 | 38 | 17 | 10 | 6 | 14 |
| Office | 2 | 9 | 29 | 24 | 13 | 8 | 15 |
| Restaurant/public house | 0 | 7 | 31 | 35 | 16 | 6 | 4 |
| Hotel | 2 | 22 | 42 | 22 | 7 | 3 | 3 |
| Warehouses | 1 | 16 | 33 | 20 | 10 | 6 | 14 |
| Workshops/maintenance depot | 0 | 9 | 23 | 22 | 14 | 10 | 23 |
| Industrial process building | 3 | 32 | 26 | 16 | 10 | 3 | 9 |
| Hospitals and primary health care | 9 | 15 | 24 | 20 | 12 | 8 | 11 |
| Community/day centre | 7 | 25 | 29 | 17 | 8 | 5 | 9 |
| Nursing residential homes and hostels | 12 | 42 | 28 | 13 | 4 | 1 | 2 |
| Schools and colleges | 38 | 23 | 17 | 12 | 4 | 2 | 3 |
| Sports facilities | 3 | 30 | 29 | 17 | 7 | 6 | 8 |
| Other | 9 | 19 | 22 | 15 | 10 | 7 | 19 |
| A | B | C | D | E | F | G | |
| 1900-1977 | 0 | 7 | 29 | 27 | 16 | 9 | 13 |
| 1978-1999 | 0 | 11 | 36 | 23 | 12 | 7 | 10 |
| 2000-2004 | 0 | 16 | 43 | 19 | 8 | 4 | 8 |
| 2005-2009 | 2 | 17 | 33 | 18 | 9 | 6 | 16 |
| 2010-2014 | 7 | 23 | 28 | 18 | 9 | 5 | 11 |
| 2015-2019 | 21 | 35 | 18 | 9 | 4 | 2 | 11 |
| 2020-2022 | 36 | 20 | 14 | 9 | 4 | 4 | 14 |
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Statistician's Comment
Commenting on the release Dympna Corry, Statistician in the Environment and Climate Division, said: "There was an increase in the number of non-domestic Building Energy Rating (BER) audits reported in 2022 when the number of completed audits was 11% higher than 2021. There were 1,042 BER audits reported in Q4 2022 compared with 1,151 in Q4 2021. This was a decrease of 9%. There were 70,877 non-domestic BER audits conducted in the period 2009 to 2022. Of the non-domestic BER audits conducted since 2009, 2% of buildings were awarded an A rating, 14% a B rating, and 32% were given a C rating.
Period of Construction
BER audits were conducted for 1,440 non-domestic buildings constructed between 2020 and 2022. More than one-third (36%) of these buildings received an A rating compared with 21% of non-domestic buildings constructed during 2015 to 2019.
Energy Efficiency
The most energy efficient building types audited during 2009-2022 were Schools and Colleges with 38% awarded an A rating. The second most energy efficient buildings were Nursing Residential Homes and Hostels with 12% rated A. The least energy efficient building types, defined by a G rating, were Workshops and Maintenance Depots (23%) followed by Other Buildings (19%).
Local Area Analysis
The highest proportion of A ratings was in County Kildare at 6%. County Kilkenny had the highest proportion of G rated buildings at 18%. Looking at Dublin postal districts, Dublin 4, Dublin 15, Dublin 16, and Dublin 20 had the highest proportion of A ratings at 4%. The highest proportion of G ratings was 18% in Dublin 8.
Floor Area
The average floor area of all audited non-domestic dwellings was 699 square metres. This average size varied from 3,197 square metres for Hotels to 288 square metres for Restaurants and Public Houses."