There was an increase of 9% in the number of non-domestic Building Energy Rating (BER) audits reported between January and March (Q1) 2023 compared with Q1 2022 (see Table 1).
Of the non-domestic BER audits conducted on buildings since 2009, 3% 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 2023 received an A rating compared with 21% built between 2015-2019 (see Table 13).
The most energy efficient building type audited during 2009-2023 was Schools and Colleges with 40% 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 15 had the highest proportion of A rated non-domestic buildings at 5% (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 | % change | ||||||
| Period | 2019 | 2020 | 2021 | 2022 | 2023 | 2023/2022 | |
| January | 262 | 283 | 289 | 257 | 314 | 22% | |
| February | 362 | 374 | 277 | 399 | 325 | -19% | |
| March | 423 | 303 | 274 | 366 | 473 | 29% | |
| Quarter 1 | 1,047 | 960 | 840 | 1,022 | 1,112 | 9% | |
| X-axis label | 2021 | 2022 | 2023 |
|---|---|---|---|
| January | 289 | 257 | 314 |
| February | 277 | 399 | 325 |
| March | 274 | 366 | 473 |
| April | 298 | 391 | |
| May | 310 | 364 | |
| June | 270 | 335 | |
| July | 355 | 411 | |
| August | 385 | 421 | |
| September | 382 | 464 | |
| October | 399 | 309 | |
| November | 444 | 436 | |
| December | 308 | 301 |
| BER Ratings | |
| A | 1.828 |
| B | 9.757 |
| C | 22.899 |
| D | 14.71 |
| E | 7.81 |
| F | 4.587 |
| G | 8.948 |
| A | B | C | D | E | F | G | |
| Retail | 1 | 14 | 37 | 17 | 9 | 7 | 14 |
| Office | 2 | 9 | 30 | 24 | 13 | 8 | 15 |
| Restaurant/public house | 0 | 8 | 32 | 35 | 16 | 6 | 4 |
| Hotel | 3 | 22 | 41 | 21 | 7 | 3 | 3 |
| Warehouses | 1 | 17 | 33 | 19 | 10 | 6 | 14 |
| Workshops/maintenance depot | 0 | 10 | 23 | 22 | 14 | 10 | 23 |
| Industrial process building | 3 | 32 | 26 | 16 | 10 | 3 | 9 |
| Hospitals and primary health care | 9 | 15 | 25 | 20 | 13 | 8 | 11 |
| Community/day centre | 8 | 24 | 30 | 17 | 9 | 5 | 9 |
| Nursing residential homes and hostels | 12 | 41 | 28 | 12 | 4 | 1 | 2 |
| Schools and colleges | 40 | 23 | 18 | 12 | 4 | 2 | 3 |
| Sports facilities | 3 | 29 | 30 | 18 | 7 | 6 | 8 |
| Other | 10 | 19 | 21 | 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 | 22 | 28 | 18 | 9 | 5 | 11 |
| 2015-2019 | 21 | 35 | 18 | 9 | 4 | 2 | 11 |
| 2020-2023 | 36 | 18 | 14 | 10 | 5 | 4 | 13 |
Learn about our data and confidentiality safeguards, and the steps we take to produce statistics that can be trusted by all.
Statistician's Comment
The Central Statistics Office (CSO) has today (18 April 2023) released Non-Domestic Building Energy Ratings for Q1 2023.
Commenting on the release Dympna Corry, Statistician in the Environment and Climate Division, said: "There were 1,112 Building Energy Rating (BER) audits reported between January and March (Q1) 2023 compared with 1,022 in Q1 2022. There was a 22% increase in the number of non-domestic BER audits reported in January 2023 when compared with January 2022. The number of non-domestic BER audits decreased in February 2023 which was 19% lower than February 2022, while March 2023 rates were 29% greater than March 2022. There were 71,996 non-domestic BER audits conducted in the period 2009 to 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 32% were given a C rating (see Table 3).
Period of Construction
BER audits were conducted for 1,663 non-domestic buildings constructed between 2020 and 2023. More than one-third (36%) of these buildings received an A rating compared with 21% 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 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%) (see Table 3).
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% (see Table 4). Looking at Dublin postal districts, Dublin 15 had the highest proportion of A ratings at 5% followed by 4% for Dublin 4, Dublin 11, and Dublin 16. The highest proportion of G ratings was 19% in Dublin 8 (see Table 5).
Floor Area
The average floor area of all audited non-domestic dwellings was 704 square metres. This average size varied from 3,171 square metres for hotels to 288 square metres for Restaurants and public houses (see Table 10)."