Back to Top

 Skip navigation

CSO statistical release, , 11am

Non-Domestic Building Energy Ratings

Quarter 4 2021

Table A: Number of Non-Domestic BER certificates
Period20172018201920202021% change 2021/2020
Quarter 11,5731,3051,047956840-12%
Quarter 21,4471,2151,09644487798%
Quarter 31,5361,1311,0708791,12228%
Quarter 41,6081,0091,0331,0241,1209%

Non-domestic BER audits in 2021 were 20% higher than in 2020

Figure 1: Number of Non-Domestic BER Certificates published in 2019-2021
go to full release

There was an increase in the number of non-domestic Building Energy Rating (BER) audits reported in 2021 when the number of completed audits was 20% above the number in 2020 (see Table A, Table 1, Figure 1 and Information Note). There were 1,120 BER audits reported in quarter four 2021 compared with 1,024 in quarter four 2020. This is an increase of 9% (see Table A).

BER audits were conducted for 1,623 non-domestic buildings constructed between 2015 and 2021 (see Table 13). Over one fifth (21%) of these buildings received an “A” rating compared with 8% of non-domestic buildings constructed during 2010 to 2014 (see Figure 4). In contrast, 98% of domestic dwellings constructed between 2015-2021 received an "A" rating (separate CSO release). 

There were 66,393 non-domestic BER audits conducted in the period 2009 to 2021 (see Table 1). The profile of non-domestic BER audits conducted since 2009 was 2% awarded an "A" rating, 13% a "B" rating, and 34% with a “C” rating (see Table 3).

The most energy efficient building types audited during 2009-2021 were Schools and colleges with 31% awarded an “A” rating (see Table 3). The second most energy efficient buildings were Nursing residential homes and hostels with 10% rated “A”. The least energy efficient building types, defined by a “G” rating, were Workshops and maintenance depots (23%) followed by Other Buildings (20%) (see Figure 3).

The highest proportion of combined “A” and “B” ratings was in County Kildare at 22% (see Table 4). County Kilkenny had the highest proportion of “G” rated buildings at 18% (see Table 4).

In Dublin city, Dublin 15 had the highest proportion of combined “A” and “B” ratings at 24% followed by 19% for Dublin 13 and Dublin 18 (see Table 5). The highest proportion of “G” ratings was 18% in Dublin 6W and Dublin 8 (see Table 5).

The average floor area of all audited non-domestic dwellings was 692 square metres (see Table 10). This average size varied from 3,223 square metres for hotels to 291 square metres for Restaurants and public houses.

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. The period of construction is not yet available for audits undertaken in 2020-2021. This information will be added when it becomes available.