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Methodology Previous Releases
International comparison:
For more information on this release:
E-mail: sscu@cso.ie Justin Anderson (+353) 1 498 4316 Kieran Culhane (+353) 87 183 8704
For general information on CSO statistics:
information@cso.ie (+353) 21 453 5000 On-line ISSN

This release was compiled during the COVID-19 pandemic. The number of new domestic ESBN connections undertaken has been impacted in different ways since March 2020 from the varying restrictions associated with the pandemic. To show the effect of the pandemic and related restrictions over this period - and before - on the New Dwelling Completions, an additional monthly analysis has been included for this quarter's release. 

CSO statistical release, , 11am

New Dwelling Completions

Quarter 3 2021

 Number of new dwelling completions
 SingleSchemeApartmentTotals
Quarter 3 20201,4632,8677155,045
Quarter 3 20211,1982,4581,0004,656
 % change-18.1%-14.3%39.9%-7.7%

New Dwelling Completions fell 7.7% in Q3 2021

Figure 1: Number of new dwelling completions by type of dwelling Q1 2016 - Q3 2021
go to full release

There were 4,656 new dwelling completions in Q3 2021, which is 7.7% less than the 5,045 completions in the third quarter of 2020. 

The Q3 data for 2021 also shows that:

  • There was an increase in apartments compared to Q3 2020. There was an increase of 39.9% of apartment completions from 715 completions in Q3 2020 to 1,000 in Q3 2021.
  • There were 2,458 scheme dwellings completed this quarter, dropping 14.3% from 2,867 in Q3 2020. 
  • For single dwellings, there was an 18.1% fall in completions from 1,463 in Q3 2020  to 1,198 in Q3 2020.
  • Scheme dwellings make up over half of new dwelling completions. This dwelling type accounted for 52.8% of all new dwelling completions this quarter, while there were 25.7% single dwellings and 21.5% apartments. This compares with 56.8% scheme, 29.0% single and 14.2% apartments in Q3 2020. See Table 1.

Figure 1a details the monthly breakdown of new dwelling completions for the first three-quarters of 2019, 2020 and 2021. This shows that from a peak in June completions dropped in July and August in 2021 before rising to 1,706 in September. This is however still below the September figures of 1,838 and 1,893 in 2019 and 2020 respectively.

Month201920202021
Jan129815981195
Feb138915751411
Mar155917551323
Apr14543951456
May160112301549
Jun174616051984
Jul201417941496
Aug179313581454
Sep183818931706

ESB domestic connections dataset used as a primary source

The primary data source used for the New Dwellings Completions series is the ESB Networks new domestic connections dataset, where the date that the connection is energized determines the date of completion. It is accepted that the ESB domestic connections dataset is overestimating new dwellings and the CSO has adjusted for this overcount by using additional information from the ESB and other data sources.

ESB connections are classified into four categories: new dwelling completions, UFHDs (previously finished houses in UnFinished Housing Developments), reconnections and non-dwellings. The dwelling type (single, scheme, apartment) and urban-rural divide are defined by the ESB Network. See Background Notes and Methodology for a more detailed discussion of the classification.

The New Dwelling Completions series is based on the number of domestic dwellings connected by the ESB Network to the electricity supply and may not accord precisely with geographical boundaries.

The CSO has utilised other available data sources to validate and enhance the ESB connections dataset. However, this was only possible where the connections dataset could be confidently linked to another dataset using unique identifiers or by address matching. As the level of Eircode collection, coverage and storage increases across data sources in the housing sector, it is expected that the precision of estimates on new dwelling completions can be further enhanced.

Student accommodation

There has been a significant level of construction output in the student accommodation sector. These are generally connected to the ESB Network as commercial connections and are therefore not included in the ESB domestic connections dataset used for the new dwelling completions. The data available on this sector is on a “bed space” basis and it is not currently possible to report on it as dwellings, which are self-contained units of living accommodation. Based on consultation with stakeholders in this sector, student accommodation may be included in future New Dwelling Completions reports as a separate category. There were 360 bed spaces completed in the student accommodation sector in Q3 2021. Total completed bed spaces since Q2 2016 stand at 11,121.

New dwelling completions fell less in urban than rural areas in Q3 2021

The ESB domestic connections dataset provides information on the type of connection and whether it is in an urban or rural area. In Q3 2021 the number of completions in urban areas fell 5.0% to 3,617 in Q3 2021 from 3,806 in Q2 2020. In rural areas, there was a greater relative drop of 16.1% from 1,239 in Q3 2020 to 1,039 this quarter. Over three-quarters (77.7%) of new dwelling completions in Q3 2021 were in urban areas with 22.3% being in rural areas. This compares to 75.4% urban and 24.6% rural in Q3 2020. See Table 2.

Kildare was the local authority with the highest number of completions in Q3 2021

There was a 12.1% year-on-year increase in completions in Dublin with 1,235 completions. compared to 1,102 in Q3 2020. The Midlands is the only other region with a year-on-year increase (4.2%) All other regions saw a decrease from Q3 2020, with the fall greatest at 26.4% in the South-West region falling from 914 in Q3 2020 to 613 in Q3 2021. See Figure 2.

The most apartment completions were in Dublin with 674 completed this quarter. This represents 67.4% of all apartments completed nationally. Of all completions in Dublin, 54.6% were apartments. The highest number of apartment completions by local authorities was in Dublin City (290) and Dún Laoghaire–Rathdown (256). There were also over 100 apartment completions in Fingal (106). Outside of Dublin, the highest number of apartment completions was in Kildare (86) followed by Wicklow (77). 

The Mid-East region accounts for 34.6% (850) of the total scheme dwellings in Q3 2021 with 16.6% (407) in Kildare alone. Kildare was the local authority with the highest total number of completions (541) followed by Cork County (396).

The highest number of single dwelling completions in this quarter was in the South-West region (207) followed closely by the West (197). The Border region had the highest proportion – 72.0% - of its completions being single dwellings. The local authority with the highest number of single completions is Cork County (145) followed by Galway County (105). See Table 3.

Classification into local authorities has taken into account boundary changes between Cork City and Cork County which came into effect in May 2019. All historical data within the tables below and the PxStat interactive tables have been revised to now be based on the new boundaries. However, data within archived releases have stayed as is. 

Year on Year Change
Border-18.4
Midlands4.2
West-8.6
Dublin12.1
Mid-East-7.6
Mid-West-12.1
South-East-12.7
South-West-26.4

Glencullen-Sandyford is the Local Electoral Area with most completions in Q3 2021

The Local Electoral Area with the highest number of new dwelling completions this quarter was Glencullen-Sandyford (179 completions), followed by Blanchardstown-Mulhuddart (172) and Maynooth (157). With the exception of Skibbereen-West Cork (79 completions), all of the top ten Local Electoral Areas with the most completions were in Dublin, Kildare or Meath. See Figure 3.

New dwelling completions by Local Electoral Area going back to the start of the series in 2011 by year and quarter can be viewed in the PxStat tables NDA05 and NDQ09. There is also data available by Eircode Routing Key by year and quarter in PxStat tables NDA01 and NDQ07.

New dwelling completions and ESB connections

There was a total of 5,635 domestic ESB connections in Q2. This was a decrease of 7.6% on the 6,096 connections in Q3 2020. The ESB domestic connections series continues to show a comparable trend to the NDC series compiled by the CSO as shown in Figure 4. The number of new dwelling completions as a percentage of total ESB domestic connections was 82.6% this quarter.

There are still some differences in volume between the two series. The starting point for the NDC series is the ESB domestic connections dataset, with adjustments made to account for previously finished houses in unfinished housing developments (UFHDs), reconnections and non-dwellings as shown in Figure 5 and Table 4.

New dwelling completionsESB connections
Q1 201619723150
Q2 201623943486
Q3 201624793874
Q4 201630164413
Q1 201727633902
Q2 201732594566
Q3 201737624991
Q4 201745545726
Q1 201834594457
Q2 201843925460
Q3 201846275739
Q4 201854296729
Q1 201942465279
Q2 201948015787
Q3 201956456679
Q4 201963767514
Q1 202049285919
Q2 202032303890
Q3 202050456096
Q4 202073298638
Q1 202139294988
Q2 202149896012
Q3 202146565635

Reconnections continue to account for about a tenth of ESB connections

A property that is reconnected to the ESB Network after having been disconnected for more than two years is assigned a new MPRN and is therefore included in the ESB connections datasets and here considered to be a reconnection. There were 616 reconnections in Q2 2021, down 11.1% from 693 in Q3 2020. Reconnections account for 10.9% of all ESB connections this quarter. 

The number of previously finished dwellings in unfinished housing developments (UFHDs) represents only 1.7% of all ESB domestic connections in Q3 2021 with 96 connections which is the lowest proportion since the series began in 2011. In Q3 2014, UFHDs accounted for 24.4% of connections. The number of non-dwellings - mostly farm buildings - has risen 10.3% from 242 in Q3 2020 to 267 in Q3 2021. See Figure 5 and Table 4.

UFHDReconnectionNon-dwelling
Q1 2016502480196
Q2 2016363521208
Q3 2016560637198
Q4 2016441716240
Q1 2017370551218
Q2 2017419653235
Q3 2017320689220
Q4 2017262632278
Q1 2018212570216
Q2 2018182649237
Q3 2018188709215
Q4 2018308753239
Q1 2019176597260
Q2 2019152640194
Q3 2019190627217
Q4 2019213741184
Q1 2020126623242
Q2 202078416166
Q3 2020116693242
Q4 2020240759310
Q1 2021143617299
Q2 2021128654241
Q3 202196616267

Highest number of reconnections in Mid-East region in Q2 2021

Table 5 shows the type of ESB connection by NUTS3 region in Q3 2021. The highest number of reconnections were in the Border region (111). The South-West region had the highest of UFHDs (21) and non-dwellings (46). Dublin has the highest proportion of connections being new dwelling completions (95.7%) with the Border region having the lowest (61.2%).

Average new dwelling size continues to fall

Figure 6 shows that the average new dwelling size is continuing to gradually fall year on year. The decline in the average new dwelling size index is driven by both an increase in the proportion of completed dwellings being apartments - 22% for the first three quarters of 2021 - and also a decrease in the size of single and scheme dwellings (see Table 6). The average new dwelling size index is obtained by linking ESB connections to BER assessment data from the SEAI for new dwelling completions (see Table 7 in Background Notes and Methodology for match rates).

Index (2016 = 100)
2011115.07749269059
2012118.73668978175
2013118.148890836266
2014108.131446866374
2015103.478029399378
2016100
201791.9895749346372
201889.4862581873726
201985.974096078778
202083.2291706830557
2021*79.3945394950394
Table 1: New dwelling completions by type of dwelling, 2011 - Q3 2021
Period SingleSchemeApartmentTotal
2011Q11,1564472721,875
2011Q21,1943802171,791
2011Q31,1973051851,687
2011Q41,2672261481,641
 Year4,8141,3588226,994
2012Q17972111231,131
2012Q2847194761,117
2012Q3868244931,205
2012Q49893151541,458
 Year3,5019644464,911
2013Q163817477889
2013Q27212811441,146
2013Q3727267391,033
2013Q48614332131,507
 Year2,9471,1554734,575
2014Q16253091601,094
2014Q27123652411,318
2014Q37285061701,404
2014Q49106151771,702
 Year2,9751,7957485,518
2015Q16596061061,371
2015Q27356741611,570
2015Q38798992552,033
2015Q49791,1151512,245
 Year3,2523,2946737,219
2016Q16989363381,972
2016Q28861,2562522,394
2016Q39731,2222842,479
2016Q41,0871,6462833,016
 Year3,6445,0601,1579,861
2017Q18711,4154772,763
2017Q21,0291,7764543,259
2017Q31,1222,0016393,762
2017Q41,2252,6886414,554
 Year4,2477,8802,21114,338
2018Q19672,0174753,459
2018Q21,1502,7594834,392
2018Q31,2102,8325854,627
2018Q41,3513,3637155,429
 Year4,67810,9712,25817,907
2019Q11,0852,5675944,246
2019Q21,3152,8256614,801
2019Q31,2713,3101,0645,645
2019Q41,3903,8101,1766,376
 Year5,06112,5123,49521,068
2020Q11,0942,8341,0004,928
2020Q28691,8375243,230
2020Q31,4632,8677155,045
2020Q41,5194,1271,6837,329
 Year4,94511,6653,92220,532
2021Q19672,2607023,929
2021Q21,1482,5441,2974,989
2021Q31,1982,4581,0004,656
Open in Excel: NDC2021Q3TBL1 (XLS 11KB)
Table 2: New dwelling completions by urban-rural divide, 2011 - Q3 2021
Period UrbanRuralTotal
2011Q18411,0331,874
2011Q27061,0811,787
2011Q36021,0851,687
2011Q44891,1521,641
 Year2,6384,3516,989
2012Q14157161,131
2012Q23687491,117
2012Q34257781,203
2012Q46028541,456
 Year1,8103,0974,907
2013Q1329560889
2013Q25346111,145
2013Q33986351,033
2013Q47747331,507
 Year2,0352,5394,574
2014Q15405541,094
2014Q27166021,318
2014Q37956091,404
2014Q49127901,702
 Year2,9632,5555,518
2015Q18325391,371
2015Q29526181,570
2015Q31,2817512,032
2015Q41,4208242,244
 Year4,4852,7327,217
2016Q11,4075651,972
2016Q21,6577372,394
2016Q31,6708092,479
2016Q42,1129043,016
 Year6,8463,0159,861
2017Q12,0587052,763
2017Q22,4118483,259
2017Q32,8269363,762
2017Q43,5809744,554
 Year10,8753,46314,338
2018Q12,6637963,459
2018Q23,4239694,392
2018Q33,6329954,627
2018Q44,2911,1385,429
 Year14,0093,89817,907
2019Q13,3578894,246
2019Q23,6801,1214,801
2019Q34,5851,0605,645
2019Q45,2001,1766,376
 Year16,8224,24621,068
2020Q13,9979314,928
2020Q22,4587723,230
2020Q33,8061,2395,045
2020Q46,0421,2877,329
 Year16,3034,22920,532
2021Q13,1218083,929
2021Q24,0009894,989
2021Q33,6171,0394,656
Open in Excel: NDC2021Q3TBL2 (XLS 11KB)
Table 3: New dwelling completions by type of dwelling and Local Authority - Q3 2021 1
Local AuthoritySingleSchemeApartmentTotal - Q3 2021
Border1855418257
Cavan2715345
Donegal91119111
Leitrim1115026
Monaghan340337
Sligo2213338
West19715134382
Galway City8212049
Galway County1058110196
Mayo5724283
Roscommon2725254
Mid-West15212225299
Clare6620086
Limerick448916149
Tipperary4213964
South-East13022826384
Carlow1132346
Kilkenny3934275
Waterford288811127
Wexford527410136
South-West20742640673
Cork City1112716154
Cork County1452501396
Kerry514923123
Dublin595026741,235
Dublin City1378290381
Dún Laoghaire–Rathdown2047256323
Fingal16269106391
South Dublin1010822140
Mid-East1768501771,203
Louth431119163
Kildare4840786541
Meath602035268
Wicklow2512977231
Midlands921256223
Laois27794110
Longford150217
Offaly2134055
Westmeath2912041
1 Local Authority based on substation of dwelling where available
Open in Excel: NDC2021Q3TBL3 (XLS 10KB)
Table 4: ESB by Type of connection, 2011 - Q3 2021
Period NDCUFHDReconnectionNon-DwellingTotal
2011Q11,8753832412052,704
2011Q21,7913312242092,555
2011Q31,6873262991952,507
2011Q41,6413383262182,523
 Year6,9941,3781,09082710,289
2012Q11,1312783021791,890
2012Q21,1173572941961,964
2012Q31,2054312711632,070
2012Q41,4583853931852,421
 Year4,9111,4511,2607238,345
2013Q18893542801561,679
2013Q21,1463233471611,977
2013Q31,0333933921441,962
2013Q41,5074364541922,589
 Year4,5751,5061,4736538,207
2014Q11,0944223981652,079
2014Q21,3186275602152,720
2014Q31,4047166491632,932
2014Q41,7026036832103,198
 Year5,5182,3682,29075310,929
2015Q11,3713427421792,634
2015Q21,5704537462102,979
2015Q32,0333846701943,281
2015Q42,2454927302623,729
 Year7,2191,6712,88884512,623
2016Q11,9725024801963,150
2016Q22,3943635212083,486
2016Q32,4795606371983,874
2016Q43,0164417162404,413
 Year9,8611,8662,35484214,923
2017Q12,7633705512183,902
2017Q23,2594196532354,566
2017Q33,7623206892204,991
2017Q44,5542626322785,726
 Year14,3381,3712,52595119,185
2018Q13,4592125702164,457
2018Q24,3921826492375,460
2018Q34,6271887092155,739
2018Q45,4293087532396,729
 Year17,9078902,68190722,385
2019Q14,2461765972605,279
2019Q24,8011526401945,787
2019Q35,6451906272176,679
2019Q46,3762137411847,514
 Year21,0687312,60585525,259
2020Q14,9281266232425,919
2020Q23,230784161663,890
2020Q35,0451166932426,096
2020Q47,3292407593108,638
 Year20,5325602,49196024,543
2021Q13,9291436172994,988
2021Q24,9891286542416,012
2021Q34,656966162675,635
Open in Excel: NDC2021Q3TBL4 (XLS 13KB)
Table 5: ESB by type of connection and NUTS3, Q3 2021 1
RegionNew dwelling completionsUFHDReconnectionNon-DwellingTotal ESB connections
Border2571611136420
Dublin1,235241121,290
Mid-East1,2038102411,354
Midlands22354928305
Mid-West299195939416
South-East384145223473
South-West673219446834
West3821110842543
Total regions4,656966162675,635
1 NUTS3 region based on substation of dwelling where available   
Open in Excel: NDC2021Q3TBL5 (XLS 12KB)
Table 6: New dwelling completions by average floor size, 2011 - Q3 2021
 2011201220132014201520162017201820192020Q1-Q3 2021
Estimated weight in mix (%).
Single69%71%64%54%45%37%30%26%24%24%24%
Scheme19%20%25%33%46%51%55%61%59%57%53%
Apartment12%9%10%14%9%12%15%13%17%19%22%
 
Estimated average size of dwelling (sqm) 
Single231232239224219230226223225219209
Scheme108115125142137135129126123120114
Apartment7369777584778283838080
 
Average dwelling size (sqm)188.2194.1193.2176.8169.2163.5150.4146.3140.6136.1129.8
Average dwelling size index (2016 = 100)1151191181081031009289868379
% change 3.2%-0.5%-8.5%-4.3%-3.4%-8.0%-2.7%-3.9%-3.2%-4.6%
Open in Excel: NDC2021Q3TBL6 (XLS 11KB)

Background Notes and Methodology

Scope and Background

The New Dwelling Completions series is produced by the CSO on a quarterly basis. A Housing Analytics Group (HAG) was established in 2017 by the Department of Housing, Planning and Local Government (DHPLG). This group, which met for the first time in May 2017, consists of representatives of bodies with a significant interest and role in housing, housing policy and related policy areas. 

The HAG focused on a review of housing related data published nationally and in particular on the number of dwellings built every year. Arising from the work of this group and other direct discussions between the CSO and DHPLG, a significant outcome was to assess the suitability of current housing indicators for estimating the number of new dwelling completions in Ireland.

Historically, the number of new dwellings built in Ireland, as published by the DHPLG, was based on the number of connections to the ESB Network. However, in recent years it became apparent that this series was overestimating the levels of new dwelling construction in Ireland. The New Dwelling Completions series will look to replace this and other available indicators of housing activity in Ireland. This series will include information on dwelling type, urban/rural location, activity by Local Authority and by Eircode Routing Key (and now Local Electoral Area). It will continue to be based on domestic ESB connections but will correct for over-coverage by using additional information from ESB Networks and incorporating data from other sources. It also includes data on the number of reconnections and on houses from unfinished housing developments that are coming back into use. This will provide policy-makers with a valuable insight into the number of new dwellings available for occupation in the quarterly period concerned and also show data on the numbers of dwellings being constructed.

Geographic Split

The New Dwelling Completions data series is based on the number of new dwellings connected by the ESB Network to the electricity supply and may not accord precisely with geographical boundaries. The NDC series is split into local authorities, Eircode Routing Keys and Local Electoral Areas based on the information of the substation rather than the exact location of the dwelling. As Eircode becomes available as the unique identifier, it will replace the source of identifying the location of a new dwelling. 

The breakdown of ESB connections by type of connection and dwelling is based on NUTS3 regions as described below:

  • Border: Cavan, Donegal, Leitrim, Monaghan, Sligo
  • Dublin: all four local authorities within Dublin
  • Mid-East: Kildare, Louth, Meath, Wicklow
  • Midlands: Laois, Longford, Offaly, Westmeath
  • Mid-West: Clare, Limerick, Tipperary
  • South-East: Kilkenny, Waterford, Wexford
  • South-West: Cork City and County, Kerry
  • West: Galway City and County, Mayo, Roscommon

Classification

ESB connections are classified into four categories:

  • New dwelling completion: Recently constructed dwelling, where a dwelling is a self-contained unit of living accommodation.
  • Reconnection: A dwelling that has been reconnected to the ESB Network after a period of two years of disconnection.
  • UFHD: Connection to the ESB Network of previously completed dwellings in Unfinished/Ghost estates. A methodology was developed to identify houses that were complete in 2011 and were subsequently connected to the ESB Network. Although these dwellings may have required finishing to become available for use they are not new dwelling completions for the purposes of this publication. However, dwellings in Unfinished/Ghost estates which were not in a complete state in 2011 are included as new dwelling completions on connection to the ESB Network.
  • Non-dwelling: A building connected to the ESB Network through a domestic connection that is not constructed for residential use. 

The dwelling type is defined by the ESB Network and classified into three categories:

  • Single: If a single domestic dwelling or farm premises is to be connected to the ESB Network, Form NC2 (through an online application system) must be completed and the dwelling is defined as 'single'.
  • Scheme: If a new multi-unit development with two or more houses is to be connected to the ESB Network, Form NC1 (through an online application system) must be completed and each dwelling is defined as a 'scheme'. 
  • Apartment: If a new multi-unit development with two or more apartments is to be connected to the ESB Network, Form NC1 (through an online application system) must be completed and each dwelling is defined as 'apartment'.

The classification of urban and rural dwellings is also defined by the ESB Network and based on the Distribution Use of System (DUoS) tariff, which is a fee that ESB Networks charge Electricity Suppliers for use of the Electricity Distribution System1

  • Urban: DUoS Group = DG1, urban domestic.
  • Rural: DUoS Group = DG2, rural domestic.

Coverage

Only domestic connections where a dwelling is a self-contained unit of living accommodation are included in the New Dwelling Completions series. Commercial properties, shared and communal living arrangements are excluded.

Revisions

The New Dwelling Completions series is a new statistical product compiled from third party data sources. The series will be revised on an ongoing basis as more timely and accurate data sources become available and these data sources can be matched to the ESB new connections data set. BER Assessment data is used to validate the status of New Dwelling Completions, reconnections, UFHDs and non-dwellings. This will result in regular revisions to previous quarters due to the time lag between ESB connections and BER assessment. Historical data within the current release and PxStat interactive tables are impacted by revisions but data within archived releases has not been revised.

Data sources

The primary data source used for the New Dwellings Completions series is the ESB domestic connections dataset where the date that the connection is energized determines the date of completion. It is accepted that the ESB domestic connections dataset overestimates new dwellings and the CSO has adjusted for this overcount by using additional information from the ESB and other data sources. The ESB domestic connections dataset is matched by the CSO to Building Energy Rating (BER) data, compiled by the Sustainable Energy Authority Ireland (SEAI). Under the Statutory Instrument (S.I.) No. 243 of 2012, all residential property for sale must disclose their BER assessment (with some very minor exceptions). The BER includes detailed information on the type of dwelling, the type of certificate (Provisional, Final, Existing) as well as the date of assessment and construction. As the collection, storage and maintenance of Eircode improve, other data sources can be further consulted to improve the accuracy of the series.

Average New Dwelling Size Index

The average new dwelling size index is based on measurements of the total floor area recorded by a BER Assessor in accordance with the BER Regulations, the BER Assessor's Code of Practice and all other directions issued by the SEAI2. As an MPRN, the unique identifier for an ESB connection is required for the BER certification process it is possible to link new housing completions data to BER certificates to produce the index. The match rate between new dwelling completions and BER certificates is consistently highest among scheme dwellings. Table 7 shows the percentage of new dwelling completions that can be matched to a BER certificate by dwelling type and year. Between 2015 and 2020, 95% of scheme dwellings had a BER certificate compared to about a quarter of single dwellings. The match rate for apartments has increased in recent years and stood at 82% in 2020.

Table 7: New dwelling completions and BER match rate, 2011 - Q3 2021
PeriodSingleSchemeApartmentOverall match rate
201116%74%46%31%
201216%79%29%29%
201317%80%48%36%
201417%87%61%46%
201522%90%28%53%
201624%90%50%61%
201725%94%69%69%
201823%94%68%72%
201925%95%77%75%
202023%95%82%75%
Q1-Q3 20218%84%57%59%

While the time lag between connection to the ESB network and BER assessment can explain missing BER certificates, the data in Table 7 indicates that there are additional factors at play for single dwellings and apartments.

The low match rate for single dwellings is due to the large number of self builds where dwellings are not intended for sale or rent, similarly, the low match rate for apartments can be explained by dwellings not intended for sale. These include conversions from single dwellings as well as social housing and developments in the build-to-rent sector. Such developments will often have a range of provisional BER certificates or a partial number of BERs for the development without having a final BER for all properties. 

1 Rules for Application of DUoS Tariff Group

2 BER Assessor Support

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