Back to Top

Central Statistics Office

Gaeilge

 Skip navigation

Extra information
Methodology Previous Releases
International comparison:
See also:
YouTube Video
For more information on this release:
E-mail: environment@cso.ie Linh Trieu Nolan (+353) 1 4984209 Berna Lawlor (+353) 1 4984210
For general information on CSO statistics:
information@cso.ie (+353) 21 453 5000 Visit StatCentral.ie, the portal to Ireland's official statistics On-line ISSN 2009-9304
CSO statistical release, 28 November 2016, 11am

Non-Domestic Building Energy Ratings

Quarter 3 2016

% of row 
Building Type (2009-2016)Energy Rating Total
ABCDEFG
Retail0144216961215,877
Office0103225137129,348
Restaurant/public house07303618643,840
Hotel0144227943587
Warehouses018331996145,686
Workshops/maintenance depot01024241310191,520
Industrial process building2352616939947
Hospitals and primary health care4162320151012673
Community/day centre32332171069626
Nursing residential homes and hostels6402916413297
Schools and colleges22282217524586
Sports facilities2292917868361
Other116251813819680
Total11435211161141,028

50% of non-domestic buildings received a building energy rating of "C" or higher

Non-Domestic Building Energy Ratings Q3 2016 Headline Graph
go to full release

At an overall level, 1% of buildings that received a non-domestic energy performance assessment were awarded an "A" rating, followed by 14% receiving a "B" rating and 35% with a “C” rating. A further 21% of buildings receiving a “D” rating (see Table 3). Retail units (39%) and Office units (23%) were the pre-dominant building types that have had a non-domestic building energy rating audit undertaken: 42% of Retail units received a "C" rating while 32% of Office units received a "C" rating.

22% of schools and colleges were awarded an “A” rating. (see Table 3). In contrast a high proportion of “G” ratings were awarded to: Workshops and maintenance depots (19%); Warehouses (14%); Hospitals and primary health care buildings (12%); Retail units (12%); and Office buildings (12%). 

Four counties had a combined “A” and “B” rating of 20% or higher: Offaly and Carlow (both 21%); and Laois and Kildare (both 20%). In contrast Leitrim and Sligo at 9% each, and Limerick City at 8%, had the lowest proportion of combined “A” and “B” ratings (see Table 4). Dublin 15 at 26% had the highest proportion of combined “A” and “B” ratings (see Table 5).

Kilkenny and Sligo at 18% each had the highest proportion of “G” rated buildings (see Table 4).

Electricity was the most prevalent heating system accounting for 62% of all buildings followed by Mains gas at 25% and Heating oil at 10% (see Table 8). Electricity was the main heating system for 79% of Retail units.

Table 10 shows the average floor area classified by Building type and County. Hotels at 3,412 square metres and Industrial process buildings at 2,790 square metres had the highest average floor area. Retail units had both the highest average primary energy use as well as average carbon dioxide emissions (see Tables 11 and 12). 

ABCDEFG
Retail0.44718775587327613.648674182780142.476538388864416.48296277634318.805189897335776.1409586193865311.9984883794168
Office0.4492939666238779.7560975609756131.942661531878525.213949507916112.95464270432187.3812580231065512.3020967051776
Restaurant/public house0.156256.79687529.687535.833333333333317.656255.885416666666673.984375
Hotel0.34071550255536614.139693356047742.248722316865427.4275979557078.517887563884164.258943781942083.0664395229983
Warehouses0.19345761519521618.448821667252933.010903974674619.34576151952169.497010200492445.8037284558564913.7003165670067
Workshops/maintenance depot0.1315789473684219.5394736842105323.684210526315823.552631578947413.486842105263210.131578947368419.4736842105263
Industrial process building2.2175290390707535.48046462513226.082365364308315.73389651531158.975712777191132.74551214361148.76451953537487
Hospitals and primary health care3.5661218424962915.898959881129323.179791976225920.356612184249614.710252600297210.401188707280811.8870728083209
Community/day centre3.0351437699680523.48242811501631.789137380191716.61341853035149.74440894568696.389776357827488.94568690095847
Nursing residential homes and hostels6.397306397306440.067340067340128.95622895622916.16161616161624.377104377104380.6734006734006733.36700336700337
Schools and colleges22.354948805460827.986348122866921.672354948805517.23549488054614.948805460750852.218430034129693.58361774744027
Sports facilities2.4930747922437729.362880886426628.531855955678716.89750692520788.310249307479226.094182825484768.31024930747922
Other1.3235294117647115.73529411764712518.235294117647112.79411764705888.3823529411764718.5294117647059
A-BCDEFG
Mains Gas22321910414
Heating Oil1735281244
Electricity11372111812
LPG313917832
Other27242013710
Table 1 Building Energy Ratings Certificates (Non-Domestic) 2009-2016
         number
Period20092010201120122013201420152016Total
January451941501934445906343992,649
February1473261661569466217435533,658
March2072282012248487408076473,902
April1652301621788617966336653,690
May2401892012047888836616463,812
June3481841981637668576865973,799
July4081931902437528415945613,782
August2662871732135757855635873,449
September2652212182456939986736833,996
October236206207289862882682 3,364
November307303223328713964571 3,409
December337193211309574853467 2,944
 
Total2,9712,7542,3002,7458,8229,8107,7145,33842,454
          
Table 2 Building Energy Ratings by Year (Non-Domestic) 2009-2016
              number
YearEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
200928117241385447362278278224106851401282,819
201021551812663453562873052051271221291732,572
20114666120208292237214270164110941281412,090
201237511132033753332843242501721181542172,631
2013481153495851,1231,0958681,0358154953595411,0388,466
2014431163066651,2171,1459001,2059096155126511,2899,573
2015841322655229369217218836964994035171,0377,616
201659841713876066244776434873633063706845,261
               
Total3667361,7463,2215,3415,0734,0294,9433,7502,4871,9992,6304,70741,028
               
Table 3 Building Energy Ratings by Type of Building (Non-Domestic) 2009-2016
             % of row
Building TypeEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
Retail0149181591075461215,877
Office0236911121412767129,348
Restaurant/public house0124811111917117643,840
Hotel016713151417116243587
Warehouses0261013129118556145,686
Workshops/maintenance depot013688814108610191,520
Industrial process building213121012861155439947
Hospitals and primary health care4466888119781012673
Community/day centre33101114117985469626
Nursing residential homes and hostels6814181298794113297
Schools and colleges22810109761072324586
Sports facilities27101213881076268361
Other1466108711758819680
               
Total12481312101296561141,028
               
Table 4 Building Energy Ratings by County (Non-Domestic) 2009-2016
            % of row
CountyEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
Carlow038101713109754311506
Dublin 01-24124713121013106561111,387
Dublin County1248161210129556102,927
Kildare3359131310108555111,695
Kilkenny138713107101055418634
Laois124131312711775314475
Longford11591113911987710312
Louth124611128147668141,096
Meath1269131211118546131,381
Offaly1371011121014544612458
Westmeath02681613811106559945
Wexford114712139109678141,100
Wicklow1341113118128656111,197
Clare0236121291212668121,191
Cork City013711148121275615375
Cork County124813141112964693,647
Kerry01410131491110547121,054
Limerick City 13413137151085913370
Limerick County014813139139667121,501
Tipperary1231017111099656101,059
Waterford City01481515101087598483
Waterford County12791311810855515632
Galway City214510151212967511440
Galway County12471113101110648122,008
Leitrim1 1711121221117478165
Mayo1158131110128657131,085
Roscommon01571111912995912379
Sligo10351610911973718631
Cavan01471411812886714500
Donegal1359101310138865101,021
Monaghan1349118911666717374
               
Total12481312101296561141,028
               
Table 5 Building Energy Ratings by Dublin Postal District (Non-Domestic) 2009-2016
            % of row
CountyEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
Dublin 101261311101510639151,016
Dublin 21134912111412869111,818
Dublin 3 2269171216664713253
Dublin 4124591013151176710510
Dublin 501281313911765517231
Dublin 6014711109812871112353
Dublin 6W1 118168139106918160
Dublin 71235131111131165614483
Dublin 8113412101113976716698
Dublin 911591414131476466444
Dublin 101257816712811958190
Dublin 11 25711161112129457495
Dublin 120136121111171075710952
Dublin 13 13121411121196948156
Dublin 14026815129111153710361
Dublin 1513616181791173234853
Dublin 16 14413119111564714158
Dublin 1703272412101096438223
Dublin 1806591013121496348639
Dublin 202 96413913132991347
Dublin 22017101616111384346459
Dublin 241339171210121053412888
               
Total124713121013106561111,387
               
Table 6 Building Energy Ratings by Main Space Heating System Fuel (Non-Domestic) 2009-2016
            % of row
Heating System FuelEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
Mains Gas23710131091085441410,346
Heating Oil1358131210161275444,063
Electricity01371313101296581225,491
LPG2412131612111075332764
Other48510810610976710364
               
Total12481312101296561141,028
               
Table 7 Main Space Heating System Fuel by County (Non-Domestic) 2009-2016
     % of row 
CountyHeating System FuelTotal
Mains GasHeating OilElectricityLPGOther
Carlow2596221506
Dublin 01-24374580011,387
Dublin County35460002,927
Kildare26766111,695
Kilkenny27135721634
Laois23175712475
Longford7216371312
Louth29862101,096
Meath291159111,381
Offaly16196122458
Westmeath19166131945
Wexford81570521,100
Wicklow27961111,197
Clare211857311,191
Cork City28467.1375
Cork County23866213,647
Kerry81470621,054
Limerick City24273..370
Limerick County24965111,501
Tipperary181861211,059
Waterford City3256022483
Waterford County2296522632
Galway City878310440
Galway County101374312,008
Leitrim6285952165
Mayo82066411,085
Roscommon11245853379
Sligo8186761631
Cavan14205691500
Donegal92855621,021
Monaghan16205653374
       
Total2510622141,028
       
Table 8 Main Space Heating System Fuel by Type of Building (Non-Domestic) 2009-2016
     % of row
Building TypeHeating System FuelTotal
Mains GasHeating OilElectricityLPGOther
Retail164791115,877
Office32760119,348
Restaurant/public house282441523,840
Hotel453012121587
Warehouses311156205,686
Workshops/maintenance depot241358421,520
Industrial process building29283732947
Hospitals and primary health care28135622673
Community/day centre33263552626
Nursing residential homes and hostels393016123297
Schools and colleges40272453586
Sports facilities4094352361
Other28125442680
       
Total2510622141,028
       
Table 9 Main Ventilation System by Type of Building (Non-Domestic) 2009-2016
   % of row 
Building TypeMain Ventilation SystemTotal
Air ConditioningMechanical VentilationNatural Ventilation
Retail4744915,877
Office356599,348
Restaurant/public house3411553,840
Hotel27964587
Warehouses146815,686
Workshops/maintenance depot135821,520
Industrial process building181270947
Hospitals and primary health care19774673
Community/day centre8786626
Nursing residential homes and hostels 793297
Schools and colleges6985586
Sports facilities301555361
Other19576680
     
Total3466041,028
     
Table 10 Average Floor Area by Type of Building and County (Non-Domestic) 2009-2016
              m2
CountyRetailOfficeRestaurant/ public houseHotelWarehousesWorkshops/ maintenance depotIndustrial process buildingHospitals and primary health careCommunity/ day centreNursing residential homes and hostelsSchools and collegesSports facilitiesOtherAll building types
Carlow4713533792,9439125623,4222402162551,073656936624
Dublin 01-243691,0833394,1741,3465962,3657063871,1741,6561,360872868
Dublin County2465063615,3661,2361,4134,7744995541,9492,4191,1071,434658
Kildare2443443714,2239805195,7506552462,2331,5031,398527610
Kilkenny2942802913,2771,1686231,6172052241,330710544150507
Laois3612182785,7959106134,7025642621,8152,2611,4891,797641
Longford2402342521,4451,4017517,3814864362,019574707236616
Louth3325893204,3971,3065724,3531922071,4811,5132,390959726
Meath2483533044,2989095161,6466152891,6681,338959237546
Offaly3224502379208585921,6741812911,3114,057280105575
Westmeath3244272422,3891,2535712,7847452671,1062,0101,177436551
Wexford2984972692,8399677462,1933313367881,855794534544
Wicklow2083352672,2608184982,3895622901,2981,853606217484
Clare2285092982,4158954612,3912352285701,236303496605
Cork City3716242062,9181,38643041115197 709948564547
Cork County2806112704,1729904593,1134563361,4301,386690702583
Kerry2822802703,0656643033,2574262766871,246467343495
Limerick City2654192847,6309913681,566354483 8549412,375533
Limerick County2884632864,5451,2474523,4979873331,8352,3531,141528698
Tipperary3223852442,7221,8384093,4904283661,3391,356629176663
Waterford City2924943642,5868497171,904144735970480238929524
Waterford County3402732632,7061,3767283,9481871548351,776754346672
Galway City2903642272,2355973643,5793707661,4902,957503843556
Galway County2684012743,0251,1664621,7292122311,9581,283688409558
Leitrim2571,1172821,315605585878 2708691,169 44546
Mayo2742442894,0271,0047321,9697502391,271590624581501
Roscommon2405022471,9549466355,3971,1766611,161437634393512
Sligo3403322811,5069733773,3257712562,1371,5101,018934559
Cavan2433862373,1586233541,7094033741,764866707398430
Donegal2612983092,3001,1454112,879569395904834583336558
Monaghan3131563763,6031,0018041,3731426631,4841,8521,0111,450565
               
All3026952993,4121,1585922,7905103371,3501,524966679664
               
Table 11 Average Primary Energy Use by Type of Building and County (Non-Domestic) 2009-2016
              kWh/m2/year
CountyRetailOfficeRestaurant/ public houseHotelWarehousesWorkshops/ maintenance depotIndustrial process buildingHospitals and primary health careCommunity/ day centreNursing residential homes and hostelsSchools and collegesSports facilitiesOtherAll building types
Carlow1,3135898306378137471,076495452248183597742942
Dublin 01-241,0985201,0636624336468174255024492851,236971621
Dublin County1,0865361,0166213466487664573164351391,031740606
Kildare1,2367338911,0044476717032944254781868911,173741
Kilkenny1,2699739076024316426325103974583061,425831794
Laois1,594901955501442750996230453443137987948869
Longford1,1761,0931,162707511952847323734314234627810796
Louth1,098597976656760817905680578404111751669799
Meath1,2105051,0056296869597972623344752151,818713763
Offaly9154529485715918266074154963941421,153872622
Westmeath1,0257349887504761,6575914164354121575821,410743
Wexford1,7285439678415341,0265107841,3549851521,1721,266914
Wicklow991612930882399615576377523591155885816626
Clare1,2005989396626597397321,9437256355661,367880767
Cork City993480975525663886458723624 414965627727
Cork County1,1585411,0166665175865394785026081651,030848686
Kerry1,0377129836606526491,0255113954702221,012776790
Limerick City1,0621,0301,058502775790909533573 281708337826
Limerick County1,0768041,0597137586579484774323641377701,805842
Tipperary9677599307154197348123164013442327331,074694
Waterford City1,4925911,0746133965998684912421552531,129881778
Waterford County1,0946601,1417036275514666147813851921,051762713
Galway City9386351,2426205307568913062862681351,191828702
Galway County1,175673903595759714869482409343216841855779
Leitrim7746858627621,029729971 543496166 1,356716
Mayo1,1517949015635506727322423114453486262,764804
Roscommon1,4834191,1926076046216172848094214101,157735798
Sligo1,7319809615981,0226178884705085342501,3004541,054
Cavan1,0606151,064643679763809353598498337820950768
Donegal1,0426461,011632663605638337388604210852936723
Monaghan1,1255618549115591,364614575342324212929224751
               
All1,1525609996735177007584305034662101,048941702
               
Table 12 Average Carbon Dioxide Emissions by Type of Building and County (Non-Domestic) 2009-2016
              kgCO2/m2/year
CountyRetailOfficeRestaurant/ public houseHotelWarehousesWorkshops/ maintenance depotIndustrial process buildingHospitals and primary health careCommunity/ day centreNursing residential homes and hostelsSchools and collegesSports facilitiesOtherAll building types
Carlow3111391921451921702521161025240135175221
Dublin 01-2425911824414699147188961149662267227142
Dublin County25612223313979141170100699230222171138
Kildare291171206229104153163679711041191274172
Kilkenny3012282141281021501491198810973334198186
Laois3782112261101041752345210510330189214203
Longford280261276160122217200751757357148185188
Louth2591382271481781902101591308724170158186
Meath285117236138162224187597410351410159177
Offaly218106226130137196145981189133275205147
Westmeath24217323317011239113996978535134335175
Wexford41112522919612624412118432123935207301215
Wicklow234141218203911451358612013734196187145
Clare283140221153153169169457172144134317208179
Cork City235109225114151197102169149.91213140168
Cork County27412623714812013612611011812737231198159
Kerry2461692341491551542451208910953241186186
Limerick City252240246107181188202126126.6416977191
Limerick County2551882481501761542231061017831180421196
Tipperary2281792201609916519274947854171258163
Waterford City35313624713493138202111493755244204181
Waterford County2571532691511461281081431768143228173165
Galway City22315129314712617921273646429252196166
Galway County279159214134180168202112977649187202183
Leitrim185164205182247159231.12912137.305170
Mayo27418821413113016117356749583147654190
Roscommon35397283140143149149541979692264170188
Sligo41223222914024114921211412312460227107250
Cavan2511462521481591741918114112181196209181
Donegal24815324115115614414577939449198220169
Monaghan26513320221412532212913878763819538171
               
All2721292331511201611769811610247229219163
               

Background Notes

Non-Domestic Building Energy Ratings

Introduction

The European Union Energy Performance of Buildings Directive (EPBD) contains a range of provisions to improve the energy performance of new and existing buildings. The EPBD obliges specific forms of information and advice on energy performance to be provided to building purchasers, tenants and users for consideration in property transactions. A Building Energy Rating (BER) is an indication of the energy performance of a building represented in units of kWh/m2/year. A BER is based on the characteristics of major components of the building. The BER certificate indicates the annual primary energy usage and carbon dioxide emissions associated with the provision of space heating, water heating, ventilation, lighting, and associated pumps and fans. The average annual primary energy use figures and carbon dioxide emissions are not based on actual energy use and emissions data.

These Background notes provide a very general overview together with some specific information on the detailed tables in the release. The SEAI website should be consulted for detailed information on the non-domestic energy assessment procedure (NEAP), see http://www.seai.ie/Your_Building/BER/Non_Domestic_buildings/Non_domestic_Energy_Assessment_Procedure_NEAP_/

Revisions

The figures in this release will be updated on a quarterly basis. Changes to data for the previous quarters will arise mainly from some buildings having another BER audit undertaken and the previous certificate being marked as expired. The difference in the number of BER certificates included in Tables 1 and 2 gives an indication of the number of buildings that have had more than one BER audit undertaken.

Coverage

Full site surveys have to be carried out for New-final and Existing building assessments. New-provisional ratings do not require a site survey as the assessment is done based on design stage plans – new provisional ratings have been excluded from this release. Some buildings are excluded from the EPBD requirements: national monuments; protected structures; places of worship; temporary buildings; industrial and agricultural buildings not intended for occupancy and below a specified installed heating capacity; and buildings with a total useful floor area of less than 50 square metres. Short-term lettings are not exempt.

A BER for new non-domestic buildings was introduced in July 2008 and for renting of existing non-domestic buildings in January 2009. New regulations came into effect in January 2013 requiring the inclusion of BER information in property sale and rental advertisements.

National representativeness

The data have not been adjusted to represent all non-domestic buildings in the State and hence the tables only represents buildings that have been assessed.

Definitions

The BER rating scale is divided into categories from G (largest primary energy usage) to an A1 rating (lowest primary energy usage). Energy consumption is expressed in kWh per square metre of floor area of the building per year (kWh/m2/year) and CO2 emissions are expressed in kilograms of carbon dioxide per square metre per annum. For the purposes of this release A1, A2, and A3 have been combined because of the small number of Certificates in these categories. The certificate is valid for 10 years unless changes are made to the building.


Table Notes

Table 1 presents the number of BERs published by month since January 2009. A premises that has had BERs conducted in different years is included in each year. This table gives an overview of the number of BER assessments being performed each month.

Tables 2-12 only include the latest BER published for each building i.e. the BER is on the public register and is not expired - the number is lower than the total in Table 1 because expired and replaced certificates have been excluded.

Table 2 shows the number of BER certificates by energy rating and year.

Table 3 classifies the number of BER certificates by energy rating and building type. This relates to the current building use and it is displayed on the BER certificate. Some building types have been combined for the purposes of this release e.g. schools and colleges.

Tables 4-5 profile Building Energy Ratings by county and Dublin postal district. Table 4 is in county within province order.

Table 6 profiles Building Energy Ratings by type of main space heating system fuel. The heating system fuel options are: Mains gas; LPG; Biogas; Oil; Electricity; Coal; Biomass; Waste heat; Anthracite; Smokeless fuel; Dual fuel appliances; and Other. Categories with only a small number of responses have been amalgamated in Table 6.

Tables 7-8 cross-classify main space heating system fuel by county and building type.

Table 9 cross-classifies main ventilation system by building type.

Table 10 shows the average floor area by building type and county.

Tables 11-12 show the average primary energy use and average carbon dioxide figures by building type and county.

upArrowHide Background Notes