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For more information on this release:
E-mail: environment@cso.ie Sheona Gilsenan (+353) 1 4984202 Linh Trieu Nolan (+353) 1 4984209
For general information on CSO statistics:
information@cso.ie (+353) 21 453 5000 On-line ISSN 2009-9304
CSO statistical release, , 11am

Non-Domestic Building Energy Ratings

Quarter 2 2016

% of row 
Building Type (2009-2016)Energy Rating Total
ABCDEFG
Retail0144316961215,208
Office0103225137128,993
Restaurant/public house07303618643,681
Hotel0134328843573
Warehouses0183319106145,466
Workshops/maintenance depot01023241410191,441
Industrial process building2362716938898
Hospitals and primary health care3162321141112651
Community/day centre3233217969593
Nursing residential homes and hostels7383017513271
Schools and colleges23282118524557
Sports facilities3293017868344
Other116251913918646
Total11435211161139,322

Retail and Office units account for 62% of Non-Domestic BERs

Non-Domestic Building Energy Ratings Q2 2016 Headline Graph
go to full release

Retail units (39%) and Office units (23%) were the pre-dominant building types that have had a non-domestic building energy rating audit undertaken: 43% of Retail units received a "C" rating while 32% of Office units received a "C" rating (see Table 3).

23% of schools and colleges that have received a non-domestic energy performance assessment were awarded an “A” rating compared with an overall average for all assessed buildings of 1% (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%). At an overall level, 35% of buildings received a “C” rating with a further 21% receiving a “D” rating.

Four counties had a combined “A” and “B” rating of 20% or higher: Offaly (23%); Carlow and Laois (both 21%); and Kildare (20%). In contrast Limerick City at 7% and Leitrim 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 3,437 square metres and Industrial process buildings at 2,790 square metres had the highest average floor area.

ABCDEFG
Retail01443169612
Office010322513712
Restaurant/public house0730361864
Hotel0134328843
Warehouses018331910614
Workshops/maintenance depot0102324141019
Industrial process building2362716938
Hospitals and primary health care3162321141112
Community/day centre3233217969
Nursing residential homes and hostels7383017513
Schools and colleges23282118524
Sports facilities3293017868
Other116251913918
A-BCDEFG
Mains Gas22321910413
Heating Oil1736281244
Electricity11372111812
LPG313818833
Other28251813610
Table 1 Building Energy Ratings Certificates (Non-Domestic) 2009-2016
         number
Period20092010201120122013201420152016Total
January451941501934445906343992,649
February1473261661569466217435523,657
March2072282012248487408076473,902
April1652301621788617966336643,689
May2401892012047888836616463,812
June3481841981637668576865913,793
July408193190243752841594 3,221
August266287173213575785563 2,862
September265221218245693998673 3,313
October236206207289862882682 3,364
November307303223328713964571 3,409
December337193211309574853467 2,944
 
Total2,9712,7542,3002,7458,8229,8107,7143,49940,615
          
Table 2 Building Energy Ratings by Year (Non-Domestic) 2009-2016
              number
YearEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
200928117241385447362278278224106851401282,819
201021551812663453562873052051271221291732,572
20114666120208292237214270164110941281412,090
201237511132033753332843242501721181542172,631
2013481153495851,1231,0958671,0358154953595411,0388,465
2014461213136681,2241,1479041,2059106215136541,3209,646
2015841322655229379247218856975004045171,0377,625
201640531192594074063214093382381992404453,474
               
Total3507101,7013,0965,1504,8603,8764,7113,6032,3691,8942,5034,49939,322
               
Table 3 Building Energy Ratings by Type of Building (Non-Domestic) 2009-2016
             % of row
Building TypeEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
Retail0149181591075461215,208
Office0236911121412757128,993
Restaurant/public house0124811111917117643,681
Hotel015714151417116243573
Warehouses0261012129118546145,466
Workshops/maintenance depot013688814108610191,441
Industrial process building213121112861055438898
Hospitals and primary health care34668781110771112651
Community/day centre33101013117985469593
Nursing residential homes and hostels78131713886104113271
Schools and colleges2389109761082324557
Sports facilities37101214881076368344
Other1466108712758918646
               
Total12481312101296561139,322
               
Table 4 Building Energy Ratings by County (Non-Domestic) 2009-2016
            % of row
CountyEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
Carlow038101714109754311466
Dublin 01-24024713131013106561111,007
Dublin County1248161211129546102,829
Kildare3359131310108545111,619
Kilkenny13871410710955418620
Laois125131312711765314464
Longford11591113911987710302
Louth124611128147768141,071
Meath1269131211118446131,294
Offaly1381111121014643612448
Westmeath026916128111064510903
Wexford114712129109577141,033
Wicklow1341113119118656111,095
Clare02361211101212658121,142
Cork City013711148121275615359
Cork County124814131112964693,444
Kerry1249131391110548121,010
Limerick City.13312138151086913345
Limerick County014813139139666121,443
Tipperary1241017111099657111,014
Waterford City01491515101087598467
Waterford County12791411810855515617
Galway City214511151212968611413
Galway County12471113101110648121,928
Leitrim1.1611131021107479157
Mayo1158131110128656141,045
Roscommon01561111913895812358
Sligo004516109111073818610
Cavan01571311812886614479
Donegal135911131013886510987
Monaghan13491281011686715353
               
Total12481312101296561139,322
               
Table 5 Building Energy Ratings by Dublin Postal District (Non-Domestic) 2009-2016
            % of row
CountyEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
Dublin 10126131110151053914972
Dublin 21134912111413869111,766
Dublin 3 2269171215674713243
Dublin 4024581013151286710497
Dublin 501281414911765517229
Dublin 6013711109712871113343
Dublin 6W1 1181781210961018157
Dublin 70235131111131165614459
Dublin 8113412101113976716669
Dublin 901591414131476466432
Dublin 101258916713810957184
Dublin 11 15611161112129458482
Dublin 120136121111171075710927
Dublin 13 14121511131086938150
Dublin 1402681512911115379343
Dublin 1513616181791163234823
Dublin 16 145131110111564713157
Dublin 1703172512911106537212
Dublin 180659913121496359634
Dublin 20  97413713132991345
Dublin 22017101517111393346439
Dublin 2413310181210111053412844
               
Total024713131013106561111,007
               
Table 6 Building Energy Ratings by Main Space Heating System Fuel (Non-Domestic) 2009-2016
            % of row
Heating System FuelEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
Mains Gas2371013109108544139,868
Heating Oil1358131210161275443,893
Electricity01371313101296581224,495
LPG3412121612111175333733
Other586981079967610333
               
Total12481312101296561139,322
               
Table 7 Main Space Heating System Fuel by County (Non-Domestic) 2009-2016
    % of row
CountyHeating System FuelTotal
Mains GasHeating OilElectricityLPGOther
Carlow2696231466
Dublin 01-24374580011,007
Dublin County35460002,829
Kildare26766111,619
Kilkenny27135720620
Laois24165712464
Longford7216481302
Louth29862101,071
Meath281158211,294
Offaly16196122448
Westmeath19166231903
Wexford91569521,033
Wicklow27962111,095
Clare221856311,142
Cork City27467 1359
Cork County22867213,444
Kerry81470711,010
Limerick City25273  345
Limerick County24965111,443
Tipperary171762211,014
Waterford City3246022467
Waterford County2296522617
Galway City878410413
Galway County101374211,928
Leitrim7275961157
Mayo82067411,045
Roscommon11245853358
Sligo8186761610
Cavan14205491479
Donegal8285662987
Monaghan18195453353
       
Total2510622139,322
       
Table 8 Main Space Heating System Fuel by Type of Building (Non-Domestic) 2009-2016
     % of row
Building TypeHeating System FuelTotal
Mains GasHeating OilElectricityLPGOther
Retail164791115,208
Office32760108,993
Restaurant/public house282442523,681
Hotel452912121573
Warehouses311156205,466
Workshops/maintenance depot231358421,441
Industrial process building30293741898
Hospitals and primary health care27135622651
Community/day centre33263551593
Nursing residential homes and hostels392917113271
Schools and colleges40272453557
Sports facilities40104352344
Other27125442646
       
Total2510622139,322
       
Table 9 Main Ventilation System by Type of Building (Non-Domestic) 2009-2016
   % of row
Building TypeMain Ventilation SystemTotal
Air ConditioningMechanical VentilationNatural Ventilation
Retail4744915,208
Office356598,993
Restaurant/public house3411553,681
Hotel27964573
Warehouses146815,466
Workshops/maintenance depot135821,441
Industrial process building181370898
Hospitals and primary health care19675651
Community/day centre7786593
Nursing residential homes and hostels 793271
Schools and colleges7984557
Sports facilities291556344
Other20675646
     
Total3466039,322
     
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
Carlow4813523952,9439265373,4222401782551,1967931,119644
Dublin 01-243611,0973424,2651,3515962,3697203821,1031,5911,373893873
Dublin County2445133665,3661,2101,5543,9104995771,6892,4561,1641,464650
Kildare2333473764,2231,0055294,2366152452,2331,5031,464539589
Kilkenny2972802793,2771,1266341,6172192241,330838544158508
Laois3632212795,7959106134,7025642621,8152,2611,4891,797648
Longford2412392521,4451,4497707,3814864362,019574707236626
Louth3355943204,8051,2915744,3991872131,5521,5132,390959725
Meath2333593054,2989185161,6906153041,8051,424959237557
Offaly3104472379208695921,6741812911,3114,057280105574
Westmeath3163912432,3891,2155822,7847452781,1662,1911,177436543
Wexford3005252692,8399605842,1933433368301,841794534553
Wicklow1773212812,2608284682,8836642901,1261,916628209475
Clare2325073042,4159064732,4732352143831,236303517609
Cork City3746082052,9181,38143041115197 735948564538
Cork County2706152694,3151,0154763,1284563421,4141,440699715586
Kerry2642882693,2076703072,9764432787221,302467323489
Limerick City2724082857,6301,0813682,388164483 854 2,375544
Limerick County2754662814,5451,2664453,5419772961,6982,544923525687
Tipperary3313722472,7221,7814183,5711633661,3901,559629176681
Waterford City2954733562,5868497171,9041597359704802381,067521
Waterford County3172802632,7061,3847423,9481871548351,776810346668
Galway City2983632272,2356193803,5793997661,4902,957503843573
Galway County2654132752,9551,1644611,7452152312,0921,379725409562
Leitrim2611,0512721,315605585878 2702561,169 44530
Mayo2702422884,0351,0167351,9703012441,375590668644500
Roscommon2455592511,5559516352,6181,1766611,139437634393471
Sligo3433372791,5069893773,3257712712,1371,5101,018934565
Cavan2473932363,1586323541,7094033741,764866707459439
Donegal2643043132,2621,1944112,879569414904834583336563
Monaghan3241563803,6039629064,9931426631,4841,8521,0111,450596
               
All2977043013,4371,1655972,7904973391,3261,548980695666
               
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
Carlow1,3105818246378228001,076495511248179589760940
Dublin 01-241,1035211,0586624356498194275014772971,2261,000622
Dublin County1,0995361,0146213526487974573114821391,013741610
Kildare1,2357478831,0044386737053134054781868961,166739
Kilkenny1,2739889016024456296324913974583101,425705801
Laois1,559906955501449750996230453443137987948860
Longford1,1601,0741,105707481904847323734314234627810780
Louth1,110596976646734822917689599393111751669796
Meath1,2735039956296859597972623394702101,818713761
Offaly9154489485715858266074154963941421,153872617
Westmeath1,0937341,0157504641,6835914164423431475821,410760
Wexford1,7745359678415291,2575107851,3541,0031341,1721,266922
Wicklow1,000615915882391610533256523653149892812606
Clare1,2066039286626607367301,9436547325661,367879770
Cork City992486985525625886458760624 453965627727
Cork County1,1265411,0186665175745414784996221631,019849675
Kerry1,0617169786816546471,0005294074742201,012785796
Limerick City9981,0571,079502793790924798573 281 337822
Limerick County1,0838071,0627137636629704774673541351,0011,357843
Tipperary9687659397154917027946244013282317331,074711
Waterford City1,4996081,0686133535898684892421552531,129928774
Waterford County1,1016601,1607035265444666147813851921,035762680
Galway City9236331,2426205216988912782862681351,191828700
Galway County1,197673901605764717870477404346214840855786
Leitrim7729138567621,029729971 543881166 1,356794
Mayo1,1788219176484816547414072924423486222,782827
Roscommon1,4774111,1745826186219122848094214101,157735829
Sligo1,7509869725981,0516178884705305342501,3004541,063
Cavan1,0796141,068643687763809353598498337820928769
Donegal1,0416451,010641678605638337399604210852936728
Monaghan1,1745408569116121,385562575342324212929224773
               
All1,1605629986805177027614395084752091,052934703
               
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
Carlow3101371901451951802521161175239134179221
Dublin 01-242601182431461001481889711310265265234143
Dublin County259122233139811411851006710330218171140
Kildare291174204229102153164719211041192273171
Kilkenny3022312131281051471491138810975334168187
Laois3702122261101051752345210510330189214201
Longford276256264160114205200751757357148185184
Louth2621372271461711912121611368524170158185
Meath300116233138162224187597610250410159177
Offaly218105226130136196145981189133275205145
Westmeath25817323917011039713996987232134335179
Wexford42212323019612530012118532124331207301217
Wicklow236142214203901441245712015332197186141
Clare285141218153153168169457155172134317208180
Cork City235111227114141197102177149 100213140167
Cork County26612623814712013312611011712837228198157
Kerry2521712321531551532391249511053241187187
Limerick City237247251107185188204190126 64 77190
Limerick County2561882491501781562291061117531235315196
Tipperary229181222160116158188150947453171258167
Waterford City35514124513483135202111493755244214181
Waterford County2591532741511221261081431768143224173157
Galway City22015129314712416521266646429252196166
Galway County284159213137181169203111957649186202185
Leitrim184217204182247159231 12921437 305189
Mayo28019521815211415617596709483147659196
Roscommon35295279136146149220541979792264170196
Sligo41623323114024814921211412912460227107252
Cavan2561462531481611741918114112181196203181
Donegal24715324015316014414577969449198220170
Monaghan27612820321413632713113878763819538178
               
All27412923315312016117810011810447230218163
               

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.

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