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For more information on this release:
E-mail: environment@cso.ie Anne-Marie Griffin (+353) 1 4984216 Berna Lawlor (+353) 1 4984210
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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, 21 April 2017, 11am

Non-Domestic Building Energy Ratings

Quarter 1 2017

% of row 
Building Type (2009-2017)Energy Rating Total
ABCDEFG
Retail0144217961217,070
Office1932251381310,044
Restaurant/public house07293618644,117
Hotel0154227943639
Warehouses018331996146,122
Workshops/maintenance depot0923241310201,674
Industrial process building2362616939997
Hospitals and primary health care4162321151011716
Community/day centre3243217969682
Nursing residential homes and hostels7392917413318
Schools and colleges23272217623633
Sports facilities2302917868382
Other215241812820738
Total11435211161244,132

50% of school and college buildings rated “A” or “B”

NDBER2017Q1 Headline Graph

At the end of the first quarter of 2017, Building Energy Rating (BER) audits had been conducted on a total of 44,132 non-domestic buildings since January 2009 (Table 2). Overall, 1% of buildings were awarded an "A" rating, followed by 14% receiving a "B" rating and 35% with a “C” rating. A further 12% received a “G” rating (see Table 3).

Schools and colleges are the most energy efficient buildings with 23% awarded an “A” rating and 27% receiving a “B” rating (see Table 3). Nursing residential homes and hostels were the second most energy efficient with 46% of buildings rated “A” or “B”.  In contrast, a high proportion of “G” ratings were awarded to: Workshops and maintenance depots (20%); Warehouses (14%); Office buildings (13%); Retail units (12%); and Hospitals and primary health care buildings (11%).

Four counties had a combined “A” and “B” rating of 20% or higher: Offaly (21%); with Carlow, Kildare and Laois at (20%). In contrast, Leitrim at 9%, and Limerick City at 8%, had the lowest proportion of combined “A” and “B” ratings. Kilkenny and Sligo at 18% each had the highest proportion of “G” rated buildings (see Table 4).

Dublin 15 at 25% had the highest proportion of combined “A” and “B” ratings, while Dublin 5 and Dublin 6W had the highest proportion of “G” rated buildings at 17% (see Table 5).

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).

Table 10 shows the average floor area classified by Building type and County. Hotels at 3,319 square metres and Industrial process buildings at 2,797 square metres had the highest average floor area. Retail units had both the highest average primary energy use (1,162 kWh/m2/year) as well as average carbon dioxide emissions (275 kgCO2/m2/year), while school and college buildings had the lowest figures for these two attributes (see Tables 11 and 12).

ABCDEFG
Retail01442179612
Office19322513813
Restaurant/public house0729361864
Hotel0154227943
Warehouses01833199614
Workshops/maintenance depot092324131020
Industrial process building2362616939
Hospitals and primary health care4162321151011
Community/day centre3243217969
Nursing residential homes and hostels7392917413
Schools and colleges23272217623
Sports facilities2302917868
Other215241812820
ABCDEFG
Retail01442179612
Office19322513813
Restaurant/public house0729361864
Hotel0154227943
Warehouses01833199614
Workshops/maintenance depot092324131020
Industrial process building2362616939
Hospitals and primary health care4162321151011
Community/day centre3243217969
Nursing residential homes and hostels7392917413
Schools and colleges23272217623
Sports facilities2302917868
Other215241812820
A-BCDEFG
Mains Gas22321910414
Heating Oil1735281244
Electricity11362111812
LPG313817833
Other27231914711
Table 1 Building Energy Ratings Certificates (Non-Domestic) 2009-2017
          number
Period200920102011201220132014201520162017Total
January451941501934445906343993392,988
February1473261661569466217435535354,193
March2072282012248487408076476874,589
April165230162178861796633665 3,690
May240189201204788883661647 3,813
June348184198163766857686597 3,799
July408193190243752841595561 3,783
August266287173213575785563587 3,449
September265221218245693998673683 3,996
October236206207289862882682640 4,004
November307303223328713964572530 3,940
December337193211309574853467436 3,380
 
Total2,9712,7542,3002,7458,8229,8107,7166,9451,56145,624
Table 2 Building Energy Ratings by Year (Non-Domestic) 2009-2017
              number
YearEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
200928117241385447362278278224106851401282,819
201021551812663453562873052051271221291732,572
20114666120208292237214270164110941281412,090
201237511132033753332843242501721181542172,631
2013481153495851,1231,0958681,0358154953595411,0388,466
2014431143046641,2171,1458991,2029066135126511,2819,551
2015841312635229339217208836964994035181,0327,605
2016901072434807718006388416254823764829146,849
20171228661041881741462161339382962111,549
               
Total4097841,8803,4175,6915,4234,3345,3544,0182,6972,1512,8395,13544,132
Table 3 Building Energy Ratings by Type of Building (Non-Domestic) 2009-2017
% of row 
Building TypeEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
Retail0149181591075461217,070
Office12359111214117681310,044
Restaurant/public house0124811111917117644,117
Hotel016813151416116343639
Warehouses0261013129118546146,122
Workshops/maintenance depot013678814108510201,674
Industrial process building213121012861155439997
Hospitals and primary health care44668881210771011716
Community/day centre33111014117985469682
Nursing residential homes and hostels78131813987103113318
Schools and colleges2389119761073323633
Sports facilities27111213881076268382
Other2466108612757820738
               
Total12481312101296561244,132
Table 4 Building Energy Ratings by County (Non-Domestic) 2009-2017
% of row 
CountyEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
Carlow027101713109654313548
Dublin 01-24124712121113106561112,167
Dublin County1248151210129556103,148
Kildare3259131310108555121,821
Kilkenny13871410810955418678
Laois224121312811776414514
Longford11591112911986810331
Louth124611128147758141,188
Meath1269131211118555131,471
Offaly1371011121114644512504
Westmeath12681713811106559999
Wexford114712139119678141,196
Wicklow1341113118128656111,290
Clare0237121191312668111,261
Cork City013611148121374615412
Cork County1248141311129646103,946
Kerry0241013139119557121,128
Limerick City013412137141075913401
Limerick County014813139139667121,625
Tipperary1249171110109657111,157
Waterford City01381615111078598524
Waterford County12791312811855515673
Galway City1146111412121067511476
Galway County12481112101110648122,173
Leitrim11712131021108477184
Mayo1158131110128657131,146
Roscommon01471010912995915433
Sligo11451510911973718668
Cavan11471312812886713555
Donegal136810129138765111,118
Monaghan1349118912666717397
               
Total12481312101296561244,132
– No data
Table 5 Building Energy Ratings by Dublin Postal District (Non-Domestic) 2009-2017
% of row 
CountyEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
Dublin 10125131191510639161,080
Dublin 21134912111412869111,918
Dublin 32268161216685912303
Dublin 4135581013151176710532
Dublin 502291313911775517243
Dublin 60146111010912871112363
Dublin 6W1237147149961117180
Dublin 71225121312131165514541
Dublin 811341291113976616747
Dublin 911581313131587467474
Dublin 101258815811910868201
Dublin 1125711151212119458541
Dublin 1201361211111710757111,008
Dublin 1313111412121196948159
Dublin 14026815129121153710382
Dublin 1513615191791173235909
Dublin 1614513129111564714167
Dublin 1703272312101296537241
Dublin 18065910131214106348671
Dublin 2028661210121221081451
Dublin 2211791517111384346499
Dublin 24123917129121053412957
               
Total124712121113106561112,167
– No data
Table 6 Building Energy Ratings by Main Space Heating System Fuel (Non-Domestic) 2009-2017
% of row 
Heating System FuelEnergy Rating Total
AB1B2B3C1C2C3D1D2E1E2FG
Mains Gas23710131191086441411,252
Heating Oil1258121211161275444,384
Electricity01371313101296581227,290
LPG3412131513101075333813
Other4751089610977711393
               
Total12481312101296561244,132
Table 7 Main Space Heating System Fuel by County (Non-Domestic) 2009-2017
% of row 
CountyHeating System FuelTotal
Mains GasHeating OilElectricityLPGOther
Carlow2696221548
Dublin 01-24374580012,167
Dublin County35559003,148
Kildare26765111,821
Kilkenny28145621678
Laois24165712514
Longford8216371331
Louth28962101,188
Meath291158101,471
Offaly18196022504
Westmeath18166131999
Wexford91569521,196
Wicklow27961111,290
Clare211857311,261
Cork City303651412
Cork County24866213,946
Kerry81469621,128
Limerick City24274401
Limerick County25964111,625
Tipperary181761211,157
Waterford City3146122524
Waterford County22106432673
Galway City878310476
Galway County101374312,173
Leitrim5276152184
Mayo82066411,146
Roscommon12235943433
Sligo8186761668
Cavan13205791555
Donegal102755621,118
Monaghan16205654397
       
Total2510622144,132
– No data
Table 8 Main Space Heating System Fuel by Type of Building (Non-Domestic) 2009-2017
% of row 
Building TypeHeating System FuelTotal
Mains GasHeating OilElectricityLPGOther
Retail164791117,070
Office327601110,044
Restaurant/public house282441524,117
Hotel453012121639
Warehouses311155206,122
Workshops/maintenance depot251357421,674
Industrial process building30273732997
Hospitals and primary health care29135522716
Community/day centre34263451682
Nursing residential homes and hostels393016133318
Schools and colleges40272463633
Sports facilities4194352382
Other29125442738
       
Total2510622144,132
Table 9 Main Ventilation System by Type of Building (Non-Domestic) 2009-2017
% of row 
Building TypeMain Ventilation SystemTotal
Air ConditioningMechanical VentilationNatural Ventilation
Retail4744917,070
Office3565910,044
Restaurant/public house3311564,117
Hotel26865639
Warehouses146806,122
Workshops/maintenance depot145811,674
Industrial process building181270997
Hospitals and primary health care20674716
Community/day centre7786682
Nursing residential homes and hostels793318
Schools and colleges6885633
Sports facilities301555382
Other19575738
     
Total3466044,132
– No data
Table 10 Average Floor Area by Type of Building and County (Non-Domestic) 2009-2017
              m2
CountyRetailOfficeRestaurant/ public houseHotelWarehousesWorkshops/ maintenance depotIndustrial process buildingHospitals and primary health careCommunity/ day centreNursing residential homes and hostelsSchools and collegesSports facilitiesOtherAll building types
Carlow4813443792,5888635353,236239216255988674936615
Dublin 01-243651,0963413,9311,3385712,4906573881,1971,6121,452963873
Dublin County2484923585,2141,2911,2704,7744584921,8622,4621,0421,434652
Kildare2323523634,2239985526,1176562462,3121,5031,398507606
Kilkenny2812782852,8081,1977641,6172052351,269710544134507
Laois3392122775,7959355914,7246962621,8152,2611,4891,797629
Longford2352292531,1421,3637266,2074864362,019574707236604
Louth3415613204,7421,3046164,3532092071,3781,5132,212977718
Meath2394043004,2988975101,6705792941,6681,563959269549
Offaly3104402329207995921,6741742951,5854,057258105551
Westmeath3155662382,2211,5325593,0251,1042621,1062,0101,177407617
Wexford2934712692,7308717302,1933313367881,623794534529
Wicklow2133292742,4897824352,0935412901,2981,768606217478
Clare2225023002,3059244542,3992352585701,129285526592
Cork City3646942032,9181,335430411172132709948564558
Cork County2766112724,0251,0034743,0474643521,3201,372805647579
Kerry2722802702,8556883133,1864052656551,159467336487
Limerick City2583982797,6309833681,4543544671,5218546772,375525
Limerick County2964582874,7631,2164483,3051,0343531,7482,1951,141528685
Tipperary3093582482,5091,7694153,4614283591,2551,156609161639
Waterford City2844643553,4468337581,904141735970480248929520
Waterford County3412682733,4321,3376743,9481871548351,569754346668
Galway City2793562272,4966383363,4803597661,4902,677503626549
Galway County2693912672,8921,1295371,7942182351,9621,258985387554
Leitrim2749362761,3156055858782708691,16944517
Mayo2712452853,7149887241,9697502581,484590624564494
Roscommon2534592531,9548195875,3971,1766611,161437634393486
Sligo3383592791,5069643553,1817712612,1371,510938857554
Cavan2393682462,8066464031,7094033681,764785653398420
Donegal2543503062,2811,2334582,805569387904828541318556
Monaghan3031573644,8119907491,6341426631,4841,8521,0111,450603
               
All2986992993,3191,1575842,7975103371,3461,496996695661
– No data
Table 11 Average Primary Energy Use by Type of Building and County (Non-Domestic) 2009-2017
              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
Carlow1,5285828306267907611,0624734522481856237421,003
Dublin 01-241,1025161,0486514316627944284934372891,176949617
Dublin County1,0945431,0166263466497664593614201371,032740605
Kildare1,2407398841,0044467476622904254741868911,185734
Kilkenny1,2599699046034456736325103724833061,425837785
Laois1,531906957501443742945242453443137987948841
Longford1,1731,0781,138696512995841323734314234627810799
Louth1,046596972662749761905630578412111764582786
Meath1,2084629986296909217822693504751861,818687741
Offaly9644609395716078266074194764231421,167872638
Westmeath1,0257299927495481,6346043084384121575821,448734
Wexford1,7235489698215411,0295107841,3549851571,1721,266911
Wicklow986611983788400664577381523591157885816632
Clare1,1815999326636327427321,9436146355631,358853762
Cork City9815231,007525618886458667494414965627710
Cork County1,1695361,0056685145885354714736061771,111860687
Kerry1,0367029766566326559965123914702311,012791782
Limerick City1,0881,0211,056502730790835533487944281766337818
Limerick County1,1367951,0496747386679454764053701977701,805843
Tipperary9737519337144189058823164093452388471,060718
Waterford City1,4505871,0628263936158684892421552531,459881781
Waterford County1,0626601,1877226195494666147813851921,051762713
Galway City9346331,2425675457588843072862681371,191802694
Galway County1,188678905600754718837471408339198743850776
Leitrim7566828687621,0297299715434961661,356715
Mayo1,1438089115695626647322423363803486262,725803
Roscommon2,0874541,1536076146426172848094214101,157735971
Sligo1,6751,0549625981,0196258954704895342501,1444651,057
Cavan1,0006241,060646672631809353432498335833950751
Donegal1,096673995641613680634337387604213832950732
Monaghan1,1145668627965741,393763575342324212929224767
               
All1,1625589966705147107544214894612121,035930701
– No data
Table 12 Average Carbon Dioxide Emissions by Type of Building and County (Non-Domestic) 2009-2017
              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
Carlow3631371921421871732491101025241140175236
Dublin 01-2426011724014399151183971119363254222141
Dublin County25812423314079142170100799030222171138
Kildare292172205229104172154669710741191277170
Kilkenny2982272131281051581491198311473334199184
Laois3632122271101041732235310510330189214196
Longford279257271159122227199751757357148185189
Louth2471382271511751782101461308924173136183
Meath285107234138163215183617810343410153172
Offaly2291082241301401961451001149733278205150
Westmeath24217223417012738514371988535134344172
Wexford41012723019212824512118432123937207301214
Wicklow232141231179921571358612013734196187147
Clare279140219153147169169457145144133315202178
Cork City23211923211414019710215310991213140163
Cork County27612523514811913612510811112740236201159
Kerry2451662321491501562381208810855241189184
Limerick City2582392451071711881851261082256418277190
Limerick County269185245142172156222106948046180421196
Tipperary2301772211609920620974967955194255169
Waterford City34313624418892141202110493755336204182
Waterford County2491532801501441281081431768143228173165
Galway City22215029313213017921173646430252190164
Galway County282161214136179169195110967545166201183
Leitrim18016320618224715923112912137305170
Mayo27219121713313315917356808283147645190
Roscommon497105274140145154149541979692264170229
Sligo39925022914024115121311411812460213109250
Cavan2371482511491581441918110212180197209177
Donegal26016023715214515814477939449193223172
Monaghan26213420418512832917113878763819538176
               
All2751282321511191631769611310147225217163
– No data

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 (kgCO2/m2/year). 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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