The Register of Planning Applications · Éire

Sunday 30 August 2026

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SD26A/0187W

Referral

Dublin - South Dublin County Council

Proposed Development

Provision of a boiler house, boiler, heat exchangers and ancillary equipment; The application relates to a development which comprises or is for the purposes of an activity requiring an Industrial Emissions Licence; The use of the site is an establishment to which the European Communities (Major Accident Hazards Involving Dangerous Substances) Regulations 2006 as amended by the Chemicals Act (Control of Major Accident Hazards Involving Dangerous Substances) Regulations 2015 apply.

View the full application file on the council's planning portal →

Application Timeline

  1. Application received

    30 Jul 2026

  2. Decision due (upcoming)

    23 Sept 2026

Application Details

Location
Grange Castle Business Park, Nangor Road, Clondalkin, Co. Dublin
Applicant
N/A
Application Type
Permission
Planning Authority
South Dublin County Council
Site Area
640 ha
Floor Area
22.4 sq m

Timeline

Registration Date
30 July 2026
Status
Referral
Decision
Pending
Decision Due
23 September 2026

Location

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Planning Applications Nearby

What the council has granted and refused around this site is the best guide to how a similar application will fare.

142m
SD16A/0087Granted16 Mar 2016

Site enabling works including demolition of existing vacant house and outbuildings (total floor area c.241sq.m), diversion of Baldonnell stream, provision of below ground attenuation and associated landscape works on a site of c.9.4ha located north of the Nangor Road and west of kilcarberry Business Park.

Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22

160m
S02A/0097Refused26 Mar 2002

Change of use from Residential To Irish Cultural and Language Institute and for a new Bio - Cycle unit

Sliabh Gcua, Ballybane, Dublin 22

166m
SD17A/0318Granted6 Sept 2017

The provision of a temporary (for 3 years) 18MW gas powered electricity generator compound to provide electricity to the DUB08 data centre located within the Microsoft Data Centre Campus, in advance of the upgrade of electricity infrastructure locally. The development will include 16 generators, gas skid compound and site compound (providing control cabinets, drying room, toilets and staff canteen – total floor area of buildings c.125sq.m). Temporary access arrangements via existing construction access from business park road. Provision of 10m high acoustic screen, palisade fencing and gates, staff parking, additional landscape screening. All associated site development, service provision, landscaping and other works. The temporary generator compound will be located within campus lands subject to an extant planning permission – Reg. Ref: SD16A/0088 (4 No. data centres; DUB09, DUB10, DUB12, DUB13) and the current application represents a modification to this permission. The compound will be located across part of the footprint of permitted data centre DUB12. It is intended that DUB12 and DUB13 will be constructed and permission Reg. Ref: SD16/0088 completed following decommissioning of the temporary generator compound. An Environmental Impact Assessment Report (EIAR) has been submitted with this application.

Grangecastle Business Park, Nangor Road, Clondalkin, Dublin 22

176m
ED26/0001Declared Exempt13 Jan 2026

The proposed works consist of the erection of 6 No. platforms at the DUB07, DUB 09, DUB13, and DUB14 data centres at Grange Castle Business Park for the purpose of monitoring flue emissions.

DUB07 DUB09 DUB13 and DUB14, Data Centres, Grange Castle Business Park

215m
SD24A/0019Granted29 Jan 2024

Amendments to a previously permitted development (Ref. SD21A/0203 which amended Ref. SD20A/0283); Amendments relate to the permitted Gas Skid Compound to provide layout details which will include the provision of a boiler house kiosk, Electrical & Instrumentation kiosk, regulators/meters kiosk, gas analyser kiosk and all associated infrastructure and site development works; The application relates to a development which comprises or is for the purpose of an activity requiring an Industrial Emissions Licence; The use of the site is an establishment to which the European Communities (Major Accident Hazards Involving Dangerous Substances) Regulations 2006 as amended by the Chemicals Act (Control of Major Accident Hazards Involving Dangerous Substances) Regulations 2015 apply.

Microsoft, Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22.

218m
SD25A/0017WGranted31 Jan 2025

Microsoft Ireland Operations Ltd. intend to apply for permission for development at the Microsoft Campus, Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22. The development will consist of the temporary provision of 9 No. generators (fuelled with Hydrotreated Vegetable Oil (HVO)) and associated site development works for a period to run concurrently with the lifespan of the permitted development under South Dublin County Council (SDCC) Reg. Ref. SD20A/0283 and SD21A/0203. The maximum height of the flue stacks associated with the generators is c. 30.95m. The temporary works will be removed when the permission expires. The application relates to a development which comprises or is for the purposes of an activity requiring an Industrial Emissions Licence. The use of the site is an establishment to which the European Communities (Major Accident Hazards Involving Dangerous Substances) Regulations 2006 as amended by the Chemicals Act (Control of Major Accident Hazards Involving Dangerous Substances) Regulations 2015 apply.

Microsoft Campus, Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22, D22 F1W8

219m
ED24/0060Declared Not Exempt30 Oct 2024

Implementation and use of 13 no. temporary replacement generators at the Dub15 Data Centre building within the Microsoft Campus to operate the data hall until the recently permitted Gas Network Ireland (GNI) Skid (SDCC Reg Ref. SD24A/0019) is constructed and operational.

Microsoft DUB Campus, Grange Castle Business Park, Dublin 22

219m
SD25A/0004WInvalidate Application

The development will consist of the temporary provision of 9 No. generators (fuelled with Hydrotreated Vegetable Oil (HVO)) and associated site development works for a period to run concurrently with the lifespan of the permitted development under South Dublin County Council (SDCC) Reg. Ref. SD20A/0283 and SD21A/0203. The maximum height of the flue stacks associated with the generators is c. 30.95m. The temporary works will be removed when the permission expires. The application relates to a development which comprises or is for the purposes of an activity requiring an Industrial Emissions Licence. The use of the site is an establishment to which the European Communities (Major Accident Hazards Involving Dangerous Substances) Regulations 2006 as amended by the Chemicals Act (Control of Major Accident Hazards Involving Dangerous Substances) Regulations 2015 apply.

Microsoft Campus, Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22, D22 F1W8

239m
SD21A/0203Granted13 Oct 2021

Modifications and minor additions to previously approved scheme (Planning Register Reference SD20A/0283) at this site of c.16.23ha (in total) comprising of the following changes to previously approved scheme SD20A/0283; Approved Central Administration Building (CAB), relocation of building to the east by approx. 7m; reconfiguration and setting out of building plans at all levels (including roof level) resulting in increase in building footprint of approximately 170sq.m (from 1,424sq.m to 1,594sq.m) associated changes to building elevations (design and finishes); approved single storey Cafeteria Element, additional basement level below cafeteria to accommodate plant; 9 rooflights (2.8 m diameter) and 9 rooflight (1.8m diameter), inclusion of MEP Plant on roof level including new flue extending approx. 1m above parapet; approved four-storey Office element, parapet at roof level to be raised by approx. 1.1m (increased from approved 19.5m in height to proposed 20.6m); overall increase in GIFA of 395sq.m; reconfiguration of area available for PV panels and sedum roof finish in order to accommodate required MEP equipment at roof levels. approved Data Centres - DUB14 and DUB15, reconfiguration and setting out affecting building locations and plans at all levels (including roof level) resulting in reduction in overall building footprint (for each building) by 48sq.m (from 13,442sq.m to 13,394sq.m), associated changes to staircases design, building elevations design and finishes, increase in parapet height of Vent Houses (at roof level) by approx. 350mm and omission of previously proposed zone of sedum roof finish; overall decrease in GIFA of 1,352sq.m in respect of DUB 14 and decrease of 1,453sq.m in respect of DUB 15; all plant equipment at ground level - reduced in height compared to approved layout so that the screening is deemed not required; DUB 14, reduction in height of approved flues by approx. 650mm, reduction in number of flues from 11 approved to 8 proposed; DUB 15, change to level of ground floor and associated increase in overall building height of approx. 700mm (parapet height increased from approved +83.0m O.D. to proposed +83.7m O.D.); reconfiguration of associated external plant at ground level (including generators / E-Houses & transformers) flues, omission of approved Modular Electrical Rooms (MERs) and associated screening serving approved Data Centres DUB14 &15; relocation, modifications to design and expansion of approved Water Treatment Building and associated plant to include, Water Treatment Tanks, 2 sprinkler tanks and relocated approved pump house (contained in the main Water Treatment Plant building) and 1 generator with additional proposed flue stack (height 30.75m) and 1 transformer; Gas Generator Compound - Relocation & reconfiguration of previously approved gas generator compound including, additional 4 generators (from 20 approved to 24 proposed), omission of approved E-houses; additional 7 electrical rooms, additional 7 flues (from 5 approved to 12 proposed); modifications to approved layout of internal site roads, yards and footpaths; relocation and modifications to design of approved Sprinkler Tanks and Pump Houses, Pump House serving DUB 14, relocated into proposed Water Treatment Building and compound, redesign of approved larger tank into proposed two smaller tanks; Pump House serving DUB 15, relocated to south of DUB15 the north facilitate space for electrical equipment redesign of approved larger tank into proposed two smaller tanks; relocation of Approved Gas Networks Ireland (GNI) gas skid & compound including approved 3 kiosk buildings; modifications to approved car park layouts and landscaping design; modifications to location and design of approved bicycle shelters; modifications to site development works, including underground water and building services provision, landscaping, internal security and compound enclosure fencing, and associated works; the remainder of the development (including permitted temporary construction car parking) to be carried out in accordance with parent permission SD20A/0283. An Environmental Impact Assessment Report (EIAR) has been submitted with this application; The application relates to a development which comprises an activity requiring an integrated pollution prevention and control (IE) licence relating to lands located west of the existing MS Data Centre Campus and also a site located north of the main entrance to the business park from Grange Castle Road.

Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22

250m
SD20A/0121Granted16 Jul 2020

Permission for a period of ten years for development at this site of 16.5 hectares that is located within lands in the Grange Castle South Business Park and includes the residential property of Ballybane, Old Nangor Road on land within the townlands of Milltown; Ballybane and; Aungierstown and Ballybane; and bounding Baldonnel Road to the west; both the Old and New Nangor Road to the north; and Grange Castle South Access Road to the South, Baldonnel, Dublin 22. The development will consist of the following: (1) The demolition of the existing two storey dwelling of Ballybane and associated farm buildings (565sq.m) and the construction of 3 two storey data centres with mezzanine floors at each level of each facility and associated ancillary development that will have a gross floor area of 80,269sq.m on an overall site of 16.5hectares. (2) 1 two storey data centre (Building A) that will be located to the south-west of the site and will have a gross floor area of 28,573sq.m. and will include 26 emergency generators located at ground floor level within a compound to the northern side of the data centre with associated flues that will be 25m in height. The facility will also include 26 ventilation shafts which will be located above the northern end of each emergency generator that will measure 20m in height. (3) 1 two storey data centre (Building B) which will be located to the north-west of the site, and to the immediate north of Building A and will have a gross floor area of 21,725sq.m and which will include 18 emergency generators located at ground floor level within a compound to the northern side of the data centre with associated flues that will be 25m in height. The facility will also include 18 ventilation shafts which will be located above the southern end of each emergency generator that will measure 20m in height. (4) 1 two storey data centre (Building C) which will be constructed last, will be located to the eastern part of the site on a north-south axis and will have a gross floor area of 28,573sq.m. It will include 26 emergency generators located at ground floor level within a compound to the western side of the data centre with associated flues that will be 25m in height. The facility will also include 26 ventilation shafts that will be located above the western end of each emergency generator that will measure 20m in height. (5) Each of the three data centres will include data storage rooms, associated electrical and mechanical plant rooms, loading bays, maintenance and storage spaces, office administration areas, and plant including PV panels at roof level as well as a separate house generator for each facility which will provide emergency power to the admin and ancillary spaces. Each data centre will also include a diesel tank and a refuelling area to serve the proposed emergency generators. (6) The overall height of each data centre apart from the flues and plant at roof level is c. 19.85m above the finished floor level. (7) 1 temporary and single storey substation (29sq.m). (8) 3 single storey MV buildings (each 249sq.m - 747sq.m in total) which manage the supply of electricity from the substations to each data centre and are located to the immediate west of the generator compound within buildings A and B, and to the south of the generator compound withing building C. (9) 8 prefabricated containerised electrical rooms (65sq.m each and 520sq.m overall) that are stacked in pairs to the immediate south of the temporary substation. (10) Ancillary site development works, which will include attenuation ponds and the installation and connection to the underground foul and storm water drainage network and installation of utility ducts and cables which will include the drilling and laying of ducts and cables under Baldonnel stream. Other ancillary site development works will include hard and soft landscaping, lighting, fencing, signage, service road, entrance gate, sprinkler tank house (72sq.m), security hut (30sq.m) and 150 car parking spaces and 78 sheltered bicycle parking spaces. The development will be enclosed with landscaping to all frontages including a wetland to the west. The development will be accessed from the Grange Castle South Access Road from the south via the Baldonnel Road. An Environmental Impact Assessment Report (EIAR) has been submitted with this application.

Townlands within Grange Castle South Business Park, Baldonnel, Dublin 22

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