ED26/0001
Declared ExemptDublin - South Dublin County Council
Proposed Development
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.
View the full application file on the council's planning portal →Application Timeline
Application received
13 Jan 2026
Decision due
9 Feb 2026
Decision: Declared Exempt
9 Feb 2026
Application Details
- Location
- DUB07 DUB09 DUB13 and DUB14, Data Centres, Grange Castle Business Park
- Applicant
- N/A
- Application Type
- Declaration of Exemption Sect. 5
- Planning Authority
- South Dublin County Council
- Site Area
- 6841.24289714163 ha
Timeline
- Registration Date
- 13 January 2026
- Status
- Decision
- Decision
- Declared Exempt
- Decision Date
- 9 February 2026
Location
Planning Applications Nearby
What the council has granted and refused around this site is the best guide to how a similar application will fare.
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
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
Provision of an establishment to which to European Communities (Major Accident Hazards involving Dangerous Substances) Regulations 2006 as amended by Chemicals Act (Control of Major Accident Hazards involving Dangerous Substances) Regulations 2015 apply, constituting a change of use; The new establishment will include all the existing and permitted buildings (SD13A/0143 as amended by SD13A/0265, SD14A/0194 as amended by SD15A/0343, SD16A/0088 as amended by AD17A/0318 & SD20A/0283, SD21A/0203 & SD21A/0288, all within an existing campus; The proposal relates to the total quantum of fuel oil to be stored within existing and permitted tanks across the existing and permitted buildings; For the avoidance of doubt no works or physical development is proposed and the application relates to an existing development which comprises or is for the purpose of an activity requiring an integrated pollution prevention and control (IE) licence.
Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22
Provision of an establishment to which the European Communities (Major Accident Hazards involving Dangerous Substances) Regulations 2006 as amended by Chemicals Act (Control of Major Accident Hazards Involving Dangerous Substances) Regulations 2015 apply. The new establishment will include all the existing permitted buildings (SD13A/0143 as amended by SD13A/0265; SD14A/0194 as amended by SD15A/0343; SD16A/0088 as amended by SD17A/0318 and SD20A/0283; SD21A/0203; SD21A/0288), all within existing campus. The proposal relates to the total quantum of fuel oil to be stored within existing and permitted tanks across existing and permitted buildings. For the avoidance of doubt no works or physical development id proposed. The application relates to an existing development which comprises or is for the purposes of an activity requiring an integrated pollution prevention and control (IE) licence
Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22
Erect 329sq.m or 67.34 KWp of photovoltaic panels on the roof of the building DUB12 in data centre; all associated site works.
Unit 75 (DUB12), Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22
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.
Grange Castle Business Park, Nangor Road, Clondalkin, Co. Dublin
Site enabling works including demolition of existing vacant house and outbuildings (total floor area c.241sq.m), diversion of Baldonnel stream, provision of below ground attenuation. Development of 4 single storey data centres (DUB09, DUB10, DUB12, DUB13) located west of data centres DUB06 (existing), DUB07 & DUB08 (both granted under SD15A/0343), each data centre will contain the following: offices, computer and associated support areas, electrical component rooms, plant and associated equipment, plant at roof level and 5 flues each (each c.25m high) (gross floor area of each data centre c.17,598sq.m c.70,392sq.m in total). The height of each data centre will range between c.6.1m & c.13.3m high. Ancillary site works for connection to infrastructural services, as well as fencing, landscaping, perimeter service roads around the buildings. The provision for installation of heat dispersal infrastructure to facilitate the future potential recycling of waste heat energy by 3rd parties. 160 additional operational parking spaces (including universal accessible spaces). Provision of 20 bicycle parking spaces. Provision of 1 adiabatic water storage tank (c.273sq.m), 1 water treatment storage tank (416sq.m) and 2 pump houses (c.75sq.m each). Provision of 1,750 temporary construction worker parking spaces on adjoining Takeda and SDCC sites. All associated site development, service provision, landscaping ans associated works. This application includes modifications to permission ref. SD15A/0343 in relation to the lands west of permitted DUB07 & DUB08 now forming part of the current application. An Environmental Impact Statement (EIS) has been submitted with this application.
Microsoft, Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22.
Use of an existing internal room as a shredding room for operational waste management. No works are required to facilitate the operation as the shredding equipment would be sited wholly within the permitted and completed structure.
DUB06, Data Centre Facility, Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22
Demolition of existing single storey vacant house, garage and outhouse (total gross floor area (GFA) c.291.2sq.m) and removal of existing temporary construction car park; Construction of a single 1-4 storey Central Administration Building and 2 2-storey (with mezzanine) data centres (DUB14 & DUB15) all to be located west of data centres DUB9, DUB10, DUB12 & DUB13 within the MS campus; The Central Administration Building (c.6.03m to c.19.85m high) will comprise central office administration, with staff cafeteria, staff gym and reception (GFA c.3,520sq.m), with provision of PV panels on the roof; each data centre (c.15.6m high to parapet height and c.18.65m to top of roof plant) will include data halls, admin blocks (comprising offices, canteen, loading dock, storage and ancillary areas) and a variety of mechanical and electrical plant areas/structures including Modular Electrical Rooms (MERs), battery rooms and transformer areas. GFA of DUB14 is c.28,072sq.m and GFA of DUB15 is c.28,173sq.m (c.56,246sq.m in total); DUB14 will also include 21 diesel generators and associated sub-stations (E-houses) and 11 mechanical flues (each c.30.75m high); Provision of a gas generator compound (to serve DUB15) containing 20 generators, 5 E-houses and 5 flues (c.25m max height); Provision of a Gas Networks Ireland gas skid including 3 kiosk buildings; Expansion of existing electrical sub-station compound (originally granted under SD07A/0632) to provide 3 additional transformer bays. 3 E-houses and 1 control room, 2 auxiliary transformers; 2 sprinkler tank and pump house areas, 1 additional rainwater harvesting plant; Provision of 168 permanent car parking spaces and 40 cycle parking spaces; Provision of additional western access to the MS campus (to serves the Central Administration Building) from the Business Park estate road (including bridge over the Griffeen River) with existing temporary access to be extinguished; Physical integration with the remainder of the existing MS campus (including internal access roads and landscaping) with associated modifications to the western boundary of the DUB09/DUB10/DUB12/DUB13 data centre development as permitted under SD16A/0088; Provision of a new temporary construction car park (with 802 car spaces, shuttle bus stop and shelter) on site north of the main entrance to the business park; Total gross floor area of the development will be c.59,766sq.m; All associated site development works, drainage and services provision, landscaping, boundary treatments (including security fencing) and associated works; 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.
Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22
Demolition of existing single storey vacant house, garage and outhouse (total gross floor area (GFA) c.291.2sq.m) and removal of existing temporary construction car park; Construction of a single 1-4 storey Central Administration Building and 2 2-storey (with mezzanine) data centres (DUB14 & DUB15) all to be located west of data centres DUB9, DUB10, DUB12 & DUB13 within the MS campus; The Central Administration Building (c.6.03m to c.19.85m high) will comprise central office administration, with staff cafeteria, staff gym and reception (GFA c.3,520sq.m), with provision of PV panels on the roof; each data centre (c.15.6m high to parapet height and c.18.65m to top of roof plant) will include data halls, admin blocks (comprising offices, canteen, loading dock, storage and ancillary areas) and a variety of mechanical and electrical plant areas/structures including Modular Electrical Rooms (MERs), battery rooms and transformer areas. GFA of DUB14 is c.28,072sq.m and GFA of DUB15 is c.28,173sq.m (c.56,246sq.m in total); DUB14 will also include 21 diesel generators and associated sub-stations (E-houses) and 11 mechanical flues (each c.30.75m high); Provision of a gas generator compound (to serve DUB15) containing 20 generators, 5 E-houses and 5 flues (c.25m max height); Provision of a Gas Networks Ireland gas skid including 3 kiosk buildings; Expansion of existing electrical sub-station compound (originally granted under SD07A/0632) to provide 3 additional transformer bays. 3 E-houses and 1 control room, 2 auxiliary transformers; 2 sprinkler tank and pump house areas, 1 additional rainwater harvesting plant; Provision of 168 permanent car parking spaces and 40 cycle parking spaces; Provision of additional western access to the MS campus (to serves the Central Administration Building) from the Business Park estate road (including bridge over the Griffeen River) with existing temporary access to be extinguished; Physical integration with the remainder of the existing MS campus (including internal access roads and landscaping) with associated modifications to the western boundary of the DUB09/DUB10/DUB12/DUB13 data centre development as permitted under SD16A/0088; Provision of a new temporary construction car park (with 802 car spaces, shuttle bus stop and shelter) on site north of the main entrance to the business park; Total gross floor area of the development will be c.59,766sq.m; All associated site development works, drainage and services provision, landscaping, boundary treatments (including security fencing) and associated works; 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.
Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22
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