SD25A/0071W
GrantedDublin - South Dublin County Council
Proposed Development
PERMISSION for development at this site at Grange Castle Business Park. The site is located within the Microsoft Grange Castle Campus and adjoining the existing substation. The development will consist of revisions to parent permission SDCC Reg. Ref. SD24A/0188W to include the following: Removal of internal mezzanine floor level (175sqm). Removal of internal staircase. Introduction of external staircase to be located adjacent the south façade and enclosed in screening panels. All other developments as permitted under the SDCC Reg. Ref. SD24A/0188W: A permitted storage facility (approx. c.401sqm and c.14m in height) and set down area to house machinery for the ongoing maintenance of the existing Microsoft Grange Castle Campus. All associated landscaping, site development works, site lighting, boundary treatments and all other ancillary works.
View the full application file on the council's planning portal →Application Timeline
Application received
25 Mar 2025
Decision: Grant Permission
14 May 2025
Decision due
19 May 2025
Grant issued
25 Jun 2025
Application Details
- Location
- Grange Castle Business Park, New Nangor Road (R134), Clondalkin, Dublin 22, D22F1W8
- Applicant
- N/A
- Application Type
- Permission
- Planning Authority
- South Dublin County Council
- Eircode
- D22F1W8
- Site Area
- 9900 ha
- Floor Area
- 401 sq m
Timeline
- Registration Date
- 25 March 2025
- Status
- Final Grant
- Decision
- Grant Permission
- Decision Date
- 14 May 2025
- Grant Date
- 25 June 2025
- Permission Expires
- 24 June 2030
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.
Microsoft Ireland Operations Ltd. intend to apply for PERMISSION for development at this site at Grange Castle Business Park, New Nangor Road (R134), Clondalkin, Dublin 22. The site is located within the Microsoft Grange Castle Campus and adjoining the existing substation. The development will consist of a storage facility (approx. c.401sqm and c.14m in height) and set down area to house machinery for the ongoing maintenance of the existing Microsoft Grange Castle Campus. All associated landscaping, site development works, site lighting, boundary treatments and all other ancillary works.
Grange Castle Business Park, New Nangor Road (R134), Clondalkin, Dublin 22, D22F1W8
Construct a new access road as follows: Construction of 550m of 9m wide single carriageway road; Construction of cycletracks, footpaths and verges; Provision of drainage and associated features; Provision of public lighting, road markings and signage; Relocation of services where necessary; Provision of other services and utilities where necessary; Provision of landscaping finishes; All associated site works as necessary to complete the scheme. Plans and particulars of the proposed development are available for inspection at:- South Dublin County Council, County Hall, Tallaght, Dublin 24, between the hours of 9:30am - 12:45pm and 2:00pm - 4:30pm Monday to Thursday and 9.00 am - 4.00 pm Friday and South Dublin County Council,Civic Offices, Clondalkin, Dublin 22 between the hours of 9:30am - 12:45pm and 2:00pm - 4:30pm Monday to Thursday and 9.30 am - 4.00 pm Friday From Wednesday 8th May 2013 - Wednesday 19th June 2013. Submissions and observations with respect to this matter, dealing with the proper planning and sustainable development of the area, in which the development would be situated, may be made in writing to: The Senior Executive Officer, Corporate Services, South Dublin County Council, County Hall, Tallaght, Dublin 24 or by email to : info@grangecastle.ie. Closing date for receipt of submissions is up to and including 12.00 noon on Wednesday, 3rd July, 2013. http://www.sdublincoco.ie/index.aspx?pageid=939&pid=26035
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
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
Provision of 2 single storey data centres (DUB07 & DUB08) immediately west of existing data centre (DUB06). These data centres replace 6 buildings permitted under SD14A/0194. Each data centre will contain the following; offices, computer and associated support areas, electrical component rooms, plant and associated equipment, 5 flues (each c.25m high), plant at roof level. Gross floor area of each c.16,900sq.m (c.33,800sq.m in total). The height of each data centre will range between c.6.5m & c.13m high. Also proposed are 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. Revision to permitted car parking and additional parking to now provide a total of 257 spaces (including 5 universal accessible spaces) serving DUB06, DUB07 and DUB08. Provision of 10 bicycle parking spaces. Relocation of fire sprinkler water storage tank (c.128sq.m) permitted under SD14A/0194. Otherwise no changes to the existing DUB06 data centre, plant/tanks, signage, landscaping as permitted/modified under Ref's SD13A/0265 & SD14A/0194. An Environmental Impact Statement (EIS) has been submitted with this planning application.
Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22
Development consists of alterations and additions to previously approved development under Reg. Ref. SD13A/0265 to provide for: a reduction in the gross floor area of the permitted building from 35,000sq.m (with a data capacity of 32 MW) to 21,350sq.m (data capacity 17.6 MW). The altered building will include an administration area with office space of 2,225sq.m. As a result, permitted elevations will be altered and the number of flues reduced from 9 to 5. The finished floor level (of 71m OD and the height of flues (of 25m at 95.85m OD) to the permitted (altered) building will be developed as granted under Reg. Ref. SD13A/0265; the permitted surface area to the front of the building is altered to provide 5 truck parking spaces; 6 new buildings are proposed to the west of the altered building to provide data facilities totalling 28,383sq.m. The new buildings will be in the range of 6.362 m - 8.689 m high and to a range of finished floor levels between 68.5m and 69.5m OD; a total of 12 new flues (each 15m high) are proposed; provision of associated plant to include sprinkler tank (670m3) and pump room (69sq.m), external generators (20 no.) (2112sq.m. in total) on hard-standing, reserve switchgear (378sq.m), external plant (646sq.m), water tanks (240sq.m), landscaping, site services, signage, and parking area with electric gates for vehicular access along with electric buggies parking to be provided; provision of heat dispersal infrastructure to facilitate the potential recycling of energy by third parties; 47 new car parking spaces are proposed; otherwise, the site will be developed pursuant to Reg. Ref. SD13A/0265 to provide external plant totalling 5,718sq.m to include 3 no. each of 110KV transformers totalling 974sq.m, fire safety sprinkler tanks (670m3) with an associated pump room (69sq.m), ancillary site works, signage, perimeter services road, 155 car parking spaces, a site perimeter berm and landscaping to Technology Park Road and Grange Castle estate roads. The net result of the above is that the entire data facility will now comprise a total of 49,733sq.m (14,733sq.m over permitted) with a total data capacity of 49.6 MW (17.6 MW over permitted); all of the above for the sole use of Microsoft Ireland. En EIS has been submitted with this application.
Grangecastle Business Park, Nangor Road, Clondalkin, Dublin 22.
Construction of a single storey data centre with plant at roof level (total gross floor area 35000sq.m.) which comprises the following uses: offices, computer and associated support areas, electrical component rooms, plant and associated equipment and new three string 110KV transformer of 974sq.m. for the sole and only use of Microsoft Ireland in connection with this installation. For site safety purposes the provision of sprinkler tanks of 670m3 and associated tank pump room of 69sq.m. are also proposed. Also included are ancillary site works for connection to existing Grange Caste infrastructural services as well as fencing, signage, perimeter services road around the building, 148 car parking spaces including two disabled car parking spaces. The site perimeter will be enclosed with berming and landscaping to the frontage onto Technology Park Road and the other Grange Castle estate roads. An EIS (Environmental Impact Statement) has been submitted with this application.
Grange Castle Business Park, Nangor Road, Clondalkin, Dublin 22.
Construction of a single data centre with plant at roof level (total gross floor area 35,000 sq.m. as the approved SD13A/0143 scheme). The single change between the approved SD13A/0143 and this application being that the finished floor level is now proposed to be 71.00 OD and not 69.00 OD as per the approved - as a result of this change the heights of the permitted flues, 93.85 OD will be 95.85 OD but will remain 25 metres tall as per SD13A/0143). Otherwise the proposed development remains as the granted SD13A/0143 and comprises of the following uses : - offices, computer and associated support areas, electrical component rooms, plant and associated equipment and new three string 110KV transformer of 974sq.m. for the sole and only use of Microsoft Ireland in connection with this installation. For site safety purposes the provision of sprinkler tanks of 670m3 and associated tank pump room of 69sq.m. are also proposed; also included are ancillary site works for connection to existing Grange Castle infrastructural services as well as fencing, signage, perimeter services road around the building, 155 no. car parking spaces including 8 no. disabled car parking spaces; the site perimeter will be enclosed with berming and landscaping to the frontage onto Technology Park Road and the other Grange Castle estate roads. An Environmental Impact Statement has been submitted with this application.
Grange Castle Business Park, 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
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