SD22A/0420

Development on a Site that includes a two storey residential property on lands to the south of the New Nangor Road (R134), Dublin 22; and on land within the townlands of Ballybane and Kilbride within Profile Park, Clondalkin, Dublin 22 on an overall site of 3.79hectares; The development will consist of the demolition of the two storey dwelling (207.35sqm) and associated outbuildings and farm structures (348.36sq.m); and the construction of 1 two storey data center with plant at roof level and associated ancillary development that will have a gross floor area of 12,893sqm that will consist of the following, 1 two storey data center (Building 13) with a gross floor area of 12,893sqm. It will include 13 emergency back-up generators of which 12 will be double stacked and one will be single stacked within a compound to the south-western side of the data center with associated flues that each will be 22.316m in height and 7 hot-air exhaust cooling vents that each will be 20.016m In height; The data center 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 that will provide emergency power to the admin and ancillary spaces. Each generator will include a diesel tank and there will be a refuelling area to serve the proposed emergency generators; The data center will have a primary parapet height of 14.246m above ground level, with plant and screen around plus a plant room above at roof level. The plant room has an overall height of 21.571m; Construction of an internal road network and circulation areas, with a staff entrance off Falcon Avenue to the east, as well as a secondary vehicular access for service and delivery vehicles only across a new bridge over the Baldonnel Stream from the permitted entrance as granted under SDCC Planning Ref. SD21A/0241 from the south-west, both from within Profile Park that contains an access from the New Nangor Road (R134); Provision of 60 car parking spaces (to include 12 EV spaces and 3 disabled spaces), and 34 cycle parking spaces; Signage (5.7sq.m) at first floor level at the northern end of the eastern elevation of the data center building; Ancillary site development works will include footpaths, attenuation ponds that will include an amendment to the permitted attenuation pond as granted to the north of the Baldonnel Stream under SDCC Planning Ref. SD21 A/0241, as well as green walls and green roof. The installation and connection to the underground foul and storm water drainage network, and installation of utility ducts and cables, that will include the drilling and laying of ducts and cables under the internal road network within Profile Park. Other ancillary site development works will include hard and soft landscaping that will include an amendment to the permitted landscaping as granted under SDCC Planning Ref. SD21A/0241, lighting, fencing, signage, services road, entrance gates, and sprinkler tanks; An Environmental Impact Assessment Report (EIAR) has been submitted with this application.

Refused

Core Refusal Reason

The Planning Authority initially refused permission due to perceived insufficient capacity in the electricity grid and a lack of significant on-site renewable energy. However, the Inspector recommended a grant of permission, concluding that the applicant had demonstrated a valid grid connection agreement via EirGrid and sufficient engagement with Power Purchase Agreements (PPAs) to satisfy Policy EDE7 and national data center strategies.

Decision Maker's Conclusion

  • The proposed data center is situated on appropriately zoned 'Enterprise and Employment' lands within an established business park, making the principle of development acceptable under the South Dublin County Development Plan.
  • The Inspector is satisfied that the applicant has secured a grid connection agreement from EirGrid and provided robust evidence of engagement with PPA brokers, meeting the requirements for energy efficiency and renewable energy transition.
  • Potential environmental impacts regarding noise, biodiversity, and landscape are considered minimal and manageable through the implementation of the mitigation measures set out in the EIAR and the recommended planning conditions.

Cited Policies (CDP)

EDE7 Objective 2Section 12.9.4EDE1 Objective 6EDE7 Objective 1EDE7 Objective 3Policy CS1Policy NCBH11Policy GI1 Objective 4Policy GI2 Objective 2Policy QDP2Policy QDP3Policy QDP4Policy QDP7Policy QDP8Policy QDP11Policy EDE1Policy EDE3EDE4 Objective 4EDE4 Objective 8Policy EDE5 Objective 4Section 9.3Section 12.10.1Section 12.5.2Policy GI3Policy GI4Policy GI5Policy IE3Policy SM2Policy SM7Section 4.3.1Section 12.7.6Section 12.11.1Section 12.11.3

Decision Document Summary

The proposal consists of a 10-year planning permission for a two-story data center (DUB 13) with a gross floor area of 12,893sqm, including 13 emergency backup generators, internal road networks, and a new bridge over the Baldonnel Stream. The 3.79ha site is located within Profile Park, Clondalkin, and represents Phase 3 of an existing data center campus. The Planning Authority refused the application, citing concerns over grid capacity, reliance on gas-powered plants, and the omission of an upd...
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