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Planning application · Co. Wicklow

The townlands of Coolboy, Killinskyduff and Kilbride, Co. Wicklow

Further information requested 25 Jun 2026

Key facts

  • Planning application 2660391 at The Townlands of Coolboy, Killinskyduff and Kilbride, Co. Wicklow: Redevelopment of the existing Arklow 220kV / 110kV substation.
  • The applicant is Eirgrid Plc. The agent is Wsp Ireland Consulting Ltd.
  • It was received by Wicklow County Council on 8 May 2026.
  • Status: Further information requested 25 Jun 2026.
  • The council asked for further information on 25 Jun 2026. It decides after the applicant replies.

Source: the Wicklow County Council planning register, checked 5 Oct 2026. Open the council's file

Planning applications in Co. Wicklow

What and where

Redevelopment of the existing Arklow 220kV / 110kV substation

redevelopment of the existing Arklow 220kV / 110kV substation. The proposed development will take place at the existing substation site and adjacent undeveloped lands, in the townlands of Coolboy, Killinskyduff and Kilbride, Co. Wicklow. The overall site measures approximately 13.69 hectares. The Proposed Development will consist of: The addition of a retaining wall of approximately 130 m in length on the western side of the proposed substation redevelopment area; and site earthworks to construct a finished surface level of the site to 34 mOD (meters above Ordnance Datum); construction of a new 220 kV Gas Insulated Switchgear (GIS) building (71.2 m long, 22.2 m wide, 21.6 m in height) (approximately 1,580 m²); construction of a new 110 kV GIS building (63.9 m long, 15.9 m wide, 16.5 m in height) (approximately 1,016 m²); both of the GIS Buildings will have lightning protection spikes / rods on each of the roofs (8 no. on the 220 kV GIS building and 10 no. on the 110 kV GIS building) (each 2.5 m in height);construction of 4 no. 220 kV / 110 kV power transformers, and associated fire walls, and connections to the new GIS buildings; erection of 3 no. lightning masts (height 18.7 m), located adjacent to the 220 kV / 110 kV power transformers, and 3 no. lightning protection spikes / rods associated with the gantry towers located northwest of the proposed 220 kV GIS building (total height of gantry tower and protection spikes / rods 15.0 m); erection of 1 no. 110 kV and 2 no. 38 kV line / cable interface steel lattice towers located to the south of the proposed substation redevelopment area and associated overhead line and cable works; replacement of 1 no. existing 110 kV poleset in the Kilbride Industrial Estate (southwest of the L2180 local road) with 1 no. 110 kV steel lattice tension tower; and replacement of 2 no. 38 kV polesets (northeast of the L2180 local road) with 2 no. 38 kV steel lattice tension towers; rerouting of 220 kV and 110 kV overhead lines to facilitate the proposed development; cable connections to the 220 kV GIS and 110 kV GIS buildings; new 4.5 m wide internal access road and 14 no. new permanent car parking spaces; associated site excavation, infrastructural and site development works; above and below ground boundary treatment and landscaping including property gates.property fencing (1.4?m height), internal security gate, security fencing (2.6?m height), lighting, surface water drainage, surface water attenuation pond and foul water tank; • new access to the substation onto the R772; • associated demolition / removal of substation tower and gantry infrastructure and metal clad switchgear within the existing Arklow substation compound to facilitate connection for the proposed development; • construction of a landowner access track (hardcore surfacing) of approximately 125?m in length and 5?m in width; • all ancillary development works to facilitate the proposed development including geotechnical and geoenvironmental ground investigations, site excavations, above and below ground infrastructure and site development works, site drainage and associated outfall headwall to facilitate surface water discharge to the Templerainy stream, construction access track, site clearance and landscaping; • temporary use of a construction compound and laydown area, measuring approximately 0.6 hectares in area, on lands to the east of the R772, including temporary access onto the R772; and • temporary use of a construction compound and laydown area, measuring approximately 0.073 hectares in area to the south of the proposed substation development area

Location
Killinskyduff And Kilbride, Co. Wicklow Map
Planning reference
2660391
Application type
Permission
Applicant
Eirgrid Plc
Agent
Wsp Ireland Consulting Ltd
Council planning fileGet alertsDownload PDF

Numbers and dates

Floor area
2,596 m²
Received
8 May 2026

Timeline

  1. Application received
  2. Further information requested

Outlook

What happens next

The council asked for further information on 25 Jun 2026. It decides after the applicant replies.

Work packages named so far

  • Roads and site development worksNamed in the application description
  • Services and drainageNamed in the application description

An outlook from the planning record, not a tender or a confirmed start date.

Documents and evidence

Check the record

  • Council planning fileThe application file 2660391 on eplanning.ie: drawings, reports and the decision.Open the council's file

How we know this

From the Wicklow County Council planning register, checked 5 Oct 2026. We link to the council's own file so you can check the official record before you act.

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