Tds. of Milltown & Coolyhenan
Proposed development
Extension of permission for planning ref 12/1002: an electrical transmission substation and associated infrastructure and works, within and adjacent to the site of the existing 220/110kV Killonan substation. The development consists of (1) construction of a 220kV Gas Insulated Switchgear (GIS) substation building, of 1,856m2 gross floor area, with a maximum height of approximately 14 metres above ground level, (2) construction of a 110kV GIS substation building of 1,642m2 gross floor area, with a maximum height of approximately 12.5 metres above ground level, (3) construction of associated and ancillary outdoor electrical equipment and other apparatus; construction of three lightning masts of approximately 18.4 metres in height; internal access road, car parking areas, boundary treatment, associated drainage and site development works, (4) associated transfer of circuits from the existing 220/110kV Air Insulated Switchgear (AIS) substation to the…
You’re reading part of this description. Subscribers see the full text of every application.
Timeline
- Application received
- Decision
- Permission expires
Application details
- Application type
- Extension Of Duration
- Council status
- Application Finalised
- Decision
- Conditional
- File number
- Register updated
- 11 Nov 2026
Site and nearby applications
Guests see 500 m.
- This site
- New
- Decision
- Further info
- Other
1 application within 500 m
- Decision ESB's Killonan 220kV Substation, Milltown, Killonan Permission · Jan 7 2025 90 m