Infrastructure · Co. Dublin

The existing Grange Castle 110kV Substation, Grange Castle Business Park, Clondalkin, Co. Dublin

Decision to grant 7 Oct 2026, open to appeal until 3 Nov 2026

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Key facts

  • Planning application SD26A/0195W at The Existing Grange Castle 110kV Substation, Grange Castle Business Park, Clondalkin, Co. Dublin: Physical extension of c.
  • The applicant is Electricity Supply Board (ESB. The agent is Heather McMeel.
  • It was received by South Dublin County Council on 13 Aug 2026.
  • Status: Decision to grant 7 Oct 2026, open to appeal until 3 Nov 2026.
  • The council decided on 7 Oct 2026 to grant permission. The decision is open to appeal until 3 Nov 2026; the final grant issues after that if there is no appeal, and building work cannot start before it. No site start has been filed yet.

Source: the South Dublin County Council planning register, checked 22 Oct 2026. Open the council's file

More planning applications in Clondalkin · Planning applications in Co. Dublin

What and where

Physical extension of c

Physical extension of c. 1260sq.m. to the existing electricity substation compound and will comprise of an extension of the existing 110kV busbar from bay H18 to create a new 110kV line bay H20, including the installation of new electrical equipment; fencing and all other ancillary development works to facilitate the proposed development.

Location
Clondalkin, Co. Dublin Map
Planning reference
SD26A/0195W
Application type
Permission

Numbers and dates

Floor area
1,260 m²
Project type
Infrastructure
Received
13 Aug 2026
Decision to grant
7 Oct 2026
Appeals until
3 Nov 2026

Timeline

  1. Application received
  2. Decision to grant

Outlook

What happens next

The council decided on 7 Oct 2026 to grant permission. The decision is open to appeal until 3 Nov 2026; the final grant issues after that if there is no appeal, and building work cannot start before it. No site start has been filed yet.

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 SD26A/0195W on planning.agileapplications.ie: drawings, reports and the decision.Open the council's file

Reviewed build intelligence

What the documents establish

Government document review

Application received 13 August 2026 for an extension to the existing substation. No council outcome, construction tender or installation is established.

3 official documents inspected · Checked 2026-09-06 · Official file index

One new AIS bay extends the existing busbar

Application proposal; permission, procurement and installation unverified · New bay and compound extension only; existing network remains context

What the evidence says
The application proposes a circa 1,260 m² compound extension and a new 110 kV air-insulated line bay H20 from existing bay H18. The plan distinguishes proposed works from existing substation equipment and marks itself for planning only. The compound extension area is not building floor area or a count of all existing bays.

Why it may matter — interpretation
A grid-equipment supplier should request the final bay equipment and interface schedules before pricing the new scope.

What is not established
Final equipment ratings, manufacturer, permission, tender status and installation are unknown.

Inspect the evidence

ESB application cover letter · p.3
bay H20 · Issued 2026-08-13 · Application cover letter 13 August 2026, received the same day · Checked 2026-09-06

bay H20

Proposed site layout · p.1
NOT FOR CONSTRUCTION USE · Issued 2026-08-06 · Rev 000 issued for planningAugust 2026; title approval date 6 August 2026. Drawing expressly not for construction. · Checked 2026-09-06

NOT FOR CONSTRUCTION USE

Council acknowledgment of the exact application · p.1
SD26A/0195W · Issued 2026-08-19 · Signed acknowledgment 19 August 2026 confirms receipt 13 August; catalogue row is labelled 14 August. Neither is a permission. · Checked 2026-09-06

SD26A/0195W

Surface water connects through the existing network

Application proposal; permission, procurement and installation unverified · Drainage connections for the proposed compound extension

What the evidence says
The cover letter proposes new hardstanding drainage into the existing on-site surface-water sewer, which discharges through an existing fuel interceptor. It says the extension requires no foul-water or watermain infrastructure. It does not specify a new interceptor for this package.

Why it may matter — interpretation
A civil contractor should verify the existing sewer and interceptor interface before pricing new drains.

What is not established
Final pipe sizes, capacity verification, approved connection and construction are unverified.

Inspect the evidence

ESB application cover letter · p.5
existing surface water network · Issued 2026-08-13 · Application cover letter 13 August 2026, received the same day · Checked 2026-09-06

existing surface water network
Remaining document questions
  • Which later official decision, approved detail or revision changes these source-specific findings?
  • Has a phase-specific official record established the selected equipment or installed specification?

Selected pages of 3 government-published PDFs were visually inspected. Only the named supporting PDFs and declared pages were inspected for these findings; remaining catalogue entries and later compliance are not reviewed. Proposals do not establish procurement or installed work.

How we know this

From the South Dublin County Council planning register, checked 22 Oct 2026. We link to the council's own file so you can check the official record before you act. Facts from the planning documents were read from the documents in that file.

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