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Installation of new underground cables, and cable sealing ends, shunt reactor, gantry and the widening of part of the existing access road within the fenced compound at Trawsfynydd substation and associated ancillary works as part of the Pentir to Trawsfynydd Reinforcement Project

Decommissioning Site, Trawsfynydd. LL41 4DT

All consultations completeReference: NP5/73/287VEryri National Park

Last published check: 3 Oct 2026, 01:02. Check the council record for more recent changes.

Application location

Decommissioning Site, Trawsfynydd. LL41 4DT

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Application summary

Status
All consultations complete
Application type
Full
Received
2 Jan 2026
Validated
Not published
Determination deadline
20 Apr 2026
Local authority
Eryri National Park

Application overview

Installation of new underground cables, and cable sealing ends, shunt reactor, gantry and the widening of part of the existing access road within the fenced compound at Trawsfynydd substation and associated ancillary works as part of the Pentir to Trawsfynydd Reinforcement Project

Proposal details

Reference
NP5/73/287V
Alternative references
PP-14375500
Ward
Trawsfynydd ED
Parish
Maentwrog
Agent
Laura Richardson
UPRN
10070274887

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Documents 22 of 22

DocumentPublishedAction
Trawsfynydd Existing Site Layout.pdfNot publishedView
Trawsfynydd Proposed Overall Layout.pdfNot publishedView
Trawsfyndd Location Plan.pdfNot publishedView
ApplicationFormRedacted.pdfNot publishedView
Datganiad_Cymunedol_ac_Ieithyddol_Gwaith_Trawsfynydd.pdf12 Jan 2026View
Gwaith_Trawsfynydd_Adroddiad_yr_Ymgynghoriad_Cyn_Ymgeisio.pdf12 Jan 2026View
Gwaith_Trawsfynydd_Datganiad_Cynllunio.pdf12 Jan 2026View
Trawsfyndd_Proposed_Underground_Works.pdf12 Jan 2026View
Trawsfynydd_Community_and_Linguistic_Statement.pdf12 Jan 2026View
Trawsfynydd_Design_and_Access_Statement.pdf12 Jan 2026View
Trawsfynydd_Existing_and_Proposed_Sections.pdf12 Jan 2026View
Trawsfynydd_Existing_Site_Layout.pdf12 Jan 2026View
Trawsfynydd_Outline_Surface_Water_Drainage_Statement.pdf12 Jan 2026View
Trawsfynydd_PAC_Report.pdf12 Jan 2026View
Trawsfynydd_Proposed_Above_Ground_Works.pdf12 Jan 2026View
Trawsfynydd_Works_Planning_Statement.pdf12 Jan 2026View
Trawsyfnydd_Outline_Construction_Traffic_Management_Plan.pdf12 Jan 2026View
S - Priffyrdd Ll.C / WG Highways 02.02.262 Feb 2026View
S - CNC / NRW3 Feb 2026View
S - Ecoleg / Ecology 13.05.2618 May 2026View
S - Llywodraeth Cymru / Welsh Government 02.06.262 Jun 2026View
Rh.P15 Jul 2026View

Documents open on the council website. Browse council documents if a link has changed.

Application timeline

Council milestones and published deadlines. A deadline passing does not confirm a decision.

  1. Application date

    Published milestoneCouncil source

  2. Received date

    Published milestoneCouncil source

  3. Registration date

    Published milestoneCouncil source

  4. Consultation expiry date

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

  5. Statutory expiry date

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

  6. Site notice date

    Published milestoneCouncil source

  7. Site notice end date

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

  8. Decision due date

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

  9. Press notice start date

    Published milestoneCouncil source

  10. Publicity end date

    Past published deadline

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    Council source

  11. Extension date

    Past published deadline

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    Council source

  12. Dispatch date

    Published milestoneCouncil source

  13. Decision date

    Published milestoneCouncil source

  14. Decision expiry date

    Published deadline

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    Council source

Decision & conditions

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Planning conditions

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