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Land Along The A483 Corridor, Porthmadog

C25/0946/44/EIAEnvironmental Impact AssessmentApproved
Outline / PiP

Approved on 28 September 2026

Council decision: Approved with Conditions

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Estyniad i gompownd ceblau selio pen presennol Wern gan gynnwys mynediad parhaol newydd, Compownd selio pen newydd ac adeilad pen twnnel gyda mynediad parhaol ym Minffordd; tynnu compownd selio pen presennol Garth; gosod ceblau 400 cilofolt (kV) newydd i ddisodli ceblau 400 kV a 132 kV di-angen; ac isadeiledd a gwaith atodol cysylltiedig. The extension of the existing Wern Cables Sealing End Compound (CSEC) including a new permanent access; a new Minffordd CSEC and Tunnel Head House (THH) with permanent access; the removal of the existing Garth CSEC; installation of new 400 kilovolt (kV) cables to replace redundant 400 kV and 132 kV cables; and other associated infrastructure and ancillary works.

Received
24 December 2025
Ward
Porthmadog (East)
  1. Received24 Dec
  2. Validated
  3. Consult.29 Jan
  4. Target
  5. Decided28 Sep

Decided in 278 days (council typically 84)

About this application

This is an outline application for an extension at Land Along The A483 Corridor, Porthmadog,. Gwynedd has handled 283 applications of this type. This one was decided in 278 days, 28 weeks longer than Gwynedd's typical decision time. There are no previous applications recorded at this address. In the past year there have been 6 applications across Porthmadog (East). We hold 45 applications in total for the LL49 postcode area.

100% of outline applications at Gwynedd Council were approved. Across all application types, the council typically decides in about 12 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Postcode
LL49 9LR
Application type
Environmental Impact Assessment
Scale / size
Medium
Parish
Porthmadog

Planning application dates

Validated
24 December 2025
Consultation expiry
29 January 2026
Consultation end
29 January 2026

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Associated applications

  1. 2026
    2 Nov

    Cais Cynllunio ar gyfer gosod dwy orsaf bwmpio dros dro a datblygiad ategol ar dir ger Llyn Bach, a rhyddhau…

    PendingApplicationRelatedC26/0665/44/EIA
  2. 2025
    24 Dec

    Estyniad i gompownd ceblau selio pen presennol Wern gan gynnwys mynediad parhaol newydd, Compownd selio pen…

    This applicationApprovedOutlineC25/0946/44/EIA

Source: Gwynedd

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