Gorsaf Pwer Wylfa / Wylfa Power Station, Bae Cemaes / Cemaes Bay

1. 9 Sep 2024

   Received by Isle of Anglesey

2. 4 Oct 2024

   Decision issued: Datblygiad Caniataëdig / Permitted Development

3. 16 Sep 2026

   Added to PlanIndex

Isle of Anglesey granted permission on 4 October 2024, subject to any conditions on the decision notice. Work must normally begin within five years or the permission lapses. More in our guide to what happens after a planning decision.

An outline application tests the principle of developing a site, holding back details such as appearance and landscaping as reserved matters for later approval. More in our guide to planning application types.

• Gorsaf Bŵer Wylfa Power Station, Cemaes Bay.

  FPL/2024/148 Submitted 10 Jun 2024 50 yards away

  95% historically approved · decision due ~14 Aug

  Cais llawn ar gyfer symud ac adleoli adeilad segur (a elwir yn Adeilad 187) i'w ddefnyddio fel Cyfleuster Clirio Gwastraff Anweithredol yn / Full application for removal and relocation of redundant building (known as Building 187) for use as a Non-Active Waste Clearance Facility at

  Status unknown Full applications 7 docs

• Wylfa, Cemaes

  VAR/2022/39 Submitted 27 May 2022 50 yards away

  Cais o dan Adran 73 i ddiwygio amod (01) (cynllun tynnu ac ail-osod) o ganiatâd cynllunio rhif VAR/2021/42 (diwygio amod (01) o gais 38C310E er mwyn caniatau estyniad 12 mis) er mwyn ymestyn hyd y caniatâd am gyfnod o bedair blynedd yn / Application under Section 73 for the variation of condition (01) (removal and re-instatement scheme) of planning permission reference VAR/2021/42 (variation of condition (01) of 38C310E to allow 12 month extension) so as to extend the duration of the permission by a period of four years at

  Granted Conditions Extension 7 docs

• Wylfa, Cemaes

  VAR/2026/13 Submitted 9 Apr 2026 50 yards away

  Cais o dan Adran 73 i ddiwygio amod (01) (cynllun tynnu ac ail-osod) o ganiatâd cynllunio rhif VAR/2022/39 (diwygio amod (01) o gais 38C310E er mwyn caniatau estyniad 12 mis) er mwyn ymestyn hyd y caniatâd am gyfnod o bedair blynedd yn / Application under Section 73 for the variation of condition (01) (removal and re-instatement scheme) of planning permission reference VAR/2022/39 (variation of condition (01) of 38C310E to allow 12 month extension) so as to extend the duration of the permission by a period of four years at

  Granted Amendments Extension 8 docs

• Gorsaf Bwer Wylfa Power Station, Cemaes.

  FPL/2022/131 Submitted 20 May 2022 50 yards away

  Cais llawn ar gyfer gosod colofn o 10 llifoleuadau annibynnol yn / Full application for the installation of 10 no. freestanding floodlight columns at

  Granted Full applications 11 docs

• Wylfa Power Station, Cemaes

  DEM/2021/2 Submitted 24 Aug 2021 50 yards away

  Caniatâd blaenorol arfaethedig i ddymchwel adeiladau rhif 44, 45, 46, 51, 53, 54, 58, 77, 78, 114, 118, 123 a 173 ac unrhyw geblau, peipiau, dyfrbibellau a ffliwiau yn / Prior Approval for proposed demolition of buildings 44, 45, 46, 51, 53, 54, 58, 77, 78, 114, 118, 123 & 173 and any associated cables, pipes, conduits and flues at

  Granted Other Demolition 8 docs

• Wylfa, Cemaes

  VAR/2021/42 Submitted 28 May 2021 50 yards away

  Cais o dan Adran 73 i ddiwygio amod (01) o caniatâd cynllunio rhif 38C310E (Cadw compownd gweithwr) er mwyn ymestyn bywyd y caniatad am 12 mis ar dir yn / Application under Section 73 for the variation of condition (01) of planning permission reference 38C310E (Retention of workers compound) so as to allow a 12 month extension to the permission on land at

  Granted Amendments Extension 6 docs

• GWY/2026/2 Decided

  Tir yn a ger yr hen Safle Ferodo / Land At And Adjacent To The Former Ferodo Site, Griffiths Crossing, Caernarfon, LL55 1TP

  Cais amlinellol gyda holl faterion wedi eu cadw'n ol ar gyfer dymchwel adeiladau a strwythurau presennol, ailraddio'r tir a codi adeilad canolfan data (B8) ynghyd a chyfarpar cysylltiol i gynnwys generaduron, peirianwaith, cyfarpar, is-orsaf(oedd), mynedfeydd, parcio ac ardaloedd gwasanaethu, gwaith draenio a peirianyddol gan gynnwys cysylltu ac ail-leoli gwasanaethau / Outline application will all matters reserved for the demolition of existing buildings/structures, re-grading of land and erection of Class B8 data centre building(s) with all associated back-up generators, plant, equipment, sub-station(s), accesses, parking and servicing areas, drainage and engineering works, including services diversion/connection.

  Received 2 Sep, published by the council 16 Sep 2026 Outline
• OP/2025/1 Granted

  Llanfawr Road, Caergybi / Holyhead.

  Cais amlinellol ar gyfer codi 9 annedd fforddiadwy yn cynnwys manylion llawn o'r mynedfa, ymddangosiad, gosodiad a graddfa ar dir ger / Outline application for the erection of 9 affordable dwellings which includes full details of access, appearance, layout and scale on land near

  Received 30 Jan, published by the council 16 Sep 2026 Outline
• SCR/2026/21 Decided

  System storio ynni batri, Rhosgoch / Battery energy storage system, Rhosgoch

  Barn sgrinio ar gyfer gosod cebl o dan y ddaear i gysylltu â’r grid (safle Wylfa) i wasanaethu’r System Storio Ynni Batri a gymeradwywyd yn flaenorol ynghyd ag adeiladu a chodi isbwerdy, gorsafoedd trawsnewid a gwaith datblygu cysylltiedig yn / Screening opinion for the installation of a underground grid connection cable (at Wylfa site) to serve previously approved Battery Energy Storage System together with the construction and erection of a substation, transformer stations and associated development at

  Received 1 May, published by the council 6 Aug 2026 Outline
• SCR/2026/13 Decided

  Crud Yr Awel, Llanfaethlu.

  Barn sgrinio ar gyfer gosod paneli solar ar y ddaear yn / Screening opinion for the installation of ground mounted solar panels at

  Received 12 Mar, published by the council 6 Aug 2026 Outline
• DAG/2026/10 Granted

  Rhyd Goch, Llanfaethlu

  Cais i bennu os oes angen caniatâd blaenorol ar gyfer codi sied amaethyddol ar gyfer cadw peiriannau ar dir yn / Application to determine whether prior approval is required for the erection of an agricultural shed to store machinery on land at

  Received 22 Apr, published by the council 6 Aug 2026 Outline