CNICHT, 25 Cae Sarn, Y Groeslon, Caernarfon, Gwynedd, LL54 7TW

1. 13 Apr 2026

   Received by Gwynedd

2. 6 Aug 2026

   Added to PlanIndex

Gwynedd granted permission, 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 amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• 4, GOSEN TERRACE Lôn Llainffynnon, Y Groeslon, Caernarfon, Gwynedd, LL54 7TR

  C25/0586/17/DT Submitted 18 Aug 2025 260m away

  Gosod Pwmp Gwres Ffynhonnell Aer ar edrychiad blaen yr eiddo. Proposed installation of Air Source Heat Pump to front elevation

  Granted Householder
  Domestic

• Arlwyn, 2, Grugan Terrace, Y Groeslon, Caernarfon, Gwynedd, LL54 7TD

  C26/0111/17/DT Submitted 23 Feb 2026 408m away

  Ffenestr gromen ail lawr cefn yr eiddo i greu ystafell wely ychwanegol. Second floor dormer to the rear of the property to create an additional bedroom.

  Granted Householder Loft or dormer
  Domestic

• C26/0349/03/AC Status unknown

  1, CASTELL BARLWYD Glanypwll Road, Tanygrisiau, Blaenau Ffestiniog, Gwynedd, LL41 3RH

  Cais i ddiwygio amod 2(cynlluniau cymeradwy) i newid dyluniad yr estyniad o ganiatad (C13/0879/03/LL) / Application to amend condition 2 (approved plans) to alter the design of the extension on planning permission (C13/0879/03/LL)

  9 Jun 2026 Amendments
• C26/0337/39/DA Status unknown

  LEE BANK Lon Rhoslyn, Abersoch, Pwllheli, Pwllheli, LL53 7BB

  Diwygiad ansylweddol i ganiatâd cynllunio C21/0086/39/DT i leihau maint y tŷ cychod, ail leoli drws y garej a newid strwythur y to o fflat i to brig. Non-material amendment to planning permission C21/0086/39/DT to reduce the size of the original boathouse, reposition of the garage door and change roof structure from flat to pitched.

  2 Jun 2026 Amendments
• C26/0311/13/DA Status unknown

  5 & 6 Llys Victoria, Stryd Fawr, Bethesda, Bangor, LL57 3AN

  Diwygiad ansylweddol i gais cynllunio C25/0422/13/LL er mwyn diwygio dyluniad y ffenestr gromen i gynnwys 2 ffenestr (3 yn flaenorol) Non-material amendment to planning application to amend the design of the dormer window to include 2 windows (formerly 3).

  20 May 2026 Amendments
• C26/0307/42/DA Status unknown

  Tir Maes Twnti, Morfa Nefyn, Pwllheli, LL53 6EU

  Cais am ddiwygiadau di-faterol i ganiatâd cynllunio C24/0689/42/LL er mwyn newid lefelau lloriau gorffenedig y lleiniau er mwyn sicrhau cydymffurfiaeth gydag Dogfen M a draenio gydag man diweddariadau cydlyniad i'r gosodiad. Application for non-material amendments to planning approval C24/0689/42/LL for changing the finished floor levels of the plots to ensure compliance with Doc M and drainage, alongside minor coordination updates to the layout

  18 May 2026 Amendments
• C26/0303/18/AC Status unknown

  Welsh Slate Museum, GILFACH DDU, Llanberis, Caernarfon, Gwynedd, LL55 4TY

  Diwygio amod rhif 2 (unol a'r cynlluniau) ar caniatad C24/0977/18/LL i godi uchder to y caffi, gwaith tirlunio a materion draenio / Amend condition number 2 (as per plans) on consent C24/0977/18/LL to increase roof height of cafe, landscaping and drainage matters

  18 May 2026 Amendments