Afallon, Clynnog Fawr, Caernarfon, Gwynedd, LL54 5BT

1. 29 Aug 2025

   Received by Gwynedd

2. 6 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within five years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 4, Llys Eben, Clynnog Fawr, Caernarfon, Gwynedd, LL54 5AQ

  C25/0876/34/DT Submitted 28 Nov 2025 121m away

  Estyniad unllawr to fflat newydd ir cefn ac ochr. New single storey flat roof side & rear extension.

  Refused Householder Extension
  Small domestic

• Petrol Station Clynnog Fawr, Clynnog Fawr, LL54 5NL

  C26/0146/34/HY Submitted 5 Mar 2026 346m away

  Decision due ~30 Apr

  Cais ôl-weithredol ar gyfer arddangos 2 arwydd Adnabod Prisiau union yr un fath sy'n gysylltiedig â gorsaf betrol Clynnog Fawr, yn cynnwys 1 arwydd annibynnol o fewn y blaengwrt ac 1 arwydd annibynnol ar dir i'r De o'r pentref. Retrospective application for the display of 2 identical Price Identification signs associated with the Clynnog Fawr petrol filling station, comprising 1 No. freestanding sign within the forecourt and 1 No. freestanding sign on land to the South of the village.

  Status unknown Advertising

• C26/0377/03/DT Status unknown

  TŶ GWYN Ffordd Cwmorthin, Tanygrisiau, Blaenau Ffestiniog, Gwynedd, LL41 3SN

  Estyniad Cefn arfaethedig ac addasiadau cysylltiedig Proposed rear extension and associated alterations

  24 Jun 2026 Householder
• C26/0373/39/DT Status unknown

  Tawelfa, Llwyn Onn Estate, Abersoch , LL53 7EP

  Cais am addasiadau ac estyniadau i ailfodelu'r annedd bresennol drwy:- estyniad ochr a chefn, addasiadau i'r to i greu llety ar y llawr cyntaf a gwelliannau effeithlonrwydd ynni i'r rhannau o'r tŷ sy'n cael eu cadw. Application for alterations and extensions to remodel the existing dwelling through:- side and rear extension, roof alterations to create first floor accommodation and energy efficiency upgrades to the parts of the house being retained.

  23 Jun 2026 Householder
• C26/0365/09/DT Status unknown

  11 Corbett Close, Tywyn, Gwynedd, LL36 0BL

  Cais am estyniad llawr daear a llawr cyntaf i gynnwys balconi / Application for a ground and first floor extension to dwelling including balcony

  19 Jun 2026 Householder
• C26/0364/42/DT Status unknown

  HAFAN WEN Lôn Golff, Morfa Nefyn, Pwllheli, Gwynedd, LL53 6DA

  Estyniad ochr llawr cyntaf ac estyniad llawr isaf unllawr. First floor side extension and ground floor single storey extension.

  18 Jun 2026 Householder
• C26/0354/14/DT Status unknown

  BRYN MÔR England Road North, Caernarfon, Gwynedd, LL55 1HS

  New first floor balcony to front of property along with new glazed doors. Balconi newydd ar y llawr cyntaf ar flaen yr eiddo ynghyd â drysau gwydr newydd.

  15 Jun 2026 Householder