Summerville, 89 Ffordd Wynne, Blaenau Ffestiniog, Gwynedd, LL41 3DW

1. 17 Oct 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

• 7 Heol Glynllifon, Blaenau Ffestiniog, Gwynedd, LL41 3AF

  C26/0196/03/TC Submitted 27 Mar 2026 222m away

  Decision due ~22 May

  Tystysgrif Cyfreithlon Defnydd arfaethedig ar gyfer dymchwel estyniad cefn ac amnewid gyda estyniad un llawr. Certificate of Lawful Use for the proposed removal of rear extension to be replaced with single storey extension.

  Status unknown Lawful development Extension
  Small domestic

• D P Davies, D P Davies, 26 High Street, Blaenau Ffestiniog, Gwynedd, LL41 3AA

  C25/0909/03/LL Submitted 5 Dec 2025 287m away

  Estyniad a grisiau allanol / Extension and external staircase

  Granted Full applications Extension

• THE CABIN Ffordd Dorfil, Blaenau Ffestiniog, Gwynedd, LL41 3HN

  C26/0184/03/LL Submitted 19 Mar 2026 416m away

  Decision due ~14 May

  Cais i newid defnydd o ddefnydd cymunedol (Use Class D1) i ddefnydd manwerthu ar gyfer siop pysgod acwariwm (Use Class A1) i werthu pysgod trofannol, pysgod dwr oer, acwariwm, planhigion acwariwm, a darpar cadw pysgod/ Application for the proposed change of use of an existing building from community use (Use Class D1) to a specialist aquatics retail shop (Use Class A1) for the sale of tropical fish, cold-water fish, aquariums, aquatic plants and fish keeping equipment

  Status unknown Full applications

• HAFANNEDD Summerhill Terrace, Blaenau Ffestiniog, Gwynedd, LL41 3EQ

  C25/0934/03/DT Submitted 17 Dec 2025 444m away

  Estyniad deulawr cefn. Two-storey rear extension.

  Granted Householder Extension
  Domestic

• Shop, 21 Church Street, Blaenau Ffestiniog, Gwynedd, LL41 3HB

  C26/0135/03/RA Submitted 3 Mar 2026 464m away

  Decision due ~28 Apr

  Cais i rhyddhau amod 3(Gorffeniad) ac amod 5(Datganiad dull safle) o ganiatad C22/0130/03/LL / Application to discharge condition 3(Finishes) and condition 5(Site method statement) from planning consent C22/0130/03/LL

  Status unknown Reserved matters

• 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