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

1. 24 Jun 2026

   Received by Gwynedd

2. 6 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 19 August 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

The published feed does not show a live status for this application, which usually means the council register holds more recent detail than the copy PlanIndex receives.

The council portal linked on this page carries the authoritative version, including the documents, any consultation deadline and the decision once made. PlanIndex refreshes its copy of the register on a daily cycle.

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

• Tŷ Gwyn Ffordd Cwmorthin, Tanygrisiau, Blaenau Ffestiniog, Gwynedd, LL41 3SN

  C26/0051/03/DT Submitted 30 Jan 2026 0m away

  Estyniad cefn arfaethedig ac addasiadau cysylltiedig. Proposed rear extension and associated alterations

  Refused Householder Extension
  Domestic

• Land To The Rear Of Cambrian Terrace, CAMBRIAN TERRACE Glanypwll Road, Tanygrisiau, Gwynedd, LL41 3RT

  C26/0169/03/LL Submitted 12 Mar 2026 389m away

  Decision due ~7 May

  Cais o osod paneli solar ar ben cynhwysydd llongau presennol sy’n cael ei ddefnyddio fel gweithdy ynghyd a gosod pwmp gwresogi aer ar y cefn / Application to install an array of solar panels on top of an existing shipping container that is used as a workshop together with an air source heat pump to the rear.

  Status unknown Full applications

• FOUNDRY HOUSE, Tanygrisiau, Blaenau Ffestiniog, Gwynedd, LL41 3TW

  C25/0681/03/DT Submitted 22 Sep 2025 427m away

  Estyniad cefn deulawr arfaethedig. Proposed rear two storey extension.

  Refused Householder Extension
  Domestic

• 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
• C26/0351/44/DT Status unknown

  71 Pensyflog, Porthmadog, Gwynedd, LL49 9LD

  Dymchwel sied bresennol a chodi estyniad deulawr i gefn yr eiddo. Demolition of existing shed and erection of two storey extension to the rear of the property.

  12 Jun 2026 Householder