Mostyn Arms , Ffordd Cynan/St Georges Road, Porthaethwy/Menai Bridge.

This site has had 4 applications since 2023: 1 approved, 2 refused.

• FPL/2025/126 Withdrawn

  Mostyn Arms , Ffordd Cynan/St Georges Road , Porthaethwy/Menai Bridge

  Cais llawn ar gyfer addasu ac ehangu'r modurdai presennol i ddarparu fflat preswyl uwchben yn / Full application for the alterations and extensions to the existing garages to provide residential apartment above at

  Decided 1 Apr 2026 Full applications
• FPL/2023/264 Refused

  Mostyn Arms, Ffordd Cynan/St Georges Road, Porthaethwy/Menai Bridge.

  Cais llawn ar gyfer adeilad deulawr yn cynnwys modurdai ar y llawr isaf a fflat preswyl ar y llawr cyntaf yn / Full application for the erection of a two storey building comprising of garages on the ground floor and a first floor residential apartment at

  Decided 5 Mar 2024 Full applications
• FPL/2023/110 Granted

  Mostyn Arms , Ffordd Cynan/St Georges Road, Porthaethwy/Menai Bridge.

  Cais ôl-weithredol ar gyfer codi bloc o garejys ar dir cyfagos yn / Retrospective application for the erection of a block of garages on land adjacent to

  Decided 28 Jun 2023 Amendments

1. 5 Apr 2023

   Received by Isle of Anglesey

2. 14 Apr 2023

   Validated

   Checked as complete and ready for consideration.

3. 15 May 2023

   Decision issued: Anghyfreithlon / Unlawful

4. 19 Aug 2026

   Added to PlanIndex

5. 19 Sep 2026

   Status changed to Closed

   Previously Rejected.

Isle of Anglesey refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• Mostyn Arms, Ffordd Cynan / St George's Road, Porthaethwy / Menai Bridge.

  FPL/2024/316 Submitted 8 Nov 2024 50 yards away

  Cais llawn ar gyfer codi cyfleuster gofal preswyl (Dosbarth Defnydd C2) a uned llety byw cysylltiedig yn / Full application for the erection of a residential care facility (Use Class C2) and associated living accommodation unit at

  Granted Full applications 15 docs

• Mostyn Arms , Ffordd Cynan/St Georges Road , Porthaethwy/Menai Bridge

  FPL/2025/126 Submitted 29 Apr 2025 50 yards away

  Cais llawn ar gyfer addasu ac ehangu'r modurdai presennol i ddarparu fflat preswyl uwchben yn / Full application for the alterations and extensions to the existing garages to provide residential apartment above at

  Withdrawn Full applications Extension 12 docs

• Mostyn Arms, Ffordd Cynan / St George's Road, Porthaethwy / Menai Bridge.

  CAC/2025/1 Submitted 3 Jan 2025 50 yards away

  Caniatad Ardal Cadwraeth ar gyfer dymchwel yr adeilad presennol a codi cyfleuster gofal preswyl (Dosbarth Defnydd C2) a uned llety byw cysylltiedig yn / Conservation Area Consent for the demolition of the existing building and erection of a residential care facility (Use Class C2) and associated living accommodation unit at

  Granted Heritage and listed buildings Demolition 17 docs

• Mostyn Arms, Ffordd Cynan/St Georges Road, Porthaethwy/Menai Bridge.

  FPL/2023/264 Submitted 14 Sep 2023 50 yards away

  Cais llawn ar gyfer adeilad deulawr yn cynnwys modurdai ar y llawr isaf a fflat preswyl ar y llawr cyntaf yn / Full application for the erection of a two storey building comprising of garages on the ground floor and a first floor residential apartment at

  Refused Full applications 11 docs

• Mostyn Arms, Ffordd Cynan / St George's Road, Porthaethwy / Menai Bridge.

  FPL/2023/173 Submitted 30 Jun 2023 50 yards away

  Cais llawn gyfer newid defnydd yr hen dafarndy (Dosbarth Defnydd A3) i fod yn gyfleuster gofal preswyl (Dosbarth Defnydd C2) ynghyd a'i addasu ac ehangu yn / Full application for the change of use of the former public house (Use Class A3) to a residential care facility (Use Class C2) together with alterations and extensions at

  Decided Amendments Extension 19 docs

• Mostyn Arms , Ffordd Cynan/St Georges Road, Porthaethwy/Menai Bridge.

  FPL/2023/110 Submitted 21 Apr 2023 50 yards away

  Cais ôl-weithredol ar gyfer codi bloc o garejys ar dir cyfagos yn / Retrospective application for the erection of a block of garages on land adjacent to

  Granted Amendments 7 docs

• LUE/2025/11 Refused

  Trewan Sands Caravan Park, Bryngwran

  Cais am Dystysgrif Datblygiad Cyfreithlon ar gyfer defnydd presennol o'r tir fel safle tymhorol ar gyfer carafanau teithiol, pebyll, a chartrefi modur ers dros 10 mlynedd yn / Application for a Lawful Development Certificate for the existing use of the land as a seasonal site for touring caravans, tents, and motorhomes for over 10 years at

  Received 13 Feb, published by the council 13 Aug 2026 Lawful development
• LUE/2026/2 Granted

  Tal y Foel Stables, Dwyran.

  Cais am Dystysgrif Cyfreithlondeb ar gyfer lleoli a defnyddio carafan statig fel llety rheolwr/gweithwyr yn / Application for a Certificate of Lawfulness for the siting and use of static caravan as managers/workers accommodation at

  Received 24 Feb, published by the council 6 Aug 2026 Lawful development
• LUE/2025/47 Granted

  Penllain Caravan Park, Tyn y Gongl

  Cais am Dystysgrif Datblygiad Cyfreithlon ar gyfer defnydd presennol o un pod ar gyfer llety gwyliau dros yr haf am 10 mlynedd yn / Application for a Lawful Development Certificate for the existing use of one pod as seasonal holiday let for over 10 years at

  Received 11 Dec, published by the council 6 Aug 2026 Lawful development
• LUE/2026/5 Granted

  Bryn Cwr, Gwalchmai

  Cais am Dystysgrif Cyfreithlondeb o ddatblygiad presennol mewn perthynas â chychwyn gwaith materol ar ganiatâd cynllunio 48C131C (newid amod (17) er mwyn ail-leoli ag ailgyfeiriadu yr uned peirianneg wedi ei ganiatáu o dan gais rhif 48C131B) ar dir i'r gogledd o / Application for a Certificate of Lawfulness of existing development in relation to a material start having been made on planning permission reference 48C131C (variation of condition (17) so as to allow relocation and reorientation of the engineering unit from planning consent 48C131B) on land north of

  Received 6 Mar, published by the council 6 Aug 2026 Lawful development
• LUE/2026/6 Granted

  Little Chef, Gaerwen

  Cais am Dystysgrif Cyfreithlondeb o ddatblygiad presennol mewn perthynas â chychwyn gwaith materol ar ganiatâd cynllunio FPL/2019/124 (codi 5 annedd farchnad agored a 1 annedd fforddiadwy ynghyd a chreu mynedfeydd newydd i gerbydau a gwaith cysylltiedig) ar yr hen safle / Application for a Certificate of Lawfulness of existing development in relation to a material start having been made on planning permission reference FPL/2019/124 (erection of 5 open market dwellings and 1 affordable dwelling together with the creation of new vehicular accesses together with associated development) at the former

  Received 23 Mar, published by the council 6 Aug 2026 Lawful development