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Change use of land to residential curtilage. Demolition of existing single storey garage and construction of two storey extension, and conversion of barn into a swim spa, changing and bathroom facilities, and storage space for disabled user. Construction of a single storey link extension between the house and barn

Garth Lwyd, Rhosygwaliau. LL23 7PL

All consultations completeReference: NP5/70/123DEryri National Park

Last published check: 3 Oct 2026, 06:45. Check the council record for more recent changes.

Application location

Garth Lwyd, Rhosygwaliau. LL23 7PL

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Application summary

Status
All consultations complete
Application type
Full
Received
24 Apr 2026
Validated
24 Apr 2026
Determination deadline
18 Jun 2026
Local authority
Eryri National Park

Application overview

Change use of land to residential curtilage. Demolition of existing single storey garage and construction of two storey extension, and conversion of barn into a swim spa, changing and bathroom facilities, and storage space for disabled user. Construction of a single storey link extension between the house and barn

Proposal details

Reference
NP5/70/123D
Alternative references
PP-14210089
Development type
Householder
Ward
Llandderfel ED
Parish
Llangywer
Agent
Mr. John Kelshaw
UPRN
10070369053

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Documents 40 of 40

DocumentPublishedAction
S - Cyngor Cymuned / Community Council4 Sept 2025View
S - Ecoleg / Ecology 27.08.259 Sept 2025View
S - CNC / NRW 08.12.258 Dec 2025View
S - Dwr Cymru / Welsh Water 11.12.2511 Dec 2025View
S - YGC 15.12.2515 Dec 2025View
S - CNC / NRW 21.08.259 Feb 2026View
S - YGC 26.08.259 Feb 2026View
S - YGC 06.02.269 Feb 2026View
S - Dwr Cymru / Welsh Water 10.02.2611 Feb 2026View
S - CNC / NRW 17.02.2618 Feb 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
Diwygiedig / Amended 27.04.202628 Apr 2026View
S - Heneb15 May 2026View
Diwygiedig / Amended 16.05.2621 May 2026View
S - CNC / NRW 27.05.2627 May 2026View
Rh.P4 Jun 2026View

Documents open on the council website. Browse council documents if a link has changed.

Application timeline

Council milestones and published deadlines. A deadline passing does not confirm a decision.

  1. Site notice date

    Published milestoneCouncil source

  2. Site notice end date

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

  3. Consultation expiry date

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

  4. Statutory expiry date

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

  5. Application date

    Published milestoneCouncil source

  6. Received date

    Published milestoneCouncil source

  7. Registration date

    Published milestoneCouncil source

  8. Valid date

    Published milestoneCouncil source

  9. Dispatch date

    Published milestoneCouncil source

  10. Decision date

    Published milestoneCouncil source

  11. Decision due date

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

  12. Decision expiry date

    Published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

Decision & conditions

Permitted with conditions
Planning conditions
  1. The development hereby permitted shall be commenced before the expiration of FIVE years from the date of this decision.
  2. Rhaid dechrau'r datblygiad a ganiateir yma cyn pen PUM mlynedd o ddyddiad y penderfyniad hwn.
  3. The development hereby permitted shall be carried out in accordance with the following approved plans: Location Plan GAR-JKA-XX-DR-A-PL00 (received 16.05.26) Topographical Survey S26541-2DT Existing Site Plan GAR-JKA-X-X-DR-A-PL01 Existing Ground Floor Plans – Planning GAR-JKA-X-X-DR-A-PL02 Existing First Floor Plans – Planning GAR-JKA-X-X-DR-A-PL03 Existing Roof Plan – Planning GAR-JKA-X-X-DR-A-PL04 Existing Elevations – House – Planning GAR-JKA-X-X-DR-A-PL05 Existing Elevations – Outbuilding – Planning GAR-JKA-X-X-DR-A-PL06 Existing Context Elevations – House and Outbuilding – Planning GAR-JKA-X-X-DR-A-PL07 Proposed Site Plan – Planning GAR-JKA-X-X-DR-A-PL08 P2 Proposed Ground Floor Plan – Planning GAR-JKA-X-X-DR-A-PL09 P4 Proposed First Floor Plans – Planning GAR-JKA-X-X-DR-A-PL10 P2 Proposed Roof Plans – Planning GAR-JKA-X-X-DR-A-PL11 P3 Proposed Elevations – House – Sheet 1 – Planning GAR-JKA-X-X-DR-A-PL12 Proposed Elevations – House – Sheet 1 – Planning GAR-JKA-X-X-DR-A-PL13 P1 Proposed Elevations – Outbuilding – Sheet 1 – Planning GAR-JKA-X-X-DR-A-PL14 P1 Proposed Elevations – Outbuilding – Sheet 2 – Planning GAR-JKA-X-X-DR-A-PL15 P1 Proposed Link and Context Elevations – Planning GAR-JKA-X-X-DR-A-PL16 P1 Existing Ground and Roof Plans showing Demolition 260401/D01 Proposed Ground and Roof Plans 260401/S01 LK Consult Drainage Strategy (30.01.26) Inspection & Assessment in Relation to Bats & Breeding Birds (May 2025) Tyrer Ecological Consultants Ltd Dusk Survey Results (July 2025) Tyrer Ecological Consultants Ltd
  4. Mae'n rhaid cyflawni'r datblygiad a ganiateir yma yn unol â'r cynlluniau a gymeradwywyd isod: Location Plan GAR-JKA-XX-DR-A-PL00 (received 16.05.26) Topographical Survey S26541-2DT Existing Site Plan GAR-JKA-X-X-DR-A-PL01 Existing Ground Floor Plans – Planning GAR-JKA-X-X-DR-A-PL02 Existing First Floor Plans – Planning GAR-JKA-X-X-DR-A-PL03 Existing Roof Plan – Planning GAR-JKA-X-X-DR-A-PL04 Existing Elevations – House – Planning GAR-JKA-X-X-DR-A-PL05 Existing Elevations – Outbuilding – Planning GAR-JKA-X-X-DR-A-PL06 Existing Context Elevations – House and Outbuilding – Planning GAR-JKA-X-X-DR-A-PL07 Proposed Site Plan – Planning GAR-JKA-X-X-DR-A-PL08 P2 Proposed Ground Floor Plan – Planning GAR-JKA-X-X-DR-A-PL09 P4 Proposed First Floor Plans – Planning GAR-JKA-X-X-DR-A-PL10 P2 Proposed Roof Plans – Planning GAR-JKA-X-X-DR-A-PL11 P3 Proposed Elevations – House – Sheet 1 – Planning GAR-JKA-X-X-DR-A-PL12 Proposed Elevations – House – Sheet 1 – Planning GAR-JKA-X-X-DR-A-PL13 P1 Proposed Elevations – Outbuilding – Sheet 1 – Planning GAR-JKA-X-X-DR-A-PL14 P1 Proposed Elevations – Outbuilding – Sheet 2 – Planning GAR-JKA-X-X-DR-A-PL15 P1 Proposed Link and Context Elevations – Planning GAR-JKA-X-X-DR-A-PL16 P1 Existing Ground and Roof Plans showing Demolition 260401/D01 Proposed Ground and Roof Plans 260401/S01 LK Consult Drainage Strategy (30.01.26) Inspection & Assessment in Relation to Bats & Breeding Birds (May 2025) Tyrer Ecological Consultants Ltd Dusk Survey Results (July 2025) Tyrer Ecological Consultants Ltd
  5. Before the first use of the development hereby approved, the biodiversity enhancements shown on the plans hereby approved shall be installed. The biodiversity enhancement shall thereafter be maintained in accordance with the manufacturer’s instructions and shall be retained for the lifetime of the development; any replacements shall be of an equivalent specification.
  6. The roof of the development shall be covered in natural Welsh mineral slate or slates of the equivalent colour, texture and weathering characteristics as the slates on the main roof of the dwelling house and maintained thereafter.
  7. The development hereby approved shall not commence until a photographic survey of the buildings has been undertaken in accordance with the Heneb Requirements for General Photographic Surveys of Buildings, and the survey submitted to and approved in writing by the Local Planning Authority by way of a formal application.
  8. To Comply with Section 91 (as amended) of the Town and Country Planning Act 1990.
  9. I gydymffurfio a Rhan 91 (fel y diwygiwyd) o'r Ddeddf Gynllunio Gwlad a Thref 1990.
  10. To define the permission and for the avoidance of doubt.
  11. Er mwyn diffinio’r caniatâd ac i osgoi amheuaeth.
  12. To provide biodiversity enhancements in accordance with Strategic Policy D of the adopted Eryri Local Development Plan and Planning Policy Wales.
  13. I ddarparu gwelliannau bioamrywiaeth yn unol â Pholisi Strategol D o Gynllun Datblygu Lleol Eryri a Pholisi Cynllunio Cymru a fabwysiadwyd.
  14. To ensure a satisfactory standard of appearance of the development and the use of appropriate local building materials, in accordance with Eryri Local Development Plan Policies 2016-2031 and in particular policies 1, 6 and A.
  15. Er mwyn sicrhau fod y datblygiad yn edrych yn foddhaol ac y defnyddir deunyddiau adeiladu lleol priodol, yn unol â Pholisïau Cynllun Datblygu Lleol Eryri 2016-2031 ac yn enwedig polisïau 1, 6 ag A.
  16. To ensure that an adequate record is made of all structures affected by the proposals and that the record is held within the public domain for future reference and research in accordance with Eryri Local Development Plan Policies and in particular policies 1, 6 and A.
  17. Informatives 1. Planning permission has been granted based on the building being converted in accordance with the works specified in the submitted structural survey and plans. Should any external or internal wall be demolished, which was not approved in the submitted details, you are advised to contact the Development Management Section immediately, as this may invalidate the planning permission. 2. A protected species licence from Natural Resources Wales must be obtained before the commencement of the development hereby approved. 3. Notwithstanding the LK Consult Drainage Strategy (30.01.26) as of January 7th, 2019, all new developments of more than 1 property or where the construction area with drainage implications is 100m2 or more, will require sustainable drainage to manage on-site surface water. Surface water drainage systems must be designed and built in accordance with mandatory standards for sustainable drainage published by Welsh Ministers. These systems must be approved by Gwynedd Council acting in its role as a SuDS Approving Body (SAB), before construction work begins. The SAB will have a duty to adopt compliant systems which serve more than one property so long as it is built and function in accordance with the approved proposals, including any SAB conditions of approval. Appendix 1 - EUROPEAN PROTECTED SPECIES: The ‘three tests’ Test 1: Is the development ‘in the interests of public health and public safety, or for other imperative reasons of overriding public interest, including those of a social or economic nature and beneficial consequences of primary importance for the environment’? The scheme involves converting a former barn. Though there is a loss of historic fabric as a result of the development, there is public interest in retaining this historic building. Retaining the building in viable use is often the best way to secure its long-term conservation. Conservation has wider social, cultural, economic and environmental benefits, including preserving non-renewable resources for future generations to enjoy, making the most efficient use of existing fabric to reduce the consumption of building materials, energy and land through new-build, making a positive contribution to local character and sense of place, and contributing to our knowledge and understanding of our past. Test 2: Is there no satisfactory alternative?’ The most likely alternative would be for the barn to remain unconverted. However, this is more likely to result in its further deterioration, as it is now largely unsuitable for modern agricultural practices. This may ultimately diminish its value as bat roosting habitat. Furthermore, it would not be an efficient use of the existing resource and downplays the role of economic and social progress in helping to achieve sustainable development. Another option might be conversion for other uses. However, there is no evidence that this would be feasible or indeed any less disruptive to roosting bats. Test 3: Is the proposed activity ‘not detrimental to the maintenance of the populations of the species concerned at a favourable conservation status in their natural range’? The PEA identified that various bat species were present. NRW & the Eryri Ecologist raise no objections, subject to mitigation measures in the supporting ecological information being followed. A bat licence will be required from NRW, and an informative document has been attached on this matter. Based on these considerations, it is not considered that the development will be detrimental to the maintenance of the populations at a favourable conservation status within their natural range, subject to the conditions recommended.
  18. Er mwyn sicrhau bod cofnod digonol yn cael ei wneud o'r holl strwythurau yr effeithir arnynt gan y cynigion a bod y cofnod yn cael ei gadw o fewn y parth cyhoeddus ar gyfer cyfeirio ato ac ymchwil yn y dyfodol yn unol â Pholisïau Cynllun Datblygu Lleol Eryri ac yn benodol polisïau 1, 6 ac A.
  19. Nodiadau Cynghori : 1. Mae caniatâd cynllunio wedi cael ei gymeradwyo ar sail bod yr adeilad yn cael ei drosi yn unol a’r gwaith rhestrir yn yr arolwg strwythurol a cynlluniau gyflwynwyd. Os oes wal allanol neu mewnol yn cael ei chwalu, a doedd hyn ddim wedi cael ei gymeradwyo yn y manylion gymeradwywyd yr ydych yn cael eich cynghori i gysylltu a’r Adain Rheoli Datblygu yn syth oherwydd y gallai dirymu y caniatâd cynllunio. 2. Rhaid cael trwydded rhywogaeth warchodedig gan Cyfoeth Naturiol Cymru cyn dechrau'r datblygiad a gymeradwyir drwy hyn. 3. Er gwaethaf Strategaeth Draenio LK Consult (30.01.26) o 7 Ionawr 2019 ymlaen, bydd angen draenio cynaliadwy ar bob datblygiad newydd o fwy nag 1 eiddo neu lle mae'r ardal adeiladu gydag oblygiadau draenio yn 100m2 neu fwy, i reoli d"{r wyneb ar y safle. Rhaid dylunio ac adeiladu systemau draenio d"{r wyneb yn unol â safonau gorfodol ar gyfer draenio cynaliadwy a gyhoeddwyd gan Weinidogion Cymru. Rhaid i'r systemau hyn gael eu cymeradwyo gan Gyngor Gwynedd yn gweithredu yn ei rôl fel Corff Cymeradwyo SuDS (SAB), cyn i'r gwaith adeiladu ddechrau. Bydd gan y SAB ddyletswydd i fabwysiadu systemau cydymffurfiol sy'n gwasanaethu mwy nag un eiddo cyn belled â'i fod wedi'i adeiladu ac yn gweithredu yn unol â'r cynigion cymeradwy, gan gynnwys unrhyw amodau cymeradwyo SAB. Atodiad 1 - RHYWOGAETHAU GWARCHODEDIG EWROPEAIDD: Y ‘tri phrawf’ A yw'r datblygiad 'er budd iechyd y cyhoedd a diogelwch y cyhoedd, neu am resymau hanfodol eraill o fudd cyhoeddus tra phwysig, gan gynnwys rhai o natur gymdeithasol neu economaidd a chanlyniadau buddiol o bwys sylfaenol i'r amgylchedd'? Mae'r cynllun yn cynnwys trosi hen ysgubor. Er bod colled o ffabrig hanesyddol o ganlyniad i'r datblygiad, mae diddordeb cyhoeddus mewn cadw'r adeilad hanesyddol hwn. Yn aml, cadw'r adeilad mewn defnydd hyfyw yw'r ffordd orau o sicrhau ei gadwraeth hirdymor. Mae gan gadwraeth fuddion cymdeithasol, diwylliannol, economaidd ac amgylcheddol ehangach, gan gynnwys cadw adnoddau anadnewyddadwy i genedlaethau'r dyfodol eu mwynhau, gwneud y defnydd mwyaf effeithlon o'r ffabrig presennol i leihau'r defnydd o ddeunyddiau adeiladu, ynni a thir trwy adeiladu newydd, gwneud cyfraniad cadarnhaol at gymeriad lleol ac ymdeimlad o le, a chyfrannu at ein gwybodaeth a'n dealltwriaeth o'n gorffennol. Prawf 2: A oes dewis arall boddhaol? Y dewis arall mwyaf tebygol fyddai i'r ysgubor aros heb ei throsi. Fodd bynnag, mae hyn yn fwy tebygol o arwain at ei ddirywiad pellach, gan ei fod bellach yn anaddas i raddau helaeth ar gyfer arferion amaethyddol modern. Gall hyn yn y pen draw leihau ei werth fel cynefin clwydo ystlumod. Ar ben hynny, ni fyddai'n ddefnydd effeithlon o'r adnodd presennol ac mae'n lleihau rôl cynnydd economaidd a chymdeithasol wrth helpu i gyflawni datblygiad cynaliadwy. Dewis arall fyddai trosi at ddefnyddiadau eraill. Fodd bynnag, nid oes unrhyw dystiolaeth y byddai hyn yn ymarferol neu'n wir yn llai aflonyddgar i ystlumod sy'n clwydo. Prawf 3: A yw'r gweithgaredd arfaethedig 'ddim yn niweidiol i gynnal poblogaethau'r rhywogaeth dan sylw ar statws cadwraeth ffafriol yn eu hamrediad naturiol'? Nododd yr Asesiad Ecolegol Cyfoeth Naturiol fod amryw o rywogaethau ystlumod yn bresennol. Nid yw Cyfoeth Naturiol Cymru na Ecolegydd Eryri yn codi unrhyw wrthwynebiadau, yn amodol ar ddilyn mesurau lliniaru yn y wybodaeth ecolegol ategol. Bydd angen trwydded ystlumod gan Cyfoeth Naturiol Cymru, ac mae dogfen wybodaeth wedi'i hatodi ar y mater hwn. Yn seiliedig ar yr ystyriaethau hyn, ni ystyrir y bydd y datblygiad yn niweidiol i gynnal y poblogaethau ar statws cadwraeth ffafriol o fewn eu hamrediad naturiol, yn amodol ar yr amodau a argymhellir.
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