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Planning applications in LL55

We hold 637 planning applications for the LL55 postcode area, 78 of them submitted in the past year. 93% of decided applications here were approved. A decision typically takes 50 days. The area is covered by Gwynedd, Snowdonia.

637
applications held
78
in the past year
93%
approved
50 days
median decision

Councils covering LL55

Gwynedd (604)Snowdonia (33)

Recent applications in LL55

Pending
Full
21 Sept 2026NP2/11/L524B
Dolafon, Nant Gwynant. LL55 4NLSnowdonia

Relocation of vehicular access

Pending
Non Material Amendments
17 Sept 2026NP2/11/188C
Tan y Dderwen, Beddgelert. LL55 4UYSnowdonia

Non-material Amendment to Planning Permission NP2/11/188B

Pending
Discharge of Conditions
17 Sept 2026NP2/11/634M
Railway Station, Beddgelert. LL55 4YWSnowdonia

Discharge Conditions 3,4,5,6,8 & 9 attached to Planning Permission NP2/11/634K

Pending
Listed Building Consent
2 Sept 2026NP2/11/LB219D
7 Sygun Terrace, Beddgelert. LL55 4NASnowdonia

Listed Building Consent for replacement window

Pending
Small
Advertisement Consent (HY)
1 Jul 2026C26/0391/14/HY
Coral, 10 Pool Street, Caernarfon, Gwynedd, LL55 2ABGwynedd

Gosod 2 flwch goleuo wed'i goleuo yn fewnol Installation of 2 no internally illuminated lightboxes

Pending
Approval of Details Reserved by Condition
16 Jun 2026C26/0356/19/RA
Cyngor Gwynedd, BONTNEWYDD PRIMARY SCHOOL, Bontnewydd, Caernarfon, Gwynedd, LL55 2UFGwynedd

Cais ar gyfer rhyddhau amodau (4), (13) ac (16) o ganiatâd cynllunio C24/1050/19/LL sy'n ymwneud a (4) darparu rhaglen o waith Archeolegol, (13) cyflwyno Cynllun Rheoli Amgylcheddol Adeiladu (CEMP), (16) cyflwyno arolwg lleoliad asedau, cynllun manwl ac os angen cynllun ddargyfeirio asedau Dwr Cymru / Application to discharge conditions (4), (13) and (16) of planning permission C24/1050/19/LL in relation to (4) providing a specification for a programme of archaeological work, (13) submission of Construction Environmental Management Plan (CEMP), (16) submission of asset location survey, detailed plan and if necessary a scheme to divert the Welsh Water assets.

Pending
Householder Planning
15 Jun 2026C26/0354/14/DT
BRYN MÔR England Road North, Caernarfon, Gwynedd, LL55 1HSGwynedd

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.

Pending
Approval of Details Reserved by Condition
12 Jun 2026C26/0353/23/RA
Llys Derwen Camping & Caravan Site, Caravan Park, LLYS DERWEN Ffordd Minffordd, Llanrug, Caernarfon, Gwynedd, LL55 4RDGwynedd

Rhyddhau amod 7 (Cynllun Rheoli Sŵn) ac amod 8 (Strategaeth Awyru ac Acwstig) o ganiatâd cynllunio C25/0932/23/LL. Discharge of condition 7 (Noise Management Plan) and condition 8 (Ventilation & Acoustic Strategy) of planning permission C25/0932/23/LL.

Permitted
Small
Full
10 Jun 2026NP2/11/T356A
T"} Newydd, Beddgelert. LL55 4YWSnowdonia

Replacement windows

Permitted
Small
Full
22 May 2026NP3/15/92D
Cae Gwyn, Nant Peris. LL55 4UHSnowdonia

Shepherd's Hut (Restrospective)

Permitted
Small
Certificate of lawful use (Existing)
22 May 2026NP3/15/LU92E
Cae Gwyn, Nant Peris. LL55 4UHSnowdonia

Certificate of Lawful Use (Existing)

Permitted
Small
Full
22 May 2026NP3/15/92F
Cae Gwyn, Nant Peris. LL55 4UHSnowdonia

Shower / Toilet block

Pending
Removal/Variation of Condition(s)
18 May 2026C26/0303/18/AC
Welsh Slate Museum, GILFACH DDU, Llanberis, Caernarfon, Gwynedd, LL55 4TYGwynedd

Diwygio amod rhif 2 (unol a'r cynlluniau) ar caniatad C24/0977/18/LL i godi uchder to y caffi, gwaith tirlunio a materion draenio / Amend condition number 2 (as per plans) on consent C24/0977/18/LL to increase roof height of cafe, landscaping and drainage matters

Pending
Full Planning
7 May 2026C26/0290/23/LL
FFERM GREUOR, Llanrug, Caernarfon, Gwynedd, LL55 2AQGwynedd

Cais llawn i adeiladu lagoon slyri newydd ynghyd a sied amaethyddol newydd. Full application to construct a new slurry lagoon together with a new agricultural shed

Pending
Householder Planning
27 Apr 2026C26/0263/14/DT
16 Cae Mur, Caernarfon, Gwynedd, LL55 1DAGwynedd

Estyniad deulawr i ochr yr annedd a chreu tri lle parcio ceir o flaen yr annedd. Two storey extension to the side of dwelling and creation of three car parking spaces at front of dwelling.

Permitted
Small
Removal of a condition
24 Apr 2026NP2/11/52T
Pen-y-Pass Car Park, Nant Gwynant. LL55 4NUSnowdonia

Removal of Condition 3 attached to Planning Permission NP2/11/52L

Permitted
Small
Full
21 Apr 2026NP2/11/188B
Tan y Dderwen, Beddgelert. LL55 4UYSnowdonia

Extension

Permitted
Small
Full
17 Apr 2026NP2/11/L9D
Glan Gwynant, Nant Gwynant. LL55 4NWSnowdonia

Change of use from guesthouse to dwelling (Use Class C3) and rebuilding works

Pending
Full Planning
16 Apr 2026C26/0238/15/LL
Land Adjacent To 10 Warden Street, Llanberis, LL55 4HPGwynedd

Codi ty annedd newydd. Erection of new dwelling

Pending
Full Planning
7 Apr 2026C26/0220/14/LL
Parc Coed Helen Aberforeshore, Caernarfon, Gwynedd,Gwynedd

Lleoli un cynhwysydd i ddarparu storfa ddiogel ar gyfer offer rhwyfo a chychod clwb sy'n gysylltiedig â Chlwb Rhwyfo Aberseiont. Bydd y cynhwysydd wedi'i orffen mewn lliw gwyrdd tywyll. The siting of a single shipping container to provide secure storage for rowing equipment and club boats associated with Clwb Rhwyfo Aberseiont. The container will be finished in a dark green colour.

Pending
Approval of Details Reserved by Condition
31 Mar 2026C26/0205/23/RA
Tir Oddi Ar Ffordd Glanffynnon, Llanrug, LL55 4PTGwynedd

Rhyddhau amodau 4 (gorffeniad allanol), 9 (llechi), 12 ( Cynllun Rheoli’r Amgylchedd Adeiladu) a 18 ( manylion unedau pympiau ffynhonnell aer) o ganiatâd cynllunio C25/0651/23/LL. Discharge of conditions 4 (external finish), 9 (slates), 12 ( Construction Environmental Management Plan ) and 18 (details of air source pump units) of planning permission C25/0651/23/LL.

Pending
Full Planning
27 Mar 2026C26/0197/23/LL
Land North Of Plastirion Ter (a4086), Llanrug, LL55 4AWGwynedd

Codi Siop Gyfleustra Unllawr (Co-op) gyda Pharcio a Mynediad Cysylltiedig. Erection of a Single Storey Convenience Store (Co-op) with Associated Parking and Access.

Pending
Householder Planning
26 Mar 2026C26/0191/26/DT
Lloches, Waunfawr, Caernarfon, Gwynedd, LL55 4YSGwynedd

Estyniad cefn arfaethedig Proposed rear extension

Refused
Non-Material Amendment
17 Mar 2026C26/0185/23/DA
AFONWY COTTAGE, Pontrug, Caernarfon, Gwynedd, LL55 2SWGwynedd

Diwygiad ansylweddol i ganiatâd cynllunio C21/1061/23/LL er mwyn newid lleoliad y modurdy dwbl. Non-material amendment to planning permission C21/1061/23/LL in order to change the location of the double garage.

Pending
Approval of Details Reserved by Condition
16 Mar 2026C26/0174/23/RA
Tir Oddi Ar Ffordd Glanffynnon, Llanrug, LL55 4PTGwynedd

Rhyddhau amod 2 ( cyflwyno cynllun ar gyfer datblygu tai fforddiadwy) o hawl cynllunio C25/0651/23/LL. Release of condition 2 ( scheme for the provision of affordable housing) from planning permission C25/0651/23/LL.

Pending
Small
Prior Telecommunications Notice
13 Mar 2026C26/0172/14/HT
Manweb District Tower, St Helens Road, Caernarfon, LL55 2YBGwynedd

Gosod 1 generadur pŵer a datblygiad ategol iddo Installation of 1 no. power generator and ancillary development thereto

Permitted
Approval of Reserved Matters
13 Mar 2026C26/0173/26/RA
FFERM CROSS Ffordd Y Waunfawr, Waunfawr, Caernarfon, Gwynedd, LL55 4YSGwynedd

Cais i rhyddhau amodau 13 (Cynllun Amgylcheddol Rheoli Adeiladwaith), 14 (Cynllun Gwelliannau Bioamrywiaeth a Rheoli Cynefin) a 15 (Asesiad Risg Diogelwch-Bio) ar gais cynllunio C21/0175/26/LL. Release of conditions 13 (Construction Management Environmental Plan), 14 (Biodiversity Enhancement and Habitat Management Plan) and 15 (Bio-Security Risk Assessment) on planning application C21/0175/26/LL.

Pending
Approval of Details Reserved by Condition
13 Mar 2026C26/0170/23/RA
Tir Oddi Ar Ffordd Glanffynnon, Llanrug, LL55 4PTGwynedd

Rhyddhau amod 7 ( cynllun ymchwilio archeoleg ysgrifenedig) ar ganiatad Cynllunio C25/0651/23/LL. Discharge condition 7 (written scheme of investigation for archaeological work) on Planning permission C25/0651/23/LL

Pending
Householder Planning
12 Mar 2026C26/0164/23/DT
PLAS TIRION LODGE, Pontrug, Caernarfon, Gwynedd, LL55 2SWGwynedd

Estyniadau, newidiadau a gwaith cysylltiedig arfaethedig Proposed extensions, alterations and associated works

Pending
Householder Planning
9 Mar 2026C26/0158/14/DT
Bryn Gwyn, 24 St David's Road, Caernarfon, Gwynedd, LL55 1BHGwynedd

Estyniad cefn arfaethedig a newidiadau mewnol Proposed rear extension and internal alterations

Pending
Listed Building Consent
3 Mar 2026C26/0143/14/CR
Albert Inn, 10 Segontium Terrace, Caernarfon, Gwynedd, LL55 2PNGwynedd

Addasiadau mewnol i drosi cyn dy tafarn yn dy annedd / Internal alterations to convert the former public house into dwelling house

Pending
Approval of Details Reserved by Condition
3 Mar 2026C26/0140/15/RA
GLYN RHONWY STORE Glyn Rhonwy Estate, Llanberis, Gwynedd, LL55 4ELGwynedd

Cais i ryddhau yn rhannol gofyniad 4 ‘'Cynllun cyflwyno cam wrth gam’, 6 (‘c’ ac ‘i’) ‘Cod Ymarfer Adeiladu’ a 21 ‘Strategaeth cyfadferiad a gwellhad archeolegol’ o Orchymyn Caniatâd Datblygu Cyfeirnod ‘SI 2021 Rhif 1284 (W.323)’ ar gyfer datblygu cyfleuster storio pwmpio / Application for partial discharge of requirement 4 ‘Phasing plan’, 6 (‘c’ & ‘i’) ‘Code of Construction Practice’ and 21 ‘Archaeological Compensation and Enhancement Strategy’ of Development Consent Order Reference ‘SI 2021 No. 1284 (W.323)’ for the development of a pumped storage facility.

Pending
Full Planning
2 Mar 2026C26/0139/18/LL
Welsh Slate Museum, Gilfach Ddu, Llanberis, Caernarfon, Gwynedd, LL55 4TYGwynedd

Gosod isbwerdy drydan a chyfansoddyn storio sgip gwastraff ynghyd â’r gwaith cysylltiedig / Installation of an electric sub-station and waste skip store compound and associated works

Pending
Householder Planning
23 Feb 2026C26/0113/23/DT
1, Fron Oleu, Ceunant, Caernarfon, Gwynedd, LL55 4RTGwynedd

Estyniad deulawr i ochr yr eiddo. Erection of a two-storey extension to the side of the property.

Pending
Prior Notification of Proposed Demolition
23 Feb 2026C26/0115/14/HD
National Tyre & Autocare Bank Quay, Caernarfon, Gwynedd, LL55 1SUGwynedd

Hysbysiad ymlaen llaw i ddymchwel modurdy. Prior notification for the demolition of garage.

Pending
Full Planning
16 Feb 2026C26/0104/18/LL
Rhyd Y Galen Caravan Park Ffordd Bethel, Bethel, Caernarfon, Gwynedd, LL55 1ULGwynedd

Cais Cynllunio llawn ar gyfer gosod 22 o safleoedd carafanau teithiol, cwt bugail fel ardal ymolchi ynghyd â gwelliannau tirwedd ac amgylcheddol ym Mharc Carafanau a Gwersylla Rhyd y Galen. Full planning application for the location of 22 Touring Unit pitches, Shepherd’s Hut washing facility, together with landscape and environmental improvements at Rhyd y Galen Caravan and Camping Park.

Pending
Full Planning
13 Feb 2026C26/0105/14/LL
Modurdai Lôn Eilian, Caernarfon, LL55 2DSGwynedd

Dymchwel modurdai presennol a chodi pedair uned fforddiadwy, ynghyd â gwaith cysylltiedig. Demolition of existing garages and erection of four affordable units, along with associated works.

Pending
Removal/Variation of Condition(s)
12 Feb 2026C26/0089/14/AC
22 Stryd Bangor, Caernarfon, LL55 1ATGwynedd

Diwygio amod rhif 2 (unol a'r cynlluniau) ar gais rhif C19/0879/14/CR i ddiwygio'r gosodiad mewnol / Amend condition 2 (as per plans) on consent no C19/0879/14/CR to vary internal layout

Pending
Non-Material Amendment
12 Feb 2026C26/0090/14/DA
22 Stryd Bangor, Caernarfon, LL55 1ATGwynedd

Diwygiad ansylweddol i gais C19/0880/14/LL i newid y gosodiad mewnol / Non-material amendment to consent C19/0880/14/LL to amend internal layout

Pending
Approval of Details Reserved by Condition
12 Feb 2026C26/0089/14/RA
22 Stryd Bangor, Caernarfon, LL55 1ATGwynedd

Diwygio amod rhif 2 (unol a'r cynlluniau) ar gais rhif C19/0879/14/CR i ddiwygio'r gosodiad mewnol / Amend condition 2 (as per plans) on consent no C19/0879/14/CR to vary internal layout

Pending
Householder Planning
12 Feb 2026C26/0093/18/DT
24 Y Ddôl, Bethel, Caernarfon, Gwynedd, LL55 1REGwynedd

Dymchwel darn unllawr cefn ac ochor presennol yr eiddo a chodi estyniad deulawr i ochr yr eiddo ac estyniad unllawr newydd i gefn yr eiddo (addasiadau i gynllun a gymeradwywyd yn flaenorol) Demolish the existing one-storey rear and side part of the property and erect a two-storey side extension and a new single-storey rear extension (Alterations to Previously Approved Scheme).

Pending
Approval of Details Reserved by Condition
11 Feb 2026C26/0084/18/RA
National Grid Co Plc, Llanddeiniolen, Caernarfon, Gwynedd, LL55 3ANGwynedd

Cais i ryddhau amod 8 o ganiatâd cynllunio gwreiddiol C25/0554/18/LL i gyflwyno cynllun ysgrifenedig ar gyfer gwaith archeolegol cyn i unrhyw ddatblygiad ddigwydd. Discharge of condition 8 of original planning permission C25/0554/18/LL to submit a written scheme of investigation for archaeological work before any development takes place.

Pending
Approval of Details Reserved by Condition
11 Feb 2026C26/0086/18/RA
Ebenezer Chapel High Street, Deiniolen, Caernarfon, Gwynedd, LL55 3HUGwynedd

Cais er mwyn rhyddhau amod 05, 08, 09, 10, 12, 13 ar gais cynllunio gwreiddiol C19/1194/18/LL. Application to discharge conditions 05, 08, 09, 10, 12 and 13 on planning application C19/1194/18/LL.

Pending
Householder Planning
4 Feb 2026C26/0061/14/DT
Môr Awelon Bangor Road, Caernarfon, Gwynedd, LL55 1LRGwynedd

Dymchwel yr ystafell haul presennol a chodi estyniad newydd ynghyd â newidiadau i'r to. Demolition of existing conservatory and construction of a new extension along with alterations to the roof.

Pending
Householder Planning
2 Feb 2026C26/0056/14/DT
9 Maes Hyfryd, Caernarfon, Gwynedd, LL55 1DNGwynedd

Adeiladu estyniad cefn to fflat a phorth blaen. Erection of a flat roofed rear extension & front porch.

Pending
Approval of Details Reserved by Condition
2 Feb 2026C26/0062/18/RA
Padarn Country Park, Llanberis, Caernarfon, Gwynedd, LL55 4TYGwynedd

Rhyddhau amod rhif 4 ar ganiatad rhif C24/0309/18/LL er cytuno gorffeniad allanol yr estyniad / Discharge condition no 4 on consent ref C24/0309/18/LL to agree external finish of extension

Pending
Full Planning
27 Jan 2026C26/0043/18/LL
Snowdon View Caravan Park, Brynrefail, Caernarfon, Gwynedd, LL55 3PDGwynedd

Y bwriad i leoli 36 o garafanau gwyliau sefydlog yn lle 75 o garafanau teithiol ar ochr ogleddol Snowdon View, ynghyd â gwelliannau amgylcheddol. The proposed siting of 36 static holiday caravans in lieu of 75 touring caravans on the northern element of Snowdon View, together with environmental improvements

Pending
Listed Building Consent
23 Jan 2026C26/0036/20/CR
Cyngor Chwaraeon Cymru, Plas Menai National Watersports Centre, Llanfair Is Gaer, Caernarfon, Gwynedd, LL55 1TSGwynedd

Addasiadau mewnol a newidiadau allanol i'r offer peirannyddol / Internal alterations and external changes to the mechanical system

Conditions
Medium
Full
23 Jan 2026NP2/11/715L
Llyn Gwynant Campsite, Nant Gwynant. LL55 4NWSnowdonia

Construction of a lean-to extension to existing energy shed and retrospective consent for previously constructed wood chip store

Pending
Removal/Variation of Condition(s)
20 Jan 2026C26/0029/15/AC
7 Rock Terrace, Llanberis, Caernarfon, Gwynedd, LL55 4LAGwynedd

Cais i ddiwygio amod 2 (Cynlluniau a gymeradwywyd) o ganiatâd C25/0424/15/DT, ar gyfer estyniad cefn llawr cyntaf, er mwyn caniatáu diwygiad i’r dyluniad i godi uchder to’r estyniad i 5.11m. Application to amend condition 2 (Approved plans) of planning permission C25/0424/15/DT, for a First floor rear extension, to allow an amendment to the design to raise the roof hight of the extension to 5.11m.