Planning Applications in LL55

Planning authorities: Gwynedd Council, Eryri (Snowdonia) National Park

Search current and historic planning applications in the LL55 postcode district across Gwynedd and Snowdonia - 39 in the last 90 days. Filter applications by date, status, development type, or number of homes, view them on the map, or create a free alert for new applications.

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Showing 39 of 39 applications
30 Sept 2026 In Progress C26/0451/15/DT

8 Blaen Y Ddôl, Llanberis, Caernarfon, Gwynedd, LL55 4TL

Codi estyniad llawr cyntaf unllawr gyda tho fflat ar ben y to fflat presennol. Erection of a first-floor flat-roof extension above the existing flat r...

Householder Planning Gwynedd
25 Sept 2026 In Progress C26/0571/18/LL

TYDDYN BERTH, Bethel, Caernarfon, Gwynedd, LL55 3PS

Codi caban addysgu unllawr ffrâm bren, gan gynnwys ardal decing wedi’i orchuddio a ramp mynediad hygyrch, at ddibenion addysg gymunedol, hyfforddiant,...

Full Planning Gwynedd
23 Sept 2026 In Progress C26/0569/14/RA

NATIONAL TYRE & AUTOCARE Bank Quay, Caernarfon, Gwynedd, LL55 1SU

Rhyddhau amod 3 o cais rhybudd o flaen llaw ar gyfer dymchwel modurdy C26/0115/14/HD. Discharge condition 3 of Prior notification for the demolition o...

Approval of Details Reserved by Condition Gwynedd
22 Sept 2026 In Progress C26/0541/14/CR

HEN GWRT Castle Ditch, Caernarfon, Gwynedd, LL55 2AY

Addasiadau mewnol ynghyd a gosod uned gyddwysydd ar y cefn / Internal alterations together with installing a condenser unit to the rear

Listed Building Consent Gwynedd
21 Sept 2026 Decided NP2/11/L524B

Dolafon, Nant Gwynant. LL55 4NL

Relocation of existing vehicular access and dropped kerb to align with relocated carriage gate serving existing dwelling

Full Snowdonia
18 Sept 2026 In Progress C25/0364/14/LL

Tir Ger / Land By Teiars Gwynedd, Ffordd Santes Helen, Caernarfon, Gwynedd, LL55 2YD

Adeiladu gorsaf MOT a depo teiar. Erection of MOT centre and tyre depot.

Full Planning Gwynedd
18 Sept 2026 In Progress C26/0540/14/LL

HEN GWRT Castle Ditch, Caernarfon, Gwynedd, LL55 2AY

Gosod uned gyddwysydd ar gefn yr adeilad/ Install condenser unit to rear

Full Planning Gwynedd
17 Sept 2026 In Progress C26/0413/14/CR

14 Castle Square, Caernarfon, Gwynedd, LL55 2NF

Addasiadau mewnol ac allanol i drosi'r adeilad / Internal and external alterations to convert building

Listed Building Consent Gwynedd
17 Sept 2026 Decided NP2/11/188C

Tan y Dderwen, Beddgelert. LL55 4UY

Non-material Amendment to Planning Permission NP2/11/188B dated 28/07/2026 including a removal of a window, installation of an air-source heat pump an...

Non Material Amendments Snowdonia
17 Sept 2026 Decided NP2/11/634M

Railway Station, Beddgelert. LL55 4YW

Discharge Conditions 3 (Scheme of biodiversity enhancement),4 (Scheme of broadband infrastructure),5 (Dust, noise and vibration scheme),6 (External li...

Discharge of Conditions Snowdonia
16 Sept 2026 In Progress C26/0535/23/DT

Isallt, 2 Tai Craig Y Don, Cwm Y Glo, LL55 4DL

Adeiladu modurdy gyda gofod gweithio llawr cyntaf Construct a garage with first floor workroom

Householder Planning Gwynedd
15 Sept 2026 In Progress C26/0553/18/AC

SCHOOL HOUSE, Deiniolen, Caernarfon, Gwynedd, LL55 3HH

Cais i ddiwygio amod 2 (cynlluniau a gymeradwywyd) o ganiatâd cynllunio C25/0143/18/LL ar gyfer newid defnydd hostel (defnydd unigryw) i lety gwyliau ...

Removal/Variation of Condition(s) Gwynedd
14 Sept 2026 In Progress C26/0538/15/LL

Land Adjacent To 10 Warden Street, Llanberis, LL55 4HP

Codi annedd newydd. Erection of new dwelling

Full Planning Gwynedd
11 Sept 2026 In Progress C26/0525/18/DT

RHOS AERON, Seion, Caernarfon, Gwynedd, LL55 3AL

Codi estyniad unllawr a balconi, ynghyd ag addasiadau cysylltiedig. Erection of single storey extension & balcony, along with associated alterations.

Householder Planning Gwynedd
10 Sept 2026 In Progress C26/0542/18/HY

Amgueddfa Cymru, Llanberis, LL55 4TY

Uwchraddio'r arwyddion a'r dehongli ar draws y safle i gyd / Update the signs and interpretation across the whole site

Advertisement Consent (HY) Gwynedd
9 Sept 2026 In Progress C26/0537/18/CR

Amgueddfa Cymru, Llanberis, LL55 4TY

Gwaith mewnol i greu cyntedd newydd o fewn G03 a G04, creu partitwns newydd o fewn G05 a gwaith tynnu panelling presennol a gwaith gosod arwyddion a d...

Listed Building Consent Gwynedd
2 Sept 2026 Decided NP2/11/LB219D

7 Sygun Terrace, Beddgelert. LL55 4NA

Listed Building Consent for replacement of the rotten, non-original glazed door and side-panel glazing within later dormer on the rear elevation with ...

Listed Building Consent Snowdonia
2 Sept 2026 In Progress C26/0527/26/DT

10 Bryn Y Gof, Caeathro, Caernarfon, Gwynedd, LL55 2TA

Dymchwel rhan o gefn yr annedd ac adeiladu estyniad unllawr yng nghefn yr annedd. Demolition of part of the rear of the dwelling and the erection of a...

Householder Planning Gwynedd
1 Sept 2026 Decided NP2/11/18N

Y Warws, Beddgelert. LL55 4UY

Change of use of existing retail buildings to form 6 residential units (Use Class C3) along with retention of existing parking areas, proposed drainag...

Full Snowdonia
28 Aug 2026 In Progress C25/0740/20/EIA

Land At And Adjacent To The Former Ferodo Site, Griffiths Crossing, Caernarfon, LL55 1TP

Cais amlinellol gyda holl faterion wedi eu cadw'n ol ar gyfer dymchwel adeiladau a strwythurau presennol, ailraddio'r tir a codi adeilad canolfan data...

Environmental Impact Assessment Gwynedd
28 Aug 2026 In Progress C26/0513/23/RA

Tir Ger / Land By Glyntwrog Inn, Llanrug, Caernarfon, LL55 4AN

Rhyddhau amod 2 (llechi), 3 (deunyddiau), 8 (dulliau amgau), 9 (tirlunio), 12 (bioamrywiaeth) o gais cynllunio gwreiddiol C21/0564/23/LL. Discharge of...

Approval of Details Reserved by Condition Gwynedd
25 Aug 2026 In Progress C26/0502/19/RA

Cyngor Gwynedd, BONTNEWYDD PRIMARY SCHOOL, Bontnewydd, Caernarfon, Gwynedd, LL55 2UF

Cais ar gyfer rhyddhau amod (5) o ganiatâd cynllunio C24/1050/19/LL sy'n ymwneud a cyflwyno cynllun tirlunio a phlannu coed. Application to discharge ...

Approval of Details Reserved by Condition Gwynedd
19 Aug 2026 Approved 30 Sep C26/0476/19/DT

21 Dôl Beuno, Bontnewydd, Caernarfon, Gwynedd, LL55 2UE

Dymchwel adeilad allanol a chodi estyniad deulawr cefn Demolish outbuilding and construct a two storey rear extension

Householder Planning Gwynedd
17 Aug 2026 In Progress C26/0334/23/DT

17 Glan Moelyn, Llanrug, Caernarfon, Gwynedd, LL55 4PG

Codi estyniad llawr cyntaf dros gegin/ystafell fwyta bresennol Erection of a first floor extension over existing kitchen/dining

Householder Planning Gwynedd
13 Aug 2026 In Progress C26/0497/23/LL

PEN Y BUARTH Lôn Groes, Llanrug, Caernarfon, Gwynedd, LL55 4AF

Codi adeilad amaethyddol newydd o fath ysgubor bolyn at ddibenion amaethyddol cyffredinol. Erect a new general purpose pole barn agricultural building

Full Planning Gwynedd
13 Aug 2026 Decided NP3/15/108A

Ty'n Coed, Nant Peris. LL55 4UL

Alterations and extension

Full Snowdonia
11 Aug 2026 In Progress C26/0482/26/DT

Hendy, GWASTAD FAES, Waunfawr, Caernarfon, Gwynedd, LL55 4AX

Estyniad i ochr yr eiddo. Extension to the side of the property.

Householder Planning Gwynedd
11 Aug 2026 Approved 24 Sep C26/0481/18/RA

Amgueddfa Cymru, Llanberis, LL55 4TY

Rhyddhau amodau rhif 3 (manylion ffenestr), 4 (llawr llechi), 5 (manylion paneli a drysau) a 6 (manylion cadw' drws) ar ganiatad rhif C25/0937/18/CR /...

Approval of Details Reserved by Condition Gwynedd
11 Aug 2026 Approved 24 Sep C26/0483/18/RA

Amgueddfa Cymru, Llanberis, LL55 4TY

Rhyddhau amodau rhif 4 (manylion drysau newydd), 8 (samplau cerrig) a 10 (samplau deunyddiau) ar ganiatad rhif C24/0976/18/CR / Discharge conditions n...

Approval of Details Reserved by Condition Gwynedd
11 Aug 2026 Approved 24 Sep C26/0484/18/RA

Amgueddfa Cymru, Llanberis, LL55 4TY

Rhyddhau amodau rhif 4 (manylion drysau), 8 (samplau cerrig) a 9 (samplau deunyddiau) ar ganiatad rhif C24/0977/18/LL/ Discharge conditions nos 4 (doo...

Approval of Details Reserved by Condition Gwynedd
31 Jul 2026 In Progress C26/0297/26/AC

TAN Y BRYN, Waunfawr, Caernarfon, Gwynedd, LL55 4BZ

Cais i ddiwygio amod 2 o ganiatâd cynllunio C18/0856/26/LL ar gyfer gwaith adnewyddu ar y bwthyn presennol gan gynnwys gwaith dymchwel waliau, newidia...

Removal/Variation of Condition(s) Gwynedd
28 Jul 2026 Approved 18 Sep C26/0455/26/RA

BRYN EDEN, Caeathro, Caernarfon, Gwynedd, LL55 2SG

Rhyddhau amod rhif 2 (cofnod ffotograffig) ar ganiatad rhif C21/0841/26/CR / Discharge condition no 2 (photographic record) on consent ref C21/0841/26...

Approval of Details Reserved by Condition Gwynedd
28 Jul 2026 In Progress C26/0438/14/LL

Llywodraeth Cynulliad Cymru, CROWN BUILDING North Penrallt, Caernarfon, Gwynedd, LL55 1EP

Newid defnydd arfaethedig o hen swyddfeydd y llywodraeth yn 37 o fflatiau fforddiadwy ynghyd â chadw swyddfeydd ar gyfer gwasanaethau cymorth, estynia...

Full Planning Gwynedd
22 Jul 2026 In Progress C26/0414/19/LL

Dol Beuno, Bontnewydd, LL55 2UE

Adeiladu wal amddiffyn rhag llifogydd wedi'i hatgyfnerthu Construction of a reinforced flood defence wall

Full Planning Gwynedd
17 Jul 2026 In Progress C25/0622/14/LL

Caffi, 6 Eastgate Street, Caernarfon, Gwynedd, LL55 1AG

Addasiadau mewnol i ail-strwythuro'r gosodiad a gwaith amnewid y to ar gefn yr eiddo / Internal alterations to re-organise the layout and alterations ...

Full Planning Gwynedd
17 Jul 2026 In Progress C26/0346/18/RA

CAMELOT, Penisarwaun, Caernarfon, Gwynedd, LL55 3BN

Cais materion a gadwyd yn ôl i ryddhau amod 9 (Arolwg Ffyngau Cap Cŵyr), yn dilyn rhoi caniatâd cynllunio amlinellol cyfeirnod C23/0259/18/AM ar gyfer...

Approval of Details Reserved by Condition Gwynedd
14 Jul 2026 In Progress C26/0418/23/RA

BOD GWILYM Allt Goch, Cwm Y Glo, Caernarfon, Gwynedd, LL55 4DW

Cais i ryddhau amodau 2 (gorffeniad to llechi Cymreig naturiol), 3 (cytuno gorffeniad allanol), 7 (manylion wal gynnal) o ganiatâd C25/0083/23/LL. App...

Approval of Details Reserved by Condition Gwynedd
13 Jul 2026 Approved 28 Sep C26/0410/26/DT

MON ABRI, Waunfawr, Caernarfon, Gwynedd, LL55 4BQ

Cynyddu uchder crib yr anecs a ffenestri gromen newydd yng nghefn yr eiddo. Increase ridge height of annex and new dormers to rear of the property.

Householder Planning Gwynedd
10 Jul 2026 In Progress C26/0359/14/CR

MORGAN LLOYD, 10 Castle Square, Caernarfon, Gwynedd, LL55 2NF

Uwchraddio'r arwyddion presennol a gwaith addurno ac adfer mewnol / Upgrade existing signs and some internal redecoration and repair works

Listed Building Consent Gwynedd
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Data updated daily. Source: Gwynedd and Snowdonia planning portals.