Planning applications in Gwynedd, May 2026

PENNANT, Caeathro, Caernarfon, Gwynedd, LL55 2SG

Codi adeilad allanol unllawr to un brig, yn cynnwys swyddfa, gym ac ystafell ymolchi sydd yn cynnwys toilet. Proposed erection of new single storey lean-to roof building incorporating a gym office + WC room.

Chwarael Penrhyn / Penrhyn Quarry, Bethesda, LL57 4YG

Cais ar gyfer rhyddhau amod 37 (adroddiad manwl ar waith archeolegol) ar ganiatâd cynllunio C22/0336/16/MW / Application to discharge condition 37 (detailed report on archaeological works) on planning permission C22/0336/16/MW

Cymerau Layby, Aberllefenni, SY20 9RZ

Cais rhybudd o flaen llaw i greu cilfan 20m o hyd x 4m o led o fewn y goedwig / Prior approval application to create a 20m long x 4m wide lay by within the forest

LYNFOD, Waunfawr, Caernarfon, Gwynedd, LL55 4YS

Cais ar gyfer adeiladu estyniad deulawr yng nghefn yr eiddo ynghyd a porth i flaen yr eiddo. Two-storey extension to the rear of the property. Single-storey porch to the principle elevation.

Bywyd Gwyllt Glaslyn, Prenteg, LL49 9SP

Cais i ailosod decin, cladin, rampiau a grisiau o amgylch adeilad presennol y ganolfan wylio gwalch y pysgod, ymestyn y decin i dair ochr yr adeilad i gynnwys ardal biniau (ochr orllewinol). Lleoli dysgl microdon yng nghornel gogledd-ddwyrain yr adeilad i ymestyn 1m uwchben lefel y to. Gosod tŵr dur delltog newydd i gynnal camera PTZ, uchder 7m a 5.1m o led, 2m o ganol ochr orllewinol y guddfan Application to replace decking, cladding, ramps and steps around existing osprey viewing centre building, extend decking to three sides of the building to include a bin area(west side) Locate microwave dish at north-east corner of building to extend 1m above roof level. Instal new lattice steel tower to support PTZ camera, height 7m width 5.1m 2m from centre of west side of hide .

Land Near Hafan, Land Near Hafan, Llanllyfni, LL54 6ST

Codi 1 tŷ deulawr 3 ystafell wely Erection of one two-storey 3-bedroom house.

MOEL Y BERTH CARAVAN PARK Ffordd Porth Colmon, Llangwnnadl, Pwllheli, Gwynedd, LL53 8NT

Gosod 3 carafán sefydlog ychwanegol i safle carafanau presennol ynghyd a chysylltu i draeniau presennol. Siting of 3 additional static caravans to existing caravan site including connection to existing drains.

CREIGLE, Brynrefail, Caernarfon, Gwynedd, LL55 3NY

Estyniad unllawr i'r drychiad blaen. Erection of a single storey extension to the front elevation.

Bodlondeb Lon China, Mynytho, Pwllheli,, LL53 7RN

Tynnu’r consyrfatri cefn presennol a’r estyniad, a chodi 2 estyniad cefn newydd unllawr bach a dormer to fflat. Tynnu 1 simne bresennol i ddarparu mwy o le a chreu trefniant byw mewnol mwy agored. Adfer y gwaith cerrig presennol i’r drychiad blaen, y tŷr pen (gable) a’r simneiau. / Removal of existing rear conservatory & extension and construction of 2no. new small single-storey rear extensions and flat roof dormer. Removal of 1no. existing chimney to provide additional space and a more open planning living arrangement internally. Restoration of existing stonework to front elevation, gable end and chimneys.

BRYN RHEDYN, Y Fron, Caernarfon, Gwynedd, LL54 7BG

Proposed rebuilding and refurbishment of existing barn structures. Ailadeiladu ac adnewyddu arfaethedig o strwythurau ysgubor presennol.

Former Dickies Boatyard, Beach Road,, Bangor, LL57 2SZ

Cais ar gyfer disodli amod 19 (cynllun adfer ac ol-ofal) ar ganiatâd cynllunio C15/1081/11/LL / Application to discharge condition 19 (restoration and aftercare plan) on planning permission C15/1081/11/LL

7 Victoria Place, Bethesda, Gwynedd, LL57 3AG

Newid defnydd siop ar y llawr gwaelod (Dosbarth Defnydd A1) i gaffi (Dosbarth Defnydd A3) a gosod system echdynnu. Change of use of the ground floor shop (Class Use A1) to a cafe (Class use A3) and installation of extract system

PLAS TAN DINAS, Dinas Dinlle, Caernarfon, Gwynedd, LL54 5TW

Cais i ddymchwel cyn dafarn ac adeiladu annedd dosbarth defnydd C3 newydd yn ei le. Application for the demolition of a former public house and the construction of a new dwelling (Use Class C3) in its place.

5 & 6 Llys Victoria, Stryd Fawr, Bethesda, Bangor, LL57 3AN

Diwygiad ansylweddol i gais cynllunio C25/0422/13/LL er mwyn diwygio dyluniad y ffenestr gromen i gynnwys 2 ffenestr (3 yn flaenorol) Non-material amendment to planning application to amend the design of the dormer window to include 2 windows (formerly 3).

Penrhos Polish Village, Lon Llanbedrog, Pwllheli, Gwynedd, LL53 7HN

Cais i rhyddhau rhan o amod 24 (adroddiad gwirio) ar ganiatâd rhif C22/0426/38/LL. Application to discharge part of condition 24 (verification report) on planning approval number C22/0426/38/LL.

ERYLDON, 1 Amanda Terrace, Borth Y Gest, Porthmadog, Gwynedd, LL49 9TT

Dymchwel modurdy ddwbl a storfa bresennol ynghyd â chodi modurdy newydd gyda llawr gyda defnydd ategol uwchben / Demolition of existing double garage and store together with erection of a replacement garage with ancillary use floor above

LLYSTYN GWYN, Bryncir, Garndolbenmaen, Gwynedd, LL51 9LX

Codi adeilad amaethyddol newydd ar gyfer cadw gwartheg o dan do dros y gaeaf gyda storfa slyri o dan y llawr. Erection of a new agricultural building for keeping cattle under cover over the winter with slurry storage under the floor.

NANT, Dinas, Pwllheli, Gwynedd, LL53 8SP

Codi sied amaethyddol ar gyfer da byw. Erection of agricultural shed for housing livestock.

Canolfan Siopa Dewi Sant, Ffordd Caernarfon, Bangor, Gwynedd, LL57 4TJ

Cynnig ar gyfer gosod chwe gorsaf gwefru cerbydau trydan cyflym a chyfarpar ategol o fewn maes parcio Parc Manwerthu Dewi Sant, gan gynnwys dau fan gwefru EV cwbl hygyrch. Proposal for the installation of six rapid electric vehicle charging stations and ancillary equipment within the car park of St David's Retail Park, including two fully accessible EV charging bays.

Zip World Llechwedd,, Blaenau Ffestiniog,, LL41 3NB

Atyniad twristiaeth newydd arfaethedig ar ffurf ‘Cartiau Gwyllt’ fel coaster a gyflenwir gan rym disgyrchiant, yn cynnwys codi trac rheilffordd yn gorwedd ar golofnau dur a strwythurau pont, gwaith peirianyddol i greu twneli, ynghyd â seilwaith cysylltiedig, ail-ddefnyddio adeilad presennol i ddarparu bae llwytho, codi adeilad newydd fel storfa sled coaster ac ail leoli bloc toiled presennol. Proposed new tourist attraction in the form of ‘Cartiau Gwyllt’ as a gravity-fed coaster, comprising the erection of a rail track supported on steel columns and bridge structures, engineering operations to create tunnels, together with associated infrastructure, reuse of existing building to provide a loading bay, erection of new building as coaster sled store and relocation of the existing toilet block.

Uned 2, Llanbedrog, Pwllheli, LL53 7TH

Cais i rhyddhau amod 7 (Manylion offer/ cyfarpar simnai neu ffliw, system awyru neu system echdynnu) o ganiatad cynllunio C23/0506/38/LL. Application to discharge conditon 7 (Details of plant/equipment of chimney or flue ventilation system or extraction system) of planning permission C23/0506/38/LL.

Welsh Slate Museum, GILFACH DDU, Llanberis, Caernarfon, Gwynedd, LL55 4TY

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

GWESTY MARIANFA, 68 St David's Road, Caernarfon, Gwynedd, LL55 1EL

Newid defnydd o Westy (C1) yn ôl i Ddefnydd Preswyl Llawn (C3)a chodi estyniad cegin yn y Cefn Change of use from Guest House (C1) back into full Residential Use (C) and erection of rear kitchen extension

Tir Maes Twnti, Morfa Nefyn, Pwllheli, LL53 6EU

Cais am ddiwygiadau di-faterol i ganiatâd cynllunio C24/0689/42/LL er mwyn newid lefelau lloriau gorffenedig y lleiniau er mwyn sicrhau cydymffurfiaeth gydag Dogfen M a draenio gydag man diweddariadau cydlyniad i'r gosodiad. Application for non-material amendments to planning approval C24/0689/42/LL for changing the finished floor levels of the plots to ensure compliance with Doc M and drainage, alongside minor coordination updates to the layout

Plot Of Land Near The Railway, PADARN COUNTRY PARK, Llanberis, Gwynedd, LL55 4TY

Ail-leoli mannau parcio o flaen Amgueddfa Lechi Cymru i leoedd parcio newydd yng nghornel ogledd-orllewinol maes parcio Parc Padarn yn Gilfach Ddu. Relocation of parking from in front of the National Slate Museum to new parking bays in the northwest corner of the Parc Padarn car park at Gilfach Ddu.

Land Adjacent To Bryn Garreg Lwyd, Tywyn, LL36 9HE

Cais am ddiwygiadau di-faterol i ganiatad cynllunio PIAW5/79/134 er mwyn gwneud man newidiadau i ddyluniadau’r tai a man newid i osodiad / Application for non-material amendments to planning approval PIAW5/79/134 in order to make minor changes to house designs and minor change to layout

A494 Bethel-Glan Yr Afon, Glan Yr Afon, LL23 7LD

(none)

HENDREGOED, Llaniestyn, Pwllheli, Gwynedd, LL53 8TF

Porth car blaen agored newydd ffram derw ac wedi ei gladio a derw. Byddai ardal y porth car ar gyfer defnydd domestig yn unig byddai'n darparu ardal sych/cysgodol i wefru 2 gerbyd trydan ac ardal i gadw boncyffion, celfi ac offer. New oak framed and oak clad open fronted carport / shed. The carport area will be for domestic use only and will provide a dry / sheltered area for charging 2no. electric vehicles and an area for storing logs, tools and equipment.

1 Cae Glas, Waunfawr, LL55 4YY

I godi sied ardd bren. To erect timber garden shed.

CROESOR Tan Y Maes, Y Felinheli, Gwynedd, LL56 4UQ

Lleoli catref symudol at defnydd ategol i'r prif dy annedd. Siting of a mobile home for ancillary use to the main dwellinghouse.

TALGOED, Llanbedrog, Pwllheli, Gwynedd, LL53 7UD

Dymchwel ty anedd presennol a codi ty newydd 1.5 llawr gyda 4 llofft. Demolition of existing dwelling and erection of Replacement 1.5 storey dwelling with 4no. bedrooms

Unit 2b, Zone 4, Ystâd Ddiwydiannol Cibyn, Caernarfon, Gwynedd, LL55 2BD

Mae’r cynnig yn ceisio ailddefnyddio adeilad presennol i ddarparu cyrtiau chwaraeon dan do a chyfleusterau ategol cysylltiedig. Bydd y datblygiad yn cynnwys: • 3 cwrt padel dan do • Derbynfa ac ardal gaffi / gymdeithasol (bar) (ategol) • Cyfleusterau newid a lles • 20 lle parcio ceir • 6 lle parcio beiciau The proposal seeks to reuse an existing building to provide indoor sports courts and associated ancillary facilities. The development will comprise: • 3 indoor padel courts • Reception and café / social area (Bar) (ancillary) • Changing and welfare facilities • 20 car parking spaces • 6 cycle parking spaces

FFERM GREUOR, Llanrug, Caernarfon, Gwynedd, LL55 2AQ

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

Nationwide Building Society, 30 - 32 Pool Street, Caernarfon, Gwynedd, LL55 2AS

Gosod peiriant ATM newydd a gwaith cysylltiedig. Installation of a new ATM and associated works

Nationwide Building Society, 30 - 32 Pool Street, Caernarfon, Gwynedd, LL55 2AS

Gosod arwyddion ATM wedi eu goleuo yn fewnol . I nternally illuminated ATM signage.

UXBRIDGE COURT Holyhead Road, Bangor, Gwynedd, LL57 2HW

Gwaith ar goed o dan Gorchymun Gwarchod Coed. / Work on trees with Tree Preservation Order.

RHANDIR, Abererch, Pwllheli, Gwynedd, LL53 6YS

Diddymu Cytundeb Adran 106 sy'n rhwymo meddiannaeth yr eiddo i berson lleol yn unig ac a osodwyd a'r ganiatad Cynllunio C97D/0228/20/AM Discharge Section 106 Agreement that restricts the occupancy of the property to local persons only imposed on Planning permission C97D/0228/20/AM

52 High Street, Criccieth, Gwynedd, LL52 0EY

Newid defnydd o ardal storio bresennol i fod yn sefydliad yfed – Dosbarth Defnydd A3 / Change of use of existing storage area to a drinking Establishment - Use Class A3

GLAN TRAETH North Road, Caernarfon, Gwynedd, LL55 1BE

Codi balconi hygyrch i ddefnyddwyr cadair olwyn ar gefn yr eiddo. Erection of a raised wheelchair accessible balcony to the rear of the property.

Pantdreiniog Industrial Estate, Carneddi, Bethesda, LL57 3LP

Codi dwy sied ddiwydiannol ar gyfer dosbarth defnydd B8 Erection of two industrial sheds for B8 use class

Cae Incline Fields,, Bangor, LL57 4HP

Cais i ryddhau amodau 3 (tai fforddiadwy), 4 (cynllun draenio dwr budur), 10 (cynllun croesi diogel i gerddwyr ar yr A5) ac 14 manylion unedau pympiau ffynhonnell aer. Application to discharge conditions 3 (affordable housing), 4 (foul water drainage scheme), 10 (safe pedestrian crossing scheme on the A5), and 14 (details of air source heat pump units).

Gwasanaeth Tân Ac Achub Gogledd Cymru, FIRE STATION Lower Cardiff Road, Pwllheli, Gwynedd, LL53 5NF

Cais i osod tanc i storio tanwydd Olew Llysiau Hydrodrio / Application for the installation of a fuel tank to store hydrotreated vegetable oil

NORTH WALES FIRE STATION Llanberis Road, Caernarfon, Gwynedd, LL55 2DF

Gosod tanc tanwydd i storio olew llysiau wedi'i drin â hydrogen. Installation of a fuel tank to store hydrotreated vegetable oil.

FIRE STATION, 27 - 28 Pendre Industrial Estate, Tywyn, Gwynedd, LL36 9LW

Cais i osod tanc i storio tanwydd Olew Llysiau Hydrodrio / Application for the installation of a fuel tank to store hydrotreated vegetable oil

Tir Wrth Gefn/Land At Rear 287 Stryd Fawr High Street, Bangor, Gwynedd, LL57 1YE

Codi uned storio ar wahân ac ardal parcio Erection of a detached storage unit and parking area

Shoe Zone, 256 High Street, Bangor, Gwynedd, LL57 1PA

Trosi rhan o'r llawr daear a'r lloriau uchod yn 6 uned byw (5 ychwanegol), newid defnydd y llawr daear o A1 i A3 a gosod blaen siop newydd / Conversion of part of ground floor and upper floors into 6 units (5 additional), change of use of ground floor from A1 to A3 and installation of a new shopfront

Smithy, Bryn Mor, Waunfawr, LL55 4EZ

Newid defnydd o adeilad presennol Dosbarth Defnydd B2 (gof) i uned storio amaethyddol. Change of use of existing Class Use B2 Smithy to agricultural storage unit

Shoe Zone, 256 High Street, Bangor, Gwynedd, LL57 1PA

Addasiadau mewnol i drosi rhan o'r llawr daear a'r lloriau uchod yn 6 uned byw a gosod blaen siop newydd / Internal alterations to convert part of ground floor and upper floors into 6 units and new shopfront

Uned 7, CANOLFAN MENAI Ffordd Garth, Garth Road, Bangor, Gwynedd, LL57 1DN

Newid defnydd o uned fanwerthu wag i ganolfan chwarae dan do i blant. Change of use from vacant retail unit to a children’s indoor play centre.

1 Bryn Y Paderau Estate, Tywyn, Gwynedd, LL36 9LA

Estyniad un llawr i gefn yr eiddo. Single storey extension to rear of property.