Planning applications in Gwynedd, April 2026

WEIRGLODD DYWYLL, Waunfawr, Caernarfon, Gwynedd, LL55 4AX

Estyniad deulawr arfaethedig, ystafell haul a modurdy ddwbl newydd Proposed two storey extension, conservatory and new double garage

Pysgod Llŷn, PYSGOD LLŶN Y Maes, Pwllheli, Gwynedd, LL53 5HA

Cais llawn ol-weithredol i newid defnydd o siop bysgod (dosbarth defnydd A1) i fwyty (dosbarth defnydd A3) / Retrospective application for change of use from a fish shop (Use Class A1) to a resaturant (Use Class A3)

BRYN DERW Llandygai Village, Llandygai, Bangor, Gwynedd, LL57 4HU

Lledu’r fynedfa gerbydol bresennol i’r blaen, tynnu’r wal floc rendr bresennol yn y cefn a gosod ffens banel cyfansawdd (gorffeniad effaith pren lliw cneuen gastan), a gosod giât cefn newydd a grisiau o fewn y wal gerrig bresennol. Widening of existing vehicular entrance to the front, removal of the existing rendered block wall to the rear and installation of new composite panel fence (wood‑effect finish in chestnut colour), together with the installation of a new rear gate and steps within the existing stone wall.

16 Cae Mur, Caernarfon, Gwynedd, LL55 1DA

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.

Plot 11a, Ffordd Caernarfon, Felinheli, LL56 4RZ

Diwygio amod 2 (cynlluniau) a diddymu amod 3 (llechi) o hawl cynllunio C21/0445/20/LL. Amend condition 2 (plans) and remove condition 3 (slates) of planning permission C21/0445/20/LL.

Gwasanaeth Tân Ac Achub Gogledd Cymru, FIRE STATION Tremadog Road, Porthmadog, Gwynedd, LL49 9HR

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

1-8, Maes Tyn Gelaist, Criccieth, LL52 0HH

Cais i rhyddhau amodau 3 (llechi), 4 (gorffeniad allanol), 6 (enw Cymraeg) a 9 (adroddiad archeolegol) o ganiatad C25/0250/35/LL ar gyfer codi un tŷ/ Application to discharge conditions 3 (slates), 4 (external finish), 6 (Welsh name) and 9 (archaeological report) from planning application C25/0250/35/LL to construct one dwelling

Shop, 12 Gaol Street, Pwllheli, Gwynedd, LL53 5RG

Cais am estyniad cefn uwchben to gwastad presennol a newid blaen y siop i uPVC i gyd fynd a’r edrychiad gwreiddiol / Application for a first floor extension on top of the existing flat roof and change existing shopfront to uPVC to match the existing

VICTORIA HOTEL High Street, Bethesda, Bangor, Gwynedd, LL57 3AN

Addasiadau mewnol er creu baddonau "en suite" ar y llawr cyntaf ac ail, gosod gwydriad eilradd ac amnewid y ffenestri to presennol am rhai maint mwy / Internal alterations to create en-suite facilities on first and second floor, install secondary glazing and replace existing rooflights with larger ones

Union Buildings, Heol Fadog, Porthmadog, LL49 9BU

Cais llawn i newid defnydd yr adeilad presennol i ddefnydd cymysg i gynnwys modurdy MOT(Defnydd B2) gyda gweddill yr adeilad yn cael ei ddefnyddio fel man storio a warysau (Defnydd B8) / Full planning application for the change of use of the existing building to a mixed use comprising of a MOT garage (B2 use class) with the remainder of the building to be used for storage and warehouse purposes (B8 use class)

Sanford, Ffordd Pen Y Bryn, , Bangor, LL57 1YX

Gwaith i goeden sydd yn cael ei warchod gan O rchymyn Cadw Coed. Work to a tree which is protected by the Tree Preservation Order

NATIONAL GRID CO PLC, Llanddeiniolen, Caernarfon, Gwynedd, LL55 3AN

Cais i ryddhau amod 10 o ganiatâd cynllunio gwreiddiol C25/0554/18/LL i gyflwyno cynllun dileu rhywogaethau anfrodorol ymledo cyn i unrhyw ddatblygiad ddigwydd. l. Discharge of condition 10 to submit an invasive non-native species eradication plan before any development takes place.

Fferm Ffynnon, Mynytho, Pwllheli, LL53 7RH

Cais i adeiladu estyniad ar edrychiad dwyreiniol annedd ar wahân, a gosod carafan statig dros dro. / Application to construct an extension on the eastern elevation of a detached dwelling, and to site a temporary static caravan

The Pine Mine, THE PINE MINE Holyhead Road, Bangor, Gwynedd, LL57 2HQ

Arddangos arwydd newydd ar safle busnes. Bydd yr arwydd ar ffurf sgrin arddangos gyda chynnwys cyfnewidiol a bydd yn osodiad parhaol. Display of a new sign on a business premises. The sign will comprise a display screen with interchangeable content and will be a permanent installation.

ARGRAIG Lleyn Street, Pwllheli, Gwynedd, LL53 5SW

Cais ar gyfer cyflwyno materion a gadwyd yn ol ar gyfer caniatad cynllunio C23/0551/45/AM sy’n ymweud a (i) graddfa (ii) gwedd (iii) tirlunio (iv) llechi (v) gorffeniad allanol y datblygiad / Application to submit reserved matters on outline planning permission C23/0551/45/AM which related to (i) scale (ii) appearance (iii) landscaping (iv) slates (v) external finish of the development

4 Maes Hyfryd, Llanaelhaearn, Caernarfon, Gwynedd, LL54 5AJ

Cais i ddiddymu Cytundeb 106 yn ymwneud a thŷ fforddiadwy i berson lleol a ganiatawyd o dan gyfeirnod C06D/0691/37/LL - 4 Maes Hyfryd, Llanaelhaearn. Application to remove Section 106 agreement relating to an affordable dwelling for a local person approved under ref. no. C06D/0691/37/LL - 4 Maes Hyfryd, Llanaelhaearn.

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

Cais i ryddhau amodau 3, 4 a 13 ar ganiatâd cynllunio C24/0689/42/LL yn ymwneud a manylion llechi tô, gorffeniadau allanol a system goleuo / Application to discharge conditions 3, 4 and 13 of planning approval C24/0689/42/LL relating to details of roof slate, external finishes and lighting system.

OLD BAKERY COTTAGE High Street, Tywyn, Gwynedd, LL36 9AE

Cais am Dystysgrif Datblygiad Cyfreithlon ar gyfer Defnydd presennol cyn Fecws yn dy annedd (Dosbarth Defnydd C3) Application for a Lawful Development Certificate for the existing use of a former Bakery as a dwelling house (C3 Use Class)

4 Cefn Y Bryn, Bethesda, Bangor, Gwynedd, LL57 3BE

Estyniad deulawr arfaethedig i gefn yr eiddo Proposed two store extension to the rear of property

FFERM BONT FECHAN, Llanystumdwy, Criccieth, Gwynedd, LL52 0LS

Cais i ddymchwel y modurdy presennol a chodi adeilad deulawr fel atodiad preswyl yn gysylltiedig i’r prif eiddo / Application to demolition existing garage and to build new two storey building as dwelling annex to existing main farm house.

YSGUBOR, Llandygai, Bangor, Gwynedd, LL57 4BG

Newid defnydd ardal cadw cathod a cwn ynghyd a caeau amaethyddol i greu ardal ymarfer corff i gwn sydd yn gaeedig. Change of use of existing cattery, kennels and agricultural land to create a new enclosed dog exercise area on land at Ysgubor, Llandegai

Plots - 3, Stad Ddiwydiannol Penygroes,, Penygroes, LL54 6DB

Adeilad diwydiannol cyffredinol/ysgafn a storio arfaethedig B1, B2 and B8. Proposed general/light industrial and storage building B1, B2 and B8.

GARREG FAWR, Uwchmynydd, Pwllheli, Gwynedd, LL53 8DA

Cais am ddiwygiadau di-faterol i ganiatâd cynllunio C24/0682/30/DT er mwyn cynyddu uchder crib estyniad a chynnwys ffenestri cromen yn y to er mwyn creu gofod byw mewnol / Application for non-material amendments to planning approval C24/0682/30/DT in order to increase height of extension's ridge and include dromer windows to create internal living space

HEDDWCH, 3 Bryn Y Paderau Estate, Tywyn, Gwynedd, LL36 9LA

CAIS I GREU ESTYNIADAU AR GEFN AC OCHR YR EIDDO. GOSTWNG UCHDER Y SILIAU I DRI O'R FFENESTRI LLOFFT. YCHWANEGU DWY FFENEST GROMEN I DDRYCHIAD BLAEN YR EIDDO. CODI YSTAFELL ARDD YN NGHORNEL GOGLEDD DDEHEUOL YR ARDD / APPLICATION FOR SIDE AND REAR EXTENSIONS. LOWER THE HEIGHT OF THE WINDOW SILLS TO THREE OF THE BEDROOMS. INSTALLATION OF TWO DORMER WINDOWS TO THE PRINCIPAL ELEVATION. ERECTION OF A GARDEN ROOM IN THE NORTH EASTERN CORNER OF THE GARDEN

TYN Y COED Borth Road, Porthmadog, Gwynedd, LL49 9UP

Cais arfaethedig am estyniad llanw umllawr ar fyngalo gydag estyniad i'r to / Proposed single storey infill extension to bungalow with an extension to roof

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

Codi ty annedd newydd. Erection of new dwelling

TŶ'N LLAN Lôn Llan, Edern, Pwllheli, Gwynedd, LL53 6JA

Cais cynllunio llawn sydd mewn dau ran, sef: 1. Newid defnydd tir er mwyn gosod 6 o Godennau Glampio tymhorol; 2. Newid defnydd tir ar wahan er mwyn creu man storio codennau a charafanau Yn ogystal, bwriedir addasu’r fynedfa bresennol a chreu trac cerbydol, creu llecyn parcio ar gyfer 6 o gerbydau, gosod system trin carthion newydd a phibellau draenio a thirlunio safle. Full application which is in two parts, namely: 1. Change of use of land to locate 6 seasonal glamping pods; 2. Change of use of separate piece of land to create a storage area for pods and caravans In addition, it is also proposed to alter an existing entrance, create a parking area for 6 vehicles, install new treatment plant and drainage pipes and site landscaping.

Capel Moriah, Llanystumdwy, LL52 0SH

Cais diwygiad ansylweddol i ganiatad cynllunio C21/0420/41/LL er mwyn amnewid "ground source heat pump" i bwmp gwres aer ynghyd ag newidiadau mewnol / Application for a non-material amendment to planning permission C21/0420/41/LL to replace ground source heat pump with air source heat pump and internal alterations

J M Pugh Estate Agents, Office 1, 26 Penlan Street, Pwllheli, Gwynedd, LL53 5DE

Newid defnydd rhan o'r llawr daear o swyddfa i uned breswyl, a'r lloriau cyntaf ac ail yn fflatiau preswyl a chodi estyniad bach ar y cefn / Change of use of part of ground floor from office into residential use, along with the first and second floor to create residential flats and a small extension to the rear

CNICHT, 25 Cae Sarn, Y Groeslon, Caernarfon, Gwynedd, LL54 7TW

Variation of condition 4 (approved plans) of C25/0028/17/DT. Amrywio amod 4 (cynlluniau cymeradwy) o C25/0028/17/DT.

TŶ ISAF, Bwlchtocyn, Pwllheli, Gwynedd, LL53 7EU

Cais llawn i ddymchwel tŷ preswyl ar wahan presennol a chodi ty preswyl unllawr newydd yn ei le ynghyd a chodi modurdy dwbl ar wahan a chreu mynedfa gerbydol newydd / Full application to demolish an existing detached residential dwelling and construction of new single storey replacement dwelling, creation of a new vehicular access and construction of a detached double garage.

Prifysgol Cymru Bangor, SCHOOL OF PLANT BIOLOGY Ffordd Treborth, Treborth, Bangor, Gwynedd, LL57 2RQ

Gwaith i goed sy'n destun Gorchymyn Gwarchod Coed / Works to trees subject to a Tree Preservation Order

Tir Ger/Land Adj. Maes Llwyd, Llanystumdwy, LL52 0SQ

Cais i rhyddhau amod 6 o ganiatad(cynllun fforddiadwy) C25/0204/41/LL / Application to discharge condition 6(affordability plan) from planning consent C25/0204/41/LL

THE FEATHERS INN, Llanystumdwy, Criccieth, Gwynedd, LL52 0SH

Newidiadau i’r cais a ganiatawyd o dan cyfeirnod C22/0027/41/LL i gynnwys newid maint a nifer ffenestri, ymestyn rhan o’r estyniad i greu toiled hygyrch ac ymestyn y teras ar pen yr estyniad, gosod paneli solar, ail-lleoli’r mynediad i’r fflat a gosod ffliw newydd / Changes to the approved application under reference C22/0027/41/LL to include changes to the number and size of windows, enlarge size of extension to create an accessible toilet and increase the terrace on the end of the extension, site solar panels, re-locate the entrance to the flat and install new flue

THE FEATHERS INN, Llanystumdwy, Criccieth, Gwynedd, LL52 0SH

Newidiadau i’r cais a ganiatawyd o dan cyfeirnod C22/0028/41/CR i gynnwys newid maint a nifer ffenestri, ymestyn rhan o’r estyniad i greu toiled hygyrch ac ymestyn y teras ar pen yr estyniad, gosod paneli solar, ail-lleoli’r mynediad i’r fflat a gosod ffliw newydd / Changes to the approved application under reference C22/0028/41/CR to include changes to the number and size of windows, enlarge size of extension to create an accessible toilet and increase the terrace on the end of the extension, site solar panels, re-locate the entrance to the flat and install new flue

FFERM FRON DIRION GANOL, Cilgwyn, Caernarfon, Gwynedd, LL54 7SE

Tystysgrif Datblygiad Cyfreithlon ar gyfer gosod tyrbin gwynt arunig o fewn cwrtil tŷ annedd. Lawful Development Certificate for the proposed installation of a stand alone wind turbine within the curtilage of a dwellinghouse.

Ysgol Y Faenol Penrhos Road, Penrhosgarnedd, LL57 2NN

Diwygiad ansylweddol i gais cynllunio C19/0087/25/R3 er mwyn ychwanegu dau lecyn parcio anabl Non-material amendment to planning application C19/0087/25/R3 for the addition of two disabled parking bays

Yr Elen, Pennau'r Bronnydd, Tal Gae, , Tregarth, LL57 4AE

Cais i ddymchwel ystafell haul presennol a chodi estyniad unllawr cefn ynghyd ag estyniad llawr cyntaf ar ben y modurdy presennol. Application to demolish the existing sun room and construct a single-storey rear extension together with a first-floor extension above the existing garage.

Maes Gwyn, Lon Engan, Abersoch, Pwllheli, LL53 7HR

Ail gyflwyniad o gais C25/0552/39/DT a wrthodwyd ar gyfer ymestyn eiddo presennol / Re-submission of refused planning application C25/0552/39/DT to extend the existing property.

Land To The North Of Glanaber Garage Ffordd Y Borth, Borth Y Gest, Gwynedd, LL49 9TP

Cais rhybudd o flaen llaw i greu trac 90m o hyd x 3m o led / Prior notification application to create a 90m long x 3m wide track

GAERWEN, Ynys, Criccieth, Gwynedd, LL52 0NU

Cais rhybudd o flaen llaw i adeiladu sied amaethyddol ar gyfer cadw porthiant a pheiriannau / Prior notification application to erect an agricultural shed for storing feed and machinery

Parc Coed Helen Aberforeshore, Caernarfon, 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.

Caravan Park, TIR GLYN, Uwchmynydd, Pwllheli, Gwynedd, LL53 8DA

Cais llawn i newid defnydd cae amaethyddol i gynnwys 10 llain carafán teithiol tymhorol yn ychwanegol i'r prif safle ynghyd a chodi adeilad toiledau/cawodydd, gwelliannau tirlunio meddal, creu mynedfa/allanfa bwriedig a gosod offer trin / Change of use of an agricultural field to accommodate 10 seasonal touring caravan pitches additional to the main site, the erection of a toilet block, soft landscape improvements

SPAR STORES High Street, Bethesda, Bangor, Gwynedd, LL57 3AY

Cais i ryddhau Amod 4 (Cynllun Tirlunio) yn llawn o ganiatâd cynllunio C23/0547/13/LL ac i ryddhau y rhan sy’n weddill o’r amod fel a nodir yn y llythyr penderfyniad ar gais C25/0039/13/RA. Application to fully discharge condition 4 (Landscaping Plan) on application C23/0547/13/LL and discharge the remaining part of the condition as stated on the decision letter on application C25/0039/13/RA

Tir Henllys , Llanbedrog, Pwllheli, LL53 7RE

Cais i ryddhau amodau a ategwyd ar ganiatâd cynllunio rhif C24/0087/38/LL) , yn benodol: amod 3 - Llechi to; amod 4 - Manylion gorffeniad allanol; amod 5 - Manylion tirlunio; amod 9 - Manylion draenio / Application to discharge conditions imposed on planning approval C24/0087/38/LL), namely: condition 3 - roofing slate; condition 4 - External finishes details; condition 5 - Landscaping details; condition 9 - Drainage details.

HADDEF, 28 Maes Y Farchnad, Penygroes, Caernarfon, Gwynedd, LL54 6NN

Estyniad unllawr cefn Single storey rear extension

Tir Ger/Land Adj. Maes Llwyd, Llanystumdwy, LL52 0SQ

Cais i rhyddhau amod 5 o ganiatad C25/0204/41/LL / application to discharge condition 5 from planning consent C25/0204/41/LL

DAFARN DYWARCH, Rhoshirwaen, Pwllheli, Gwynedd, LL53 8HW

Cais i ryddhau amodau 5, 7 a 8 o ganiatâd cynllunio C15/1175/30/LL yn ymwneud a thirlunio a mannau parcio a throi i gerbydau / Application to discharge conditions 5, 7 and 8 of planning approval C15/1175/30/LL relating to landscaping and vehicle parking and turning spaces

Nyth Bach, Tyddyn Hir, Caerhun, Bangor, Gwynedd, LL57 4DU

Cais am Dystysgrif Datblygiad Cyfreithlon ar gyfer defnydd anecs Nyth Bach, Caerhun, Bangor, LL57 4DU fel uned preswyl ar wahân (C3) am gyfnod parhaus a di-dor o 10 mlynedd, yn groes I gofynion amod 2 o ganiatâd Cynllunio C10A/0112/25/LL Application for a Lawful Development Certificate for the use of the annex known as Nyth Bach, Caerhun, Bangor, LL57 4DU as a separate residential unit (C3) for a continuous and uninterrupted period of 10 years, contrary to the requirements of condition 2 of planning permission C10A/0112/25/LL

Lee Bank Lon Rhoslyn, Abersoch, Pwllheli, Pwllheli, LL53 7BB

Cais am ddiwygiadau di-faterol i ganiatâd cynllunio C21/0086/39/DT er mwyn ail leoli a lleihau maint adeilad cadw cwch bwriedig / Application for non-material amendments to planning approval C21/0086/39/DT in order to relocate and reduce the size of proposed boathouse.