Planning applications in Gwynedd, October 2025

UWCHLAW'R RHOS, Penygroes, Caernarfon, Gwynedd, LL54 7UE

Defnydd o dir ger y brif iard fferm ar gyfer derbyn, golchi, didoli a chratio cerrig naturiol. Mae'r garreg yn cael ei phrosesu'n gyfan gwbl â llaw, gyda darnau llai yn cael eu golchi trwy olchwr bach ar y safle i gael gwared ar bridd a malurion, tra bod darnau mwy yn cael eu trin gyda pheiriant ar gyfer diogelwch ac ymarferoldeb. Ar ôl ei phrosesu, mae'r garreg yn cael ei rhoi mewn cratiau, ac mae cludwyr yn casglu'r garreg mewn cratiau o'r iard i'w dosbarthu Use of land adjacent to the main farm yard for the receipt, washing, sorting, and crating of natural stone. The stone is processed entirely by hand, with smaller pieces washed through a small on site washer to remove soil and debris, while larger pieces are handled with a machine for safety and practicality. Once processed, the stone is placed into crates, and hauliers collect the crated stone from the yard for distribution

Fferm Penmount Ffordd Glanrafon, Porthmadog, Gwynedd, LL49 9PP

Ymestyn a gwella storfa slyri bresennol. Extend and improve existing slurry storage.

Tŷ'n Llan, Llanystumdwy, Criccieth, Gwynedd, LL52 0SP

Tocio coeden o fewn ardal cadwraeth. Prune a tree within a conservation area.

Coach House, Royal Victoria Hotel,, Llanberis, LL55 4TY

Tynnu grisiau presennol ac ail-osod grisiau mewnol ynghyd ag newidiadau i'r fynedfa / Remove the existing staircase and site new ones and alterations to the entrance

Hafod, Tan Y Bryn Rhyd Y Groes, Pentir, Bangor, Gwynedd, LL57 4UU

Cais am Dystysgrif Datblygiad Cyfreithlon ar gyfer y defnydd o garafan sefydlog fel annedd parhaol (Dosbarth Defnydd C3). Application for a Lawful Development Certificate for the use of a static caravan as a permanent dwelling (C3 Use Class)

58 Ffordd Pentre Mynach, Barmouth, Gwynedd, LL42 1EN

Cais ôl-weithredol i osod pwmp gwres Riello. Retrospective application for the installation of a Riello heat pump.

20 Bryn Y Môr, Y Felinheli, Gwynedd, LL56 4LY

Estyniad unllawr cefn Single Storey Rear Extension

PEN Y GWYLWYR, Rhostryfan, Caernarfon, Gwynedd, LL54 7NT

Mae'r bwriad yn cynnwys dymchwel estyniad presennol sy'n dirywio ac ansefydlog a chodi estyniad newydd yn ei le gyda adain gefn. The proposal involves the demolition of the existing unstable and deteriorating extension and erect a new replacement extension with rear wing

Groeslon Isaf, Waunfawr, Caernarfon, Gwynedd, LL55 4DZ

Estyniad unllawr cefn. Single storey rear extension

Rhiw Goch, Clwt Y Bont, Deiniolen, Caernarfon, Gwynedd, LL55 3DE

Cais am Dystysgrif Datblygiad Cyfreithlon i gadarnhau dechreuad materol, sy'n cynnwys adeiladu'r wal flaen arfaethedig a'r draeniad mewnol o fewn 2 flynedd i'r cais materion a gadwyd yn ôl a gymeradwywyd (cyf C19/0003/18/MG) yn ymwneud â chaniatâd amlinellol cyf C13/0611/18/AM ar gyfer 17 o anheddau (gan gynnwys 2 uned fforddiadwy) a mynediad newydd – cynlluniau diwygiedig a gwybodaeth ychwanegol Application for a Lawful Development Certificate for confirmation of a material star,t comprising of the construction of the proposed headwall and internal drainage within 2 years of the approved reserved matters application (ref C19/0003/18/MG) relating to outline consent ref C13/0611/18/AM for 17 dwellings (including 2 affordable units) and new access – amended plans and additional information

Tir Glyn, Uwchmynydd, Pwllheli, Gwynedd, LL53 8DA

Adeiladu to dros storfa dail presennol Construct a roof over the current slurry/manure store

16 Eastgate Street, Caernarfon, Gwynedd, LL55 1AG

Cais i osod paneli solar ar do dwyreiniol yr adeilad. Application to install solar panels on the eastern roof of the building.

Gwrych Y Dryw, Botwnnog, Pwllheli, Gwynedd, LL53 8RG

ADEILADU ESTYNIAD I ADEILAD AMAETHYDDOL PRESENNOL GYDA STORFA SLYRI O DAN Y LLAWR / CONSTRUCTION OF AN EXTENSION TO EXISTING AGRICULTURAL BUILDING WITH AN UNDERGROUND SLURRY STORE

Llain O Dir / Land At Ffordd Llanberis, Caernarfon, Gwynedd, LL55 2ED

Adeiladu 36 o dai a gwaith seilwaith cysylltiedig gan gynnwys ffyrdd a llwybrau troed, gofod hamdden, tiroedd, draeniau, ac is- gorsaf newydd. Erection of 36 no. dwellings and associated infrastructure works including roads and footpaths, amenity space, landscaping and drainage measures, and a new substation.

Fferm Sarn Lôn Sarn Bach, Sarn Bach, Pwllheli, Gwynedd, LL53 7BG

Cais llawn i ddymchwel eiddo preswyl presennol (dosbarth C3) a chodi eiddo preswyl newydd (dosbarth C3) yn ei le ynghyd a gwelliannau i fynedfa bresennol / Full application for the demolition of an existing dwelling (C3 use) and cosntruction of a new replacement dwelling (C3 use) with improvements to an existing access.

Cysgod Y Coed, Llanfor, Y Bala, Gwynedd, LL23 7DU

Tocio a dymchwel coed gyda Gorchymyn Gwarchod Coed. Trimming and removal of trees under a Tree Protection Order.

Siop Fferm A Caffi Abersoch Bodlondeb Lôn Sarn Bach, Sarn Bach, Pwllheli, Gwynedd, LL53 7BG

Cais i ddiwygio amod 3 ar ganiatâd cynllunio C19/1106/39/LL er mwyn ymestyn oriau agor siop/caffi/ Application to amend condition 3 on planning approval C19/1106/39/LL in order to extend the shop/cafe's opening hours.

HIRDRE FAWR, Edern, Pwllheli, Gwynedd, LL53 8YY

Tanc concrid o dan ddaear gyda gorchudd rhwyllog Below ground concrete tank with slatted covering

Coleg Llandrillo, GLYNLLIFON COLLEGE, Llandwrog, Caernarfon, Gwynedd, LL54 5DU

Cais am ddiwygiad ansylweddol i newid geiriad amod rhif 9 o ganiatâd C22/0953/17/LL er mwyn newid edrychiad y to o gorchudd dur proffil lliw gwyrdd tywyll i orchudd sment rhychiog a gosod cladin carreg o fath "Wildstone Champagne Quarts 814" ar yr edrychiad deheuol cyn defnyddio'r adeilad, ynghyd â thynnu ffenestr cylch oddi ar yr edrychiad deheuol. Non-material amendment to application C22/0953/17/LL to vary wording of condition 9 in order to replace the profiled steel roof with a corrugated cement sheeting and place stone cladding of type "Wildstone Champagne Quarts 814" on the southern elevation prior to the use of the building along with the removal of the round window from the southern elevation.

Stryd Y Ffynnon, Gerlan, Bethesda, LL57 3TN

Eirthiad cynllunio ar gyfer gosod polyn LV sengl a pharhaol. Gwasanaethau presennol i eiddo wedi'u dad-ddolenni (eu gwahanu) a'u hail-leoli i bolyn newydd. Planning exemption for the installation of single LV pole & stay. Existing services to properties de-looped (separated) and repositioned to new pole.

TOWYN, Tudweiliog, Pwllheli, Gwynedd, LL53 8PD

CODI TO DROS RAN O IARD Y FFERM RHWNG DWY SIED BRESENNOL YNGHYD A CHREU STORFA SLYRI TANDDAEAROL / CONSTRUCTION OF A ROOF OVER PART OF THE FARM YARD BETWEEN TWO EXISTING BUILDINGS AND THE CONSTRUCTION OF AN UNDERGROUND SLURRY STORE

Meillionydd Fawr, Rhoshirwaen, Pwllheli, Gwynedd, LL53 8HU

Cais llawn i greu storfa slyri newydd o fewn adeilad amaethyddol presennol / Full application to create new slurry storage within an existing agricultural building

Gledhills Hair, GLEDHILLS HAIR Tan Y Fynwent, Bangor, Gwynedd, LL57 1DT

Cadw arwydd ar flaen yr adeilad a gosod partitwn mewnol fel rhwystr diogelwch / Retain sign to the front of the building and erect internal partition as a security barrier

Shell Porthmadog Service Station, Porthmadog, LL49 9NG

Gosod hysbyseb digidol Installation of digital advertisement hoarding

Welsh Slate Museum, Gilfach Ddu, Llanberis, Caernarfon, Gwynedd, LL55 4TY

Rhyddhau amod 5 (cyflwyno samplau morter) ar ganiatad rhif C24/0977/18/LL ac C24/0976/18/CR / Discharge condition 5 (submit mortar samples) on consent refs C24/0977/18/LL and C24/0976/18/CR

GWASTAD AGNES, Barmouth, Gwynedd, LL42 1DX

Cais am Dystysgrif Datblygiad Cyfreithlon ar gyfer parhau i ddefnyddio tir fel safle gwersylla ar gyfer uchafswm o 10 pitsh ar y tro, wedi iddo gael ei ddefnyddio gydol y flwyddyn am gyfnod parhaus a di-dor o 10 mlynedd neu fwy. Application for a Lawful Development Certificate for the continuation of the use of land as a camp site for a maximum of 10 tent pitches at a time, having been used throughout the year for a continuous and uninterrupted period of 10 years or more.

Hole In The Wall Inn, HOLE IN THE WALL INN Hole In The Wall Street, Caernarfon, Gwynedd, LL55 1RF

Gosod arwyddion goleuedig ac heb eu oleuo tu allan i'r adeilad. Erection of illuminated and non-illuminated signs to the exterior of the building.

Summerville, 89 Ffordd Wynne, Blaenau Ffestiniog, Gwynedd, LL41 3DW

Estyniad deulawr i gefn yr eiddo. Two-storey extension to the rear of the property.

GYPSY WOOD PARK Lôn Caeathro, Bontnewydd, Caernarfon, Gwynedd, LL55 2YA

Adeilad gweithgareddau dan do bwriededig Proposed indoor activities building

DENBIGH HOUSE, 36 High Street, Llanberis, Gwynedd, LL55 4EU

Codi estyniad unllawr cefn Erection of single storey rear extension

15 Tŷ'n Y Mur, Morfa Nefyn, Pwllheli, Gwynedd, LL53 6DF

Estyniad i modurdy presennol. Extending an existing garage

31 High Street, Caernarfon, Gwynedd, LL55 1RH

Cais cynllunio ar gyfer diwygio amod 4 (oriau agor) ar ganiatad cynllunio rhif C24/1096/14/LL o 07:00am - 18:00pm i 07.00am - 12:00am. Planning application to amend condition 4 (opening hours) on planning consent no. C24/1096/14/LL from 0700am - 18:00pm to 07.00 am- 12:00am

PEN Y BRYN, Chwilog, Pwllheli, Gwynedd, LL53 6SX

Adeiladu storfa slyri newydd. New slurry storage.

TAI'R FFYNNON ISAF Cytir Lane, Bangor, Gwynedd, LL57 4DA

Cynnig i ddymchwel yr annedd bresennol, a'i disodli ag unedau swyddfa symudol a lle parcio ar gyfer staff. Proposal to demolish existing dwelling, replacing with portable office units and parking for staff.

Tir / Land At Greenacres Holiday Park, Black Rock Sands, Morfa Bychan, LL49 9YF

Gosod gorsaf sylfaen telathrebu sy'n cynnwys monopol 23.14m yn cynnal 6 antena ar ffrâm ben, ynghyd â 3 chabinet offer ar y ddaear, 1 cabinet mesurydd o fewn cyffiniau wedi'i ffensio a datblygiad ategol iddo. Installation of a telecommunications base station comprising a 23.14m monopole supporting 6 no antennas on a headframe, together with 3 no ground based equipment cabinets, 1 no meter cabinet within fenced compound and ancillary development thereto.

VEHICLE INSPECTORATE Lôn Cae Ffynnon, Cibyn Industrial Estate, Caernarfon, Gwynedd, LL55 2BD

Newid defnydd gorsaf brofi VOSA i ffurfio Masnachwyr Coed ac Adeiladwyr Change of use the former VOSA testing station to form a Timber and Builders Merchants;

BRYN TEG CARAVAN PARK, Llanrug, Caernarfon, Gwynedd, LL55 4RF

Gwaith i goed sydd yn destun gorchymyn gwarchod coed. Work on trees that is subject to a tree preservation order

9 Bro Gwystl, Y Ffôr, Pwllheli, Gwynedd, LL53 6UJ

Estyniad llawr cyntaf uwchben modurdy presennol. First floor extension above existing garage.

Pant Gwyn, Tudweiliog, Pwllheli, Gwynedd, LL53 8PE

Adeiladu estyniad i'r storfa slyri ar fferm Pant Gwyn / Build an extension to the slurry store on Pant Gwyn farm

HOLANDUS Lôn Sarn Bach, Abersoch, Pwllheli, Gwynedd, LL53 7EL

Ail gyflwyniad o gais C25/0359/39/DT a wrthodwyd ar gyfer ymestyn eiddo presennol / Re-submission of refused planning application C25/0359/39/DT to extend the existing property.

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

Cais i ryddhau amod 21 o ganiatâd cynllunio C22/0426/38/LL mewn perthynas a holl gyfnodau'r datblygiad yn ymwneud a chynllun monitro hir dymor ansawdd dwr a tir llygredig/ Application to discharge condition 21 on planning approval C22/0426/38/LL in relation to all phases of the development relating to a long term monitoring plan for water quality and land contamination.

GLYN MENAI DEMENTIA CARE CENTRE Ffordd Treborth, Treborth, Bangor, Gwynedd, LL57 2RQ

Cais i ryddhau amod 3 (Gwybodaeth Coedyddiaeth) o ganiatâd cynllunio C24/0237/25/LL ar gyfer dymchweliadau, newidiadau ac estyniadau Application to discharge condition 3 (Arboricultural Information) of planning permission C24/0237/25/LL for demolitions, alterations and extensions

MELANGELL England Road North, Caernarfon, Gwynedd, LL55 1HS

Codi estyniad deulawr i gefn ac ochr yr eiddo yn ogystal ag dymchwel modurdy a porth gan godi porth newydd. Erection of a two-story extension to the rear and side of the existing dwelling. The proposal also includes the demolition of an existing garage and porch.

FFERM HENDY Pant Road, Caernarfon, Gwynedd, LL54 5RL

Adeiladu pit silwair ar gyfer storio gwair / porthiant Construction of silage pit for the storage of grass/fodder.

Y Garth, Llanwnda, Caernarfon, Gwynedd, LL54 7YB

Codi estyniad deulawr i gefn yr eiddo. Erection of a two-storey extension to the rear of the property.

5 - 7 Bridge Street, Caernarfon, Gwynedd, LL55 1AB

Fasia Peiriant Arian Parod efo arwydd wedi ei oleuo. Arwydd uchaf heb ei oleuo. ATM fascia with illuminated "ATM" sign. Non illuminated top sign.

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 (B8) ynghyd a chyfarpar cysylltiol i gynnwys generaduron, peirianwaith, cyfarpar, is-orsaf(oedd), mynedfeydd, parcio ac ardaloedd gwasanaethu, gwaith draenio a peirianyddol gan gynnwys cysylltu ac ail-leoli gwasanaethau Outline application will all matters reserved for the demolition of existing buildings/structures, re-grading of land and erection of Class B8 data centre building(s) with all associated back-up generators, plant, equipment, sub-station(s), accesses, parking and servicing areas, drainage and engineering works, including services diversion/connection.

Zone 7 Bryn Cegin Park, Llandygai, Gwynedd, LL57 4BG

Cymeradwyaeth manylion a gedwir yn ôl gan amodau 3 (Tirlunio), 5 (Deunyddiau Allanol), 7 (Gwelliannau Ecoleg), 8 (Draenio Budr) a 10 (Draeniad ar Draws y Safle) o ganiatâd cynllunio cyf. C23/0849/16/LL ar gyfer adeiladu unedau diwydiannol newydd Approval of details reserved by conditions 3 (Landscaping), 5 (External Materials), 7 (Ecology Improvements), 8 (Foul Drainage) & 10 (Drainage Across the Site) of planning permission ref. C23/0849/16/LL for c onstruction of new industrial units

ZONE 7 Bryn Cegin Park, Llandygai, Gwynedd, LL57 4BG

Cymeradwyaeth manylion a gedwir yn ôl gan amodau 3 (Tirlunio), 5 (Deunyddiau Allanol), 7 (Gwelliannau Ecoleg), 8 (Draenio Budr) a 10 (Draeniad ar Draws y Safle) o ganiatâd cynllunio cyf. C23/0850/16/LL ar gyfer adeiladu unedau diwydiannol newydd Approval of details reserved by conditions 3 (Landscaping), 5 (External Materials), 7 (Ecology Improvements), 8 (Foul Drainage) & 10 (Drainage Across the Site) of planning permission ref. C23/0850/16/LL for c onstruction of new industrial units

5 - 7 Bridge Street, Caernarfon, Gwynedd, LL55 1AB

Gosod Peiriant Arian Parod i'w osod trwy ffenestr flaen siop i'r chwith o ddrysau mynediad fel gosodiad trwy wydr. Proposed installation of an ATM to be installed through the shopfront window to the left of the entrance doors as a through glass installation