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Planning applications in LL17

We hold 90 planning applications for the LL17 postcode area, 18 of them submitted in the past year. 93% of decided applications here were approved. A decision typically takes 59 days. The area is covered by Denbighshire.

90
applications held
18
in the past year
93%
approved
59 days
median decision

Councils covering LL17

Denbighshire (90)

Recent applications in LL17

Pending
Medium
EIA-Screening
13 Apr 202646/2026/0176/EIA-SCR
FORMER PILKINGTONS SITE Glascoed Road, St Asaph, DenbighshireDenbighshire

Cais am Farn Sgrinio ar gyfer datblygu canolfan hyfforddi tan, pencadlys a storfa logisteg / Screening Opinion Request for the development of a fire training centre, headquarters, and logistic store

Permitted
Non-Material Amendment
24 Mar 202646/2026/0149/NMA
BOD HAULOG The Roe, St Asaph, Denbighshire, LL17 0LYDenbighshire

Diwygiadau i driniaethau ffin, wal frics flaen, safleoedd plotiau, cynlluniau parcio a phalmentydd, storfa biniau fflat a deunyddiau allanol a gyflwynwyd mewn perthynas a chais rhif 46/2025/0047 (diwygiad anfaterol) / Amendments to boundary treatments, front brick wall, plot positions, parking and paving layouts, apartment bin store and external materials submitted in relation to application code no. 46/2025/0047 (non-material amendment)

Pending
Full Planning Application
9 Mar 202646/2026/0104/PF
Green Gates Cwttir Lane, St Asaph, Denbighshire, LL17 0LEDenbighshire

Codi adeilad Hwb Bioamrywiaeth a gwaith cysylltiedig (Cam 4) / Erection of a Biodiversity Hub building and associated works (Phase 4)

Pending
Small
Tree Preservation Order Application
18 Feb 202631/2026/0083/TP
Royal National Lifeboat Institution, Unit 9 Ffordd Richard Davies, St Asaph Business Park, St Asaph, Denbighshire, LL17 0LJDenbighshire

Torri llwyni a choed sy'n gor-hongian wrth y fynedfa yn amodol ar Orchymyn Cadw Coed / Cut back overhanging shrubs and trees at entrance subject to a Tree Preservation Order

Pending
Full Planning Application
12 Feb 202647/2026/0073/PF
Bryn Farm, Tremeirchion, St Asaph, Denbighshire, LL17 0UNDenbighshire

Adeiladu lagwn storio maetholion chlawdd pridd a gwaith cysylltiedig / Construction of an earth banked nutrient storage lagoon and associated works

Pending
Approval of Planning Condition
28 Jan 202646/2026/0043/AC
Former H M Stanley Hospital Upper Denbigh Road, St Asaph, Denbighshire,Denbighshire

Manylion y Datganiad Dull Adeiladu (amod 3) a'r Datganiad Mesurau Osgoi Rhesymol (RAMS) (amod 9) a gyflwynwyd yn unol a chais rhif 46/2024/0155 / Details of Construction Method Statement (condition 3) and Reasonable Avoidance Measures Statement (RAMS) (condition 9) submitted in accordance with application code no. 46/2024/0155

Pending
Householder Application
14 Jan 202647/2026/0017/HH
Pen Y Banc, Waen, St Asaph, Denbighshire, LL17 0DYDenbighshire

Codi estyniad unllawr i ochr yr annedd / Erection of a single storey extension to side of dwelling

Pending
Householder Application
9 Dec 202546/2025/0593/HH
7 Oak Close, St Asaph, Denbighshire, LL17 0DXDenbighshire

Codi estyniad cefn unllawr a gwaith cysylltiedig / Erection of a single storey rear extension and associated works

Withdrawn
Householder Application
28 Nov 202530/2025/0574/HH
14 Nant Y Patrick, St Asaph, Denbighshire, LL17 0BNDenbighshire

Codi estyniadau i flaen, ochr a chefn yr annedd a throsi llofft gyda dormer i'r cefn a balcon ôl / Erection of extensions to front, side and rear of dwelling and loft conversion with dormer to rear and rear balcony

Refused
Householder Application
26 Nov 202547/2025/0548/HH
Bodlonfa Lodge, Rhuallt, St Asaph, Denbighshire, LL17 0TTDenbighshire

Tynnu'r ystafell wydr bresennol a chodi estyniad ochr deulawr i'r annedd, gan gynnwys balconi Juliette i'r drychiad blaen a gwaith cysylltiedig (cynllun diwygiedig) / Removal of existing conservatory and erection of two-storey side extension to dwelling, including Juliette balcony to front elevation and associated works (amended scheme)

Pending
Medium
Major Development
25 Nov 202546/2025/0557/MD
Spring Gardens Holiday Park The Roe, St Asaph, Denbighshire, LL17 0HYDenbighshire

Estyniad i safle carafanau presennol a chreu 68 o seiliau ychwanegol ar gyfer carafanau statig, estyniad i ffordd fynediad fewnol gan gynnwys gosod bollardau cloadwy i atal mynediad i Ffordd Y Bryn, uwchraddio system draenio dwr wyneb a dwr budr a thirlunio cysylltiedig a gwella bioamrywiaeth / Extension to existing caravan site and creation of 68 additional bases for static caravans, extension to internal access road including installation of lockable bollards to prevent access to Mount Road, upgrade of surface water and foul drainage system and associated landscaping and biodiversity enhancement

Pending
Approval of Planning Condition
24 Nov 202546/2025/0551/AC
Bod Haulog The Roe, St Asaph, Denbighshire, LL17 0LYDenbighshire

Manylion y Datganiad Dull Coedyddiaeth a gyflwynwyd yn unol ag amod rhif 3 o ganiatad cynllunio rhif 46/2025/0047 / Details of Arboricultural Method Statement submitted in accordance with condition no. 3 of planning permission code no. 46/2025/0047

Pending
Full Planning Application
24 Nov 202547/2025/0547/PF
Bodlonfa Lodge, Rhuallt, St Asaph, Denbighshire, LL17 0TTDenbighshire

Defnyddio tir ar gyfer lleoli 4 pod glampio, mynediad a gwaith cysylltiedig / Use of land for the siting of 4. no glamping pods, access and associated works

Pending
Small
Trees in Conservation Areas Applications
12 Nov 202546/2025/0528/TC
Pen Y Bont Surgery The Roe, St Asaph, Denbighshire, LL17 0LUDenbighshire

Tynnu 1 goeden Acacia Ffug o fewn Ardal Gadwraeth Llanelwy / Removal of 1 no. False Acacia tree within St. Asaph Conservation Area

Pending
Householder Application
12 Nov 202546/2025/0524/HH
32 Bishops Walk, St Asaph, Denbighshire, LL17 0SUDenbighshire

Codi estyniadau, newidiadau a gwaith cysylltiedig / Erection of extensions, alterations and associated works

Pending
Full Planning Application
31 Oct 202547/2025/0502/PF
Tafarn Y Waen, Waen, St Asaph, Denbighshire, LL17 0DYDenbighshire

Lleoli 5 cwt bugail a gwaith cysylltiedig / Siting of 5 no. shepherd huts and associated works

Pending
Medium
Major Development
29 Oct 202531/2025/0497/MD
National Grid Bodelwyddan Substation Glascoed Road, St Asaph, Denbighshire,Denbighshire

Estyniad i is-orsaf bresennol, ailosod ffens allanol a gwaith cysylltiedig / Extension to existing substation, replacement of external fence and associated works

Permitted
Approval of Planning Condition
26 Sept 202546/2025/0431/AC
Talardy The Roe, St Asaph, Denbighshire, LL17 0HYDenbighshire

Manylion gwella bioamrywiaeth a gyflwynwyd yn unol ag amod rhif 2 o ganiatad cynllunio rhif 46/2025/0217 / Details of biodiversity enhancement submitted in accordance with condition no. 2 of planning permission code no. 46/2025/0217

Permitted
Certificate of Lawfulness for a Proposed Use / Development
10 Aug 202547/2025/0361/LP
Tyddyn Y Graig, Tremeirchion, St Asaph, Denbighshire, LL17 0URDenbighshire

Tystysgrif datblygiad cyfreithlon ar gyfer codi swyddfa ystafell ardd arfaethedig / Lawful development certificate for the proposed erection of a garden room office

Permitted
Small
Tree Preservation Order Application
7 Aug 202546/2025/0359/TP
Talardy The Roe, St Asaph, Denbighshire, LL17 0HYDenbighshire

Torri 1 goeden leim sy'n destun Gorchymyn Cadw Coed / Felling of 1 no. Lime tree subject to a Tree Preservation Order

Refused
Full Planning Application
6 Aug 202546/2025/0357/PF
Land Adjacent To Cornel Lower Denbigh Road, St Asaph, Denbighshire,Denbighshire

Adeiladu mynediad cerbydau newydd / Construction of a new vehicular access

Permitted
Householder Application
30 Jun 202530/2025/0291/HH
The Brambles Allt Goch, St Asaph, Denbighshire, LL17 0BPDenbighshire

Codi porth mynediad blaen, estyniad i'r ystafell wydr bresennol a darparu to brig newydd i'r ystafell wydr estynedig / Erection of front entrance porch, extension to existing conservatory and provision of new pitched roof to extended conservatory

Permitted
Approval of Planning Condition
23 Jun 202547/2025/0283/AC
8 Dyffryn Teg, Rhuallt, St Asaph, Denbighshire, LL17 0TADenbighshire

Manylion y ddarpariaeth ar gyfer ystlumod sy'n clwydo ac adar sy'n nythu; Datganiad Dull Mesurau Osgoi Rhesymol; ac Archwiliad Cydymffurfiaeth Ecolegol a gyflwynwyd yn unol ag amodau rhifau 3, 4 a 5 o ganiatad cynllunio rhif 47/2024/1385 / Details of provision for roosting bats and nesting birds; Reasonable Avoidance Measures Method Statement; and Ecological Compliance Audit submitted in accordance with condition no's 3, 4 and 5 of planning permission code no. 47/2024/1385

Permitted
Householder Application
6 Jun 202530/2025/0257/HH
Birchdene, 4 Llanerch Crossing, St Asaph, Denbighshire, LL17 0BEDenbighshire

Codi estyniad unllawr i gefn yr annedd / Erection of a single storey extension to rear of dwelling

Withdrawn
Householder Application
19 May 202546/2025/0231/HH
Bryn Mair Mount Road, St Asaph, Denbighshire, LL17 0DFDenbighshire

Codi dormer to fflat i ddrychiadau ochr a chefn a gwaith cysylltiedig / Erection of a flat roof dormer to side and rear elevations and associated works

Permitted
Full Planning Application
28 Apr 202546/2025/0202/PF
Long View Upper Denbigh Road, St Asaph, Denbighshire, LL17 0RRDenbighshire

Newid defnydd modurdy a storfa bresennol i ffurfio anecs un ystafell wely i'w ddefnyddio'n ategol i'r prif dŷ (Long View) a gwaith cysylltiedig / Change of use of existing garage and store to form a one bedroom annex to be used ancillary to the main dwelling (Long View) and associated works

Refused
Householder Application
28 Apr 202547/2025/0200/HH
Bodlonfa Lodge, Rhuallt, St Asaph, Denbighshire, LL17 0TTDenbighshire

Cael gwared ar ystafell wydr bresennol a chodi estyniad ochr deulawr i annedd, gan gynnwys balconi Juliette ar y drychiad blaen a gwaith cysylltiedig / Removal of existing conservatory and erection of 2 storey side extension to dwelling, including Juliette balcony to front elevation and associated works

Pending
Full Planning Application
28 Mar 202547/2025/0141/PF
Land South Of Roman Road, Rhuallt, St Asaph, Denbighshire,Denbighshire

Codi sgubor amaethyddol ar gyfer storio cynnyrch, peiriannau a phorthiant. Ffurfio llawr caled a thrac mynediad a gwaith cysylltiedig. (Ail-gyflwyno) / Erection of agricultural barn for the storage of produce, machinery and fodder. Formation of hardstanding and access track and associated works. (Re-submission)

Permitted
Approval of Planning Condition
26 Mar 202546/2025/0154/AC
Bod Haulog The Roe, St Asaph, Denbighshire, LL17 0LYDenbighshire

Manylion Cynllun Draenio Dwr Budr a gyflwynwyd yn unol ag amod rhif 10 o ganiatad cynllunio amlinellol rhif 46/2019/0806 / Details of Foul Water Drainage Scheme submitted in accordance with condition no. 10 of outline planning permission code no. 46/2019/0806

Permitted
Approval of Planning Condition
26 Mar 202546/2025/0153/AC
Bod Haulog The Roe, St Asaph, Denbighshire, LL17 0LYDenbighshire

Manylion y Datganiad Dull Adeiladu a'r Dull Mynediad a gyflwynwyd yn unol ag amodau rhif 8 a 9 o ganiatad cynllunio amlinellol rhif 46/2019/0806 / Details of Construction Method Statement and Means of Access submitted in accordance with condition no's 8 and 9 of outline planning permission code no. 46/2019/0806

Permitted
Approval of Planning Condition
26 Mar 202546/2025/0155/AC
Bod Haulog The Roe, St Asaph, Denbighshire, LL17 0LYDenbighshire

Manylion Darpariaeth ar gyfer ystlumod clwydo ac adar nythu a gyflwynwyd yn unol ag amod rhif 16 o ganiatad cynllunio amlinellol rhif 46/2019/0806 / Details of Provision for roosting bats and nesting birds submitted in accordance with condition no. 16 of outline planning permission code no. 46/2019/0806

Permitted
Certificate of Lawfulness for a Proposed Use / Development
20 Nov 202430/2024/1541/LP
14 Clwydian Park Avenue, St Asaph, Denbighshire, LL17 0BQDenbighshire

Tystysgrif datblygiad cyfreithlon ar gyfer estyniad unllawr arfaethedig i ochr yr annedd / Lawful development certificate for a proposed single storey extension to side of dwelling

Permitted
Non-Material Amendment
12 Nov 202447/2024/1539/NMA
Bryn Hafod, Rhuallt, St Asaph, Denbighshire, LL17 0THDenbighshire

Newidiadau i ddrychiad blaen, pharapetau a manylion ffenestri gyflwynwyd mewn perthynas a chais rhif 47/2023/0358 (diwygiad anfaterol) / Amendments to front elevation, parapets and window arrangements submitted in relation to application code no. 47/2023/0358 (non-material amendment)

Withdrawn
Full Planning Application
3 Oct 202446/2024/1458/PF
Cathedral Car Park Upper Denbigh Road, St Asaph, Denbighshire,Denbighshire

Gosod 'Locer Prydau Bwyd' yng nghornel y maes parcio / Installation of 'Meal Locker' in the corner of the car park

Permitted
Householder Application
16 Sept 202431/2024/1422/HH
Cefn Home Farm, Cefn, St Asaph, Denbighshire, LL17 0EYDenbighshire

Codi estyniadau a newidiadau i'r annedd gan gynnwys ardal patio a godwyd a gwaith cysylltiedig / Erection of extensions and alterations to dwelling including raised patio area and associated works

Permitted
Non-Material Amendment
13 Sept 202446/2024/1383/NMA
St Asaph Cathedral High Street, St Asaph, Denbighshire, LL17 0RDDenbighshire

Newidiadau i osodiad paneli PV cymeradwy wedi'u cyflwyno yn unol â 46/2015/1242 (Diwygiad anfaterol) / Alterations to approved PV panel layout submitted in accordance with 46/2015/1242 (Non Material Amendment)

Permitted
Certificate of Lawfulness for a Proposed Use / Development
30 Aug 202447/2024/1393/LP
Coed Duon, Tremeirchion, St Asaph, Denbighshire, LL17 0UHDenbighshire

Tystysgrif datblygiad cyfreithlon ar gyfer lleoli carafán sefydlog o fewn y cwrtil i'w defnyddio fel llety byw atodol / Lawful development certificate for the proposed siting of a static caravan within the curtilage to be used as ancillary living accommodation

Permitted
Householder Application
21 Aug 202447/2024/1385/HH
8 Dyffryn Teg, Rhuallt, St Asaph, Denbighshire, LL17 0TADenbighshire

Codi ffenestri dormer i'r tu blaen a'r cefn i ddarparu llety byw ychwanegol o fewn y gofod to (ailgyflwyno) / Erection of dormer windows to front and rear to provide additional living accommodation within the roof space (resubmission)

Permitted
Medium
Major Development
8 Aug 202446/2024/1200/PF
Green Gates Cwttir Lane, St Asaph, Denbighshire, LL17 0LEDenbighshire

Dymchwel adeiladau presennol, newid defnydd tir o dir amaethyddol i warchodfa natur newydd a chreu cynefinoedd yn cynnwys adfer pyllau presennol, creu pyllau newydd, creu ardal wlyptir ger dau gwrs dŵr bach a chreu coetir ac ardaloedd cynefinoedd glaswelltir, adeiladu llwybr caniataol a gwaith peirianyddol i greu man gwylio uwch ynghyd â gwaith cysylltiedig / Demolition of existing buildings, change of use of land from agricultural land to a new nature reserve and habitat creation comprising of the restoration of existing ponds, the creation of new ponds, the creation of a wetland area adjacent to two small watercourses and creation of woodland and grassland habitat areas, construction of a permissive pathway and engineering works to create a raised viewing area together with associated works

Permitted
Section 73A (Continuation/ Retention)
8 Aug 202447/2024/1341/PC
Tyn Yr Ardd, Rhuallt, St Asaph, Denbighshire, LL17 0TTDenbighshire

Cadw gwaith cloddio ac ailbroffilio'r tir; ffurfio llawr caled a mynedfa, a ffurfio mynedfa i briffordd (cais ôl-weithredol) / Retention of excavation and reprofiling of land; formation of hardstanding and accessway, and formation of means of access to a highway (retrospective application)

Permitted
Section 73 (Removal or Variation of Condition)
2 Aug 202446/2024/1177/PS
Kentigern Hall High Street, St Asaph, Denbighshire, LL17 0RFDenbighshire

Dileu amod rhif 2 o ganiatad cynllunio rhif 2/APH/492/83 sy'n cyfyngu ar y defnydd o'r cartref i ganiatau darpariaeth byw lled-annibynnol a chymorth i bump o ddinasyddion ifanc / Removal of condition no. 2 of planning permission code no. 2/APH/492/83 which restricts the use of the home to allow the provision of supported semi-independent living for five young citizens

Permitted
Small
Tree Preservation Order Application
22 Jul 202446/2024/1285/TP
7 Oak Close, St Asaph, Denbighshire, LL17 0DXDenbighshire

Lleihau uchder a chodi canopi 2 coed derw wedi'u rhifo T7 a T8 ar y cynllun sydd ynghlwm wrth Fwrdeistref Rhuddlan Gorchymyn Cadw Coed Rhif 2, 1993 / Reduction of height and raising of canopy of 2 oak trees numbered T7 & T8 on the plan annexed to the Borough of Rhuddlan Tree Preservation Order No. 2, 1993

Permitted
Small
Trees in Conservation Areas Applications
15 May 202446/2024/1175/TC
The Coach House Mount Road, St Asaph, Denbighshire, LL17 0DBDenbighshire

Gwaith amrywiol i sawl coeden a chael gwared ar un sycamorwydden o fewn ardal gadwraeth Waen / Various works to several trees and removal of one sycamore within St Asaph conservation area

Permitted
Householder Application
25 Apr 202447/2024/1125/HH
Brynbella Stables, Bryn Bella, Tremeirchion, St Asaph, Denbighshire,Denbighshire

Gosod goldeau to a gwaith cysylltiedig / Installation of rooflights and associated works

Permitted
Listed Building Consent
25 Apr 202447/2024/1126/LBC
Brynbella Stables, Bryn Bella, Tremeirchion, St Asaph, Denbighshire,Denbighshire

Gosod ffenestri to a gwaith cysylltiedig (cais Adeilad Rhestredig) / Installation of rooflights and associated works (Listed Building application)

Permitted
Non-Material Amendment
5 Apr 202446/2024/1069/NMA
Welsh Ambulance Service Upper Denbigh Road, St Asaph, Denbighshire, LL17 0RSDenbighshire

Newidiadau i plotiau 111 a 112 i newid proffil to talcen i broffil to talcennog a gyflwynwyd mewn perthynas a chais rhif 46/2023/0480 (diwygiad anfaterol) / Amendments to plots 111 & 112 to change gable roof profile to a hipped roof profile submitted in relation to application no. 46/2023/0480 (non-material amendment)

Permitted
Approval of Planning Condition
27 Mar 202447/2024/1051/AC
Tan Yr Onnen, Waen, St Asaph, Denbighshire, LL17 0DUDenbighshire

Manylion goleuadau allanol, tirlunio a chynllun gwella bioamrywiaeth a gyflwynwyd yn unol ag amodau rhif 4, 5 a 7 o ganiatad cynllunio rhif 47/2023/0254 / Details of external lighting, landscaping and scheme for biodiversity enhancement submitted in accordance with condition no's 4, 5 and 7 of planning permission code no. 47/2023/0254

Withdrawn
Listed Building Consent
27 Mar 202447/2024/1054/LBC
St Beunos College, Tremeirchion, St Asaph, Denbighshire, LL17 0ASDenbighshire

Codi ystafell weddi (cais Adeilad Rhestredig) / Erection of a prayer room (Listed Building application)

Permitted
Approval of Planning Condition
22 Mar 202446/2024/1045/AC
Welsh Ambulance Service Upper Denbigh Road, St Asaph, Denbighshire, LL17 0RSDenbighshire

Manylion deunyddiau wal a tho (amod 3); datganiad dull adeiladu (amod 4); ffyrdd a charthffosydd (amod 5); manylion cwrbyn bywyd gwyllt/gosodiad (amod 10); a chynllun goleuo allanol (amod 12) a gyflwynwyd mewn perthynas â chais rhif 46/2023/0480 / Details of wall and roof materials (condition 3); construction method statement (condition 4); roads and sewers (condition 5); wildlife kerb detail/layout (condition 10); and external lighting scheme (condition 12) submitted in relation to application no. 46/2023/0480

Permitted
Small
Listed Building Consent
31 Jan 202446/2024/0083
Red Lion House, Gemig Street, St Asaph, Ll17 0RyDenbighshire

Gosod pwynt gwefru cerbydau trydan (Cais Adeilad Rhestredig) / Installation of electric vehicle charging point (Listed Building Application)