Planning applications in Mountain Ash
Last application update 18 Jul 2026
See what's happening with planning in Mountain Ash: 415 planning applications tracked so far.
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Status breakdown
Other (5)
- Withdrawn5
Latest notices
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Land To The Rear Of 7 Bron-y-Deri Mountain Ash
GrantedAsh tree, side prune to clear electrical conductors
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Glassbrook Field Glasbrook Terrace Penrhiwceiber Mountain Ash Rhondda Cynon Taf CF45 3SY
GrantedProposed siting and conversion of shipping container into a functioning men's mental health hub, construction of decking.
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Wasteland Behind The Cresselly Arms Cardiff Road Mountain Ash
GrantedSide prune lime tree and remove overhang of National Grid apparatus.
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Wasteland Behind The Cresselly Arms Cardiff Road Mountain Ash
GrantedSide prune lime tree and remove overhang of National Grid apparatus.
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Gethin Woodland Centre A470 Pentrebach To Rhydycar Northbound Abercanaid Merthyr Tydfil CF48 1YZ
GrantedTo resurface the uplift track that currently serves the park in a tarmac finish.
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25 Bron-y-deri Mountain Ash Rhondda Cynon Taf CF45 4LL
UndecidedWorks to trees subject to a TPO. Crown pruning of one Oak tree and the removal of one dead Ash tree.
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Plas Y Felin Cefnpennar Road Cefnpennar Mountain Ash Rhondda Cynon Taf CF45 4EE
UndecidedProposed increase in roof height of existing garage to facilitate ancillary home office accommodation within the roof space with rooflights, together with the…
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Land Opposite Nixons Workingmens Club Oxford Street Mountain Ash Rhondda Cynon Taf CF45 3HD
UndecidedProposed erection of 28 affordable apartments together with associated parking, landscaping, pedestrian access and external works.
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Land At The Pavilions, To The South Of Darran Road, Mountain Ash
GrantedDischarge of Condition 7 Contamination Management Scheme of planning permission 24/0657/FUL (Updated Geotechnical and Geoenvironmental Report Rec. 18/07/25)…
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Woodland On Aberffrwd Road Mountain Ash
UndecidedSide prune oak tree back, height reduce hazel
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Forest View 30 Railway Terrace Penrhiwceiber Mountain Ash Rhondda Cynon Taf CF45 3ST
GrantedProposed appointment-only smartphone repair service within a residential dwelling.
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The Napiers Hotel 76 High Street Mountain Ash Rhondda Cynon Taf CF45 3LD
GrantedConversion of former skittle alley to two self contained Airbnb's.
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3 Clos Afon Abercwmboi Aberdare Rhondda Cynon Taf CF44 6BF
GrantedProposed change of use of waste land to garden curtilage.
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Former St Johns Baptist Church Clarence Street Mountain Ash Rhondda Cynon Taf
GrantedAmend wording of Conditions 4 & 8 to adjust trigger for submission of information as well as provide information to enable conditions to be discharged.
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Land To The West Of Hawthorn Terrace Perthcelyn
GrantedDischarge of conditions 12 (Contamination) and 13 (Validation) of previously approved planning application 24/0062/FUL for the development of 9 dwellings,…
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40 Sierra Pines Mountain Ash Rhondda Cynon Taf CF45 3DS
GrantedVariation of condition 7 and removal of conditions 5 and 6 of previous permission 25/1064/FUL
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98 Bryn Ifor Mountain Ash Rhondda Cynon Taf CF45 3AB
GrantedCreate parking area to front with associated retaining structure.
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LAND AT TIR-Y-GELLI FARM, YNYSYWBWL, PONTYPRIDD, CF37 3PG
GrantedThe intention is to make a planning application for full planning permission for the construction, operation, maintenance and decommissioning of a ground…
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69 Forest View Mountain Ash Rhondda Cynon Taf CF45 3DU
UndecidedProposed demolition of existing garage and rebuilding with bedroom over.
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Ysgubor Fawr Farm Tir Y Gelli Gelli-wrgan Road Mountain Ash Rhondda Cynon Taf CF37 3PG
UndecidedProposed tipping and recycling operation (Retrospective) (Amended / Additional Drawings and Noise Report received 02/07/2026).
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4 Gwernifor Street Mountain Ash Rhondda Cynon Taf CF45 3NA
UndecidedThe works include; raising the rear garden ground level, raising a lean to roof to a flat roof and the addition of a balcony area. (retrospective) (Amended…
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18 Lon-y-felin Cefnpennar Mountain Ash Rhondda Cynon Taf CF45 4ES
UndecidedTwo storey rear extension
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36 Bro Deg Cwm-bach Aberdâr Rhondda Cynon Taf CF44 0HA
GrantedExtension to the residential curtilage of No. 36 Bro Deg, including the extension of an existing garage and its change of use to a granny annexe (Amendment to…
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8 Meadow Close Mountain Ash Rhondda Cynon Taf CF45 3DN
GrantedProposed single-storey rear extension, with the demolition and relocation of the existing garage (additional plans received 15/10/2025)
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CKR Furniture Frames Limited Cardiff Road Mountain Ash Rhondda Cynon Taf CF45 4EY
GrantedChange of use from furniture store to gym
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Abercwmboi Recreation Ground John Street Abercwmboi Aberdare Rhondda Cynon Taf
GrantedInstallation of a Prefabricated Modular Building.
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6 Middle Row Cwmpennar Mountain Ash Rhondda Cynon Taf CF45 4DN
GrantedSingle storey rear extension.
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6 Middle Row Cwmpennar Mountain Ash Rhondda Cynon Taf CF45 4DN
GrantedSingle storey rear extension.
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Bryngolwg Llanwonno Road Mountain Ash Rhondda Cynon Taf CF45 3NE
GrantedDischarge of Conditions 3 (Materials), 4 (Boundary Treatments), 7 (Drainage), 8 (Structural Calculations) & 10 (Bat/bird bricks/boxes) of planning permission…
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Elim Church Knight Street Mountain Ash Rhondda Cynon Taf
GrantedEmergency works package to stabilise the existing church and to mitigate the risk to the adjoining property following partial roof collapse. Works will include…
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How to comment on a planning application in Mountain Ash
Anyone can have their say on a planning application in Mountain Ash. Find the application on the Rhondda planning authority's public-access portal using the reference number above, then submit a comment before the consultation deadline. Comments are usually limited to planning matters such as overlooking, loss of light, traffic, noise and the character of the area.
Rhondda is the local planning authority responsible for deciding applications in Mountain Ash. Town Crier mirrors the public record so you can keep track of what is happening near you, but the council remains the authoritative source and the place to submit formal comments.
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