Planning applications in Ystrad Mynach
Last application update 25 Sept 2026
See what's happening with planning in Ystrad Mynach: 1305 planning applications tracked so far.
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Status breakdown
Other (49)
- Granted with conditions48
- Unresolved1
Latest notices
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12 Hillside Terrace Tredomen Hengoed CF82 7BT
UndecidedCarry out tree works on G1,G2, T1 & T2
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Fairbank Park Lane Tredomen Hengoed CF82 7BX
UndecidedDischarge conditions 03 (Biodiversity) and 04 (Roof tiles) of planning consent 26/0357/HH(Replace existing profiled sheeting flat roof on garage with new…
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Gelliargwellt Uchaf Farm Gelligaer Road Gelligaer Hengoed CF82 8FY
GrantedInstall a cable, transformer unit and associated works with the cable run being provided between Gellargwellt Uchaf Farm and Tredomen Business Park
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Berth Gron Tydu Road Nelson Treharris CF46 6PH
UndecidedConvert attic within the single storey wing of dwelling incorporating a raised ridge height and dormer extension(s); erect orangery; erect balcony and…
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Land To Rear Of 2 High Street Nelson Treharris CF46 6EU
UndecidedDemolish masonry wall and erect 4 No apartments and associated works
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21 Heol Isaf Nelson Treharris CF46 6NS
GrantedDemolish existing rear conservatory and detached garage and construct new single storey rear extension
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161 Gelligaer Road Cefn Hengoed Hengoed CF82 7HH
UndecidedVary condition 01 (Full - time to commence dev) of planning consent 21/0760/FULL (Erect single storey side extension) to have an additional 5 years to commence…
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2 Farm Close Tir-y-berth Hengoed CF82 8BF
UndecidedConvert existing garage to living accommodation
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Glyngaer Farm Glyngaer Road Glyn-gaer Gelligaer Hengoed CF82 8FJ
GrantedDischarge conditions 04 (Biodiversity strategy), 05 (Tree Protection Plan) and 06 (Landscaping Scheme) of planning consent 25/0720/HH (Erect two storey side…
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Mixit Concrete Services Ltd Unit 8 South Road Penallta Industrial Estate Penallta Hengoed CF82 7ST
GrantedErect a 3 bay vehicle servicing building for ancillary purposes to maintain and service volumetric concrete lorries and on-site vehicles
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2 Ashgrove Hengoed CF82 7JN
GrantedErect two storey rear extension
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5 - 7 Bedwlwyn Road Ystrad Mynach Hengoed CF82 7AA
UndecidedSubdivide existing retail unit to two seperate shop units, replace shop fronts and associated external and internal works
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3 Heol Morien Nelson Treharris CF46 6JA
RefusedErect first floor rear extension
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32 Mountain Way Nelson Treharris CF46 6NY
GrantedObtain a Lawful Development Certificate to establish that the side extension was substantially completed more than 4 years prior to the submission of this…
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90 Heol Tasker Nelson Treharris CF46 6JB
GrantedErect two-storey side extension with associated external works
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St Margarets Old Church Lane Maesycwmmer Hengoed CF82 7SE
RefusedFell conifers x 2, rear garden right hand boundary to 1ft above fence (Tree Preservation Order 76/73/MCC)
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St Margarets Old Church Lane Maesycwmmer Hengoed CF82 7SE
RefusedFell conifers x 2, rear garden right hand boundary to 1ft above fence (Tree Preservation Order 76/73/MCC)
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Llanfabon Inn Cilfynydd Road To Pant-du Road Llanfabon Treharris CF46 6PG
RefusedRetain the siting of two containers for domestic purposes and one container for a dog grooming unit within rear garden
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Llanfabon Inn Cilfynydd Road To Pant-du Road Llanfabon Treharris CF46 6PG
RefusedRetain the siting of two containers for domestic purposes and one container for a dog grooming unit within rear garden
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ALDI Mafon Road Nelson Treharris CF46 6PE
UndecidedVary condition 24 (Hours - delivery) of planning consent 24/0696/NCC (Vary condition 28 (Hours - delivery) of planning consent 24/0254/FULL (Demolish existing…
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33 Heol Tasker Nelson Treharris CF46 6JB
UndecidedPart demolish existing garage and erect a single storey extension
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Perfect Nails Unit 8 4 - 8 Penallta Road Ystrad Mynach Hengoed CF82 7AP
GrantedErect side/rear extension to existing ground floor commercial premises
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Ty Ein Teulu 4A Park Road Maesycwmmer Hengoed CF82 7QA
GrantedVary condition 07 of planning consent P/03/1416 (Construct residential dormer bungalow) to non-opening obscure glass windows in side elevation
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Lucky Strike Amusements 15 Penallta Road Ystrad Mynach Hengoed CF82 7AP
UndecidedChange the use of the ground floor premises from Amusement Centre to residential
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Land Within Curtilage Of 44 Brynavon Terrace Hengoed CF82 7NA
UndecidedDischarge conditions 06 (Parking materials) 09 (Hard and Soft Landscaping) and 10 (Hedgerow protection) of planning consent 26/0179/FULL (Erect 2 No. 2.5…
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85 High Street Nelson Treharris CF46 6HA
UndecidedDemolish existing single storey rear extension and erect a two storey side extension and single storey rear extension
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Llanfabon Infant School Bryncelyn Nelson Treharris CF46 6HL
GrantedDischarge condition 18 (Travel Plan) of planning consent 23/0452/LA (Erect two storey extension with single storey link and freestanding single storey…
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Brynela Llwyncelyn Terrace Nelson Treharris CF46 6HF
RefusedObtain a Lawful Development Certificate for existing use of stables
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29 Tawelfan Nelson Treharris CF46 6EH
GrantedVary condition 02 (Approved Documents) of planning consent 25/0235/HH (Erect two storey side and single storey rear extension) to amend plans
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15 Rowan Close Nelson Treharris CF46 6EN
RefusedErect two storey rear extension and side garage extension
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How to comment on a planning application in Ystrad Mynach
Anyone can have their say on a planning application in Ystrad Mynach. Find the application on the Caerphilly 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.
Caerphilly is the local planning authority responsible for deciding applications in Ystrad Mynach. 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.
Nearby areas
Planning applications in the towns nearest here, including neighbouring council areas.
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