Planning applications in Ystrad Mynach
Last application update 7 Aug 2026
See what's happening with planning in Ystrad Mynach: 736 planning applications tracked so far.
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Status breakdown
Other (21)
- Granted with conditions20
- Unresolved1
Latest notices
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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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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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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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1 Ashgrove Terrace Nelson Treharris CF46 6LR
GrantedErect a single storey side extension and associated works including 2m boundary fence
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91 St Anne's Gardens Maesycwmmer Hengoed CF82 7QQ
GrantedObtain a Lawful Development Certificate for proposed single storey rear extension
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Fairbank Park Lane Tredomen Hengoed CF82 7BX
GrantedReplace existing profiled sheeting flat roof on garage with new pitched roof with recessed integrated solar panels
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59 Heathlands Ystrad Mynach Hengoed CF82 7NZ
GrantedDischarge condition 07 (Landscaping Scheme) of planning consent 26/0074/HH (Erect one and a half storey side extension, single storey rear extension, extend…
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Cilfynydd Substation Craig-evan-leyshon Common Road Llanfabon
GrantedDischarge condition 11 (Noise Complaints) of planning consent 25/0243/FULL (Install and operate electrical infrastructure and associated infrastructure,…
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Mixit Concrete Services Ltd Unit 8 South Road Penallta Industrial Estate Penallta Hengoed CF82 7ST
UndecidedErect a 3 bay vehicle servicing building for ancillary purposes to maintain and service volumetric concrete lorries and on-site vehicles
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21 Heol Isaf Nelson Treharris CF46 6NS
UndecidedDemolish existing rear conservatory and detached garage and construct new single storey rear extension
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32 Mountain Way Nelson Treharris CF46 6NY
UndecidedObtain 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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53B Shingrig Road Nelson Treharris CF46 6DU
GrantedErect fire escape staircase and associated internal alterations
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24 Heol Isaf Nelson Treharris CF46 6NS
GrantedObtain Certificate of Lawful Proposed Development for proposed rear single storey extension
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Penbeili Farm Tydu Road Nelson Treharris CF46 6PH
GrantedObtain a Lawful Development Certificate for proposed side extension, rear extension(s), and a hip to gable roof alteration
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33 Valley View Cefn Hengoed Hengoed CF82 7JG
GrantedErect first floor rear extension
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PREMIER Unit A 18 Bedwlwyn Road Ystrad Mynach Hengoed CF82 7AD
RefusedConvert and extend first floor to create 4 No. flats and 2 No. A2 use units; to include associated external alterations and off-street parking
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Caerphilly Borough Mind 36 Penallta Road Ystrad Mynach Hengoed CF82 7AN
RefusedChange the use of disused office into 5 bed HMO
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7 Peregrine Close Penallta Hengoed CF82 6AZ
GrantedConvert loft with additional side facing dormers
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41 Hengoed Crescent Cefn Hengoed Hengoed CF82 7HG
GrantedChange the use from a garden outbuilding to a production unit for a bakery
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4 Tai Fforest Cottages Caerphilly Road Nelson Treharris CF46 6PP
UndecidedRetain and complete replacement dwelling, new detached garage and associated works
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The Lord Nelson Inn 4 Commercial Street Nelson Treharris CF46 6ND
GrantedErect single storey rear extension to provide additional dining area, toilets and baby changing facilities and construct rear entrance porch
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Greggs 15 Bedwlwyn Road Ystrad Mynach Hengoed CF82 7WS
GrantedErect non illuminated free standing A board sign
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90 Heol Tasker Nelson Treharris CF46 6JB
UndecidedErect two-storey side extension with associated external works
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Land Within Curtilage Of 44 Brynavon Terrace Hengoed CF82 7NA
GrantedErect 2 No. 2.5 storey semi-detached dwellings
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2 Ashgrove Hengoed CF82 7JN
UndecidedErect two storey rear extension
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Land At Grid Ref 313987 195625 Winding Wheel Lane Penallta
GrantedSeek approval of a non-material amendment to planning consent 25/0599/FULL (Construct 33 affordable dwellings and retail unit with appropriate green…
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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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