Council hub · Wales
Merthyr Tydfil planning applications
701 applications. 92% approved. 48 days to decide.
As of October 2026, PlanIndex holds 701 planning applications from Merthyr Tydfil. 235 were decided in the trailing 12 months, with 92% of clear-cut outcomes approved.
Merthyr Tydfil: 251 applications received in the last year, 235 decisions published.
Merthyr Tydfil takes a median of 49 days to decide a planning application. See how that compares.
All applications
Newest first · page 1 of 15
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P/26/0236 Awaiting decision
20C Alma Street Dowlais Merthyr Tydfil CF48 3RP
Change of use from 4 bedroom dwelling to 4 affordable self contained flats, to include rear extension and refurbishment works.
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P/26/0235 Awaiting decision
1 Patricia Close Fairview Terrace Twynyrodyn Merthyr Tydfil CF47 0RN
Detached garage, driveway and associated access and gates
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P/26/0234 Awaiting decision
57 Fell Street Treharris CF46 5HN
Erection of conservatory to rear elevation
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P/26/0232 Awaiting decision
Unit 5 Cyfarthfa Retail Park Swansea Road Merthyr Tydfil CF48 1HY
Erect 1 new fascia sign
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P/26/0229 Awaiting decision
Mill House Millfield Quakers Yard Treharris CF46 5LD
Proposed Replacement Conservatory/Garden Room, First-Floor En-Suite Extension and Associated Alterations
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P/26/0233 Awaiting decision
Land Opposite 1-17 Kingsley Terrace Aberfan Merthyr Tydfil
Discharge of condition 14 of P/22/0286 affordable housing
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P/26/0230 Awaiting decision
Joseph Parry's Cottage 4 Chapel Row Georgetown Merthyr Tydfil CF48 1BN
Variation of Condition 2 (approved plans) and removal of Condition 3 (method statement for ventilation system) of Listed Building Consent P/25/0308 to reflect changes to the ventilation system. (Listed Building Consent)
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P/26/0226 Awaiting decision
11 Tyntaldwyn Road Troedyrhiw Merthyr Tydfil CF48 4NG
Create front parking area with associated ground re-profiling works
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P/26/0231 Awaiting decision
38 High Street Merthyr Tydfil CF47 8DE
Redevelopment of vacant land to provide hotel accommodation and associated hospitality facilities, including erection of a three-storey building for guest accommodation with ground floor bar/restaurant facilities and ancillary spaces, formation of internal links to the retained Howfields Hotel, removal of temporary structural support works, external alterations and associated works. (Full)
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P/26/0225 Awaiting decision
Unit 4 Harlan Business Park Goat Mill Road Dowlais Merthyr Tydfil CF48 3TE
Change of use to part of ground floor to provide cafe and change of use to part of first floor to provide golf simulation facility.
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P/26/0228 Awaiting decision
Land Formerly Of Meadowsweet Farm High Street Trelewis Treharris CF46 6TB
Extension to existing agricultural building for agricultural storage
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P/26/0224 Awaiting decision
22 Cyfarthfa Mews Swansea Road Merthyr Tydfil CF48 1HZ
Change of use of land from commercial to residential use and construction of retaining walls
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P/26/0223 Awaiting decision
29 Andrews Close Heolgerrig Merthyr Tydfil CF48 1SS
Proposed first floor rear extension and garden room
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P/26/0227 Awaiting decision
Six Bells Inn Shoe Box Boutique Shop Heolgerrig Merthyr Tydfil CF48 1RP
Change of use from Beauticians (sui generis) to clinic (D1 use) to provide botox for aesthetic and medical purposes, skin care, ear care, and weight and hair loss treatments.
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P/26/0222 Awaiting decision
1 Milbourne Close Twynyrodyn Merthyr Tydfil CF47 0UH
Rear dormer extension
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P/26/0216 Awaiting decision
Joseph Parry's Cottage 4 Chapel Row Georgetown Merthyr Tydfil CF48 1BN
Partial discharge of condition 5 (method statement for installation of new kitchen) of planning permission P/25/0308 for the installation of a ventilation system and refurbishment of Joseph Parry Cottage including, sand blast floor and ceiling, decorate the walls, new rear door, new accessible toilet, new vinyl floor, refurbish all windows including secondary glazing and new re-lay flag stones
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P/26/0218 Awaiting decision
Unit E Pengarnddu Industrial Estate Dowlais Merthyr Tydfil CF48 2YF
Refurbish freestanding totem sign with replacement internally illuminated sign and repaint posts (Sign 1), one new non-illuminated directional sign on twin posts (Sign 2), one replacement non-illuminated directional sign on an existing single post (Sign 3), one new non-illuminated directional sign on twin posts (Sign 4), two new non-illuminated courier collection signs (Sign 5) and four new non-illuminated grocery collection signs (Sign 6).
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P/26/0219 Awaiting decision
Summerfield 8 Pontsarn Close Pontsarn Merthyr Tydfil CF48 2TW
Remove conservatory and chimney; remove and replace the roof including increasing the ridge height of the property; construct a two-storey front extension; install a balcony along the front elevation; and erect a two-storey side extension incorporating outdoor living space and balcony.
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P/26/0214 Awaiting decision
Former Treharris Rugby Club Perrott Street Treharris CF46 5ET
Non-material amendment to planning permission P/23/0080 involving changes to the internal layout and the position of windows.
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P/26/0215 Awaiting decision
Land To The North Of The Heads Of The Valleys Road Off Rhymney Common Road Dowlais Merthyr Tydfil
Discharge of Condition 12 (Grease trap details) of planning permission P/25/0265
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P/26/0213 Awaiting decision
22 Williamstown Merthyr Tydfil CF47 8PD
Demolish existing garage and shed and construct new detached garage
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P/26/0211 Status unknown
63 Brecon Rise Pant Merthyr Tydfil CF48 2EE
Discharge of conditions 3 (Landscaping), 7 (Boundary treatments) and 10 (public sewer diversion) of planning permission P/25/0253
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P/26/0212 Awaiting decision
Furnace Row Ash Road Troedyrhiw Merthyr Tydfil
Discharge of Condition3 of pllanning permission P/25/0199 Biodiversity
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P/26/0176 Status unknown
36 Berry Square Dowlais Merthyr Tydfil CF48 3AL
Erection of two storey side extension, and the repositioning of parking area and vehicular entrance.
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P/26/0208 Awaiting decision
Specsavers High Street Merthyr Tydfil CF47 8BY
Installation of additional 3 No. AC condensing units to flat roof services area.
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P/26/0209 Status unknown
Land At Six Bells Heolgerrig Merthyr Tydfil CF48 1TU
Discharge of conditions 3 (boundary Details), 4 (Landscaping Scheme) and 8 (Retaining Works) of planning permission P/25/0167 relating to a dwelling.
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P/26/0210 Awaiting decision
Land At Caersalem Chapel The Rise Pant Merthyr Tydfil
Demolition of the former Caersalem Chapel and the erection of 4 no. dwellings.
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P/26/0185 Awaiting decision
Travel Inn Duffryn Road Pentrebach Merthyr Tydfil CF48 4BB
Provision of Bin Store and repositioning of cycle store/hoops.
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P/26/0207 Status unknown
Land Adjacent To Lle Hyfryd Mount Pleasant Heolgerrig Merthyr Tydfil CF48 1RY
Discharge of condition 10 (site investigation and remediation) of planning permission P/24/0239
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P/26/0206 Awaiting decision
1 Vulcan Court Vulcan Road Merthyr Tydfil CF47 8LZ
Discharge of condition 3 of listed buildings consent ref P/26/0153 (replacement door and frame details)
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P/26/0201 Awaiting decision
32 High Street Cefn Coed Merthyr Tydfil CF48 2PG
Change of use of house to three flats
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P/26/0205 Awaiting decision
Land Adjacent To Penydarren Social Club Alexandra Avenue Tramroad Lane Penydarren Merthyr Tydfil CF47 9AF
The erection of a convenience store (Class A1) with associated parking, landscaping, and replacement parking provision to serve the adjacent social club.
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P/26/0204 Awaiting decision
Park View Bungalow Penyard Road Merthyr Tydfil CF47 0HL
New detached garage and store
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P/26/0203 Awaiting decision
Land To The North Of The Heads Of The Valleys Road Off Rhymney Common Road Dowlais Merthyr Tydfil CF48 2YG
Discharge of Condition 19 (boundary treatments) of planning permission P/25/0265
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P/26/0202 Awaiting decision
Ty Bryn Seion North Street Dowlais Merthyr Tydfil CF48 3SR
Non material amendment to planning permission P/24/0130 to change ecological mitigation from a 20mm fascia gap to 10 No. bat soffit boxes
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P/26/0161 Awaiting decision
Cefn Fforest Farm Twynygarreg Treharris CF46 5RN
Lawful Development Certificate for proposed assorted extensions and works
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P/26/0200 Awaiting decision
Joseph Parry's Cottage 4 Chapel Row Georgetown Merthyr Tydfil CF48 1BN
Discharge of condition 3 (method statement for installation of mechanical ventilation system) of planning permission P/25/0308 for the installation of a ventilation system and refurbishment of Joseph Parry Cottage including, sand blast floor and ceiling, decorate the walls, new rear door, new accessible toilet, new vinyl floor, refurbish all windows including secondary glazing and new re-lay flag stones
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P/26/0198 Awaiting decision
Land To The South Of Cyfarthfa Retail Park Swansea Road Merthyr Tydfil CF48 1HY
Non-material amendment to two EV charging spaces as standard parking spaces
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P/26/0197 Awaiting decision
Rear Of Six Bells Heolgerrig Merthyr Tydfil CF48 1RP
Construction of four detached houses and new access road
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P/26/0196 Awaiting decision
12 Fairview Terrace Twynyrodyn Merthyr Tydfil CF47 0RL
Rear infill single storey extension, raise existing rear extension roof, and new doors to side elevation. Construction of detached garden room.
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P/26/0194 Awaiting decision
114 High Street Merthyr Tydfil CF47 8AP
Change of use of ground floor to A3 use and 1st 2nd & 3rd floors to 2 self contained flats
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P/26/0195 Awaiting decision
Trefechan Nursery Rowan Rise Trefechan Merthyr Tydfil CF48 2EW
Demolition of existing nursery and erection of 4 No. three bedroom dwellings with access and parking
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P/26/0199 Awaiting decision
Deepdene Brewery Lane Cefn Coed Merthyr Tydfil CF48 2LP
Construct single storey extension to the side of the property
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P/26/0193 Awaiting decision
The Rose Retreat Spa Cyfarthfa Park Merthyr Tydfil CF47 8RE
Discharge of conditions 5 (historic environment mitigation) and 9 (Landscape and Ecological Management Plan) of planning permission P/26/0041
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P/26/0192 Awaiting decision
Quakers Yard Railway Station Taff Vale Estate Edwardsville Treharris CF46 5NJ
Variation of conditions 1 and 3 of permission P/24/0033 to amend the landscaping scheme and works to the platform.
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P/26/0191 Awaiting decision
6 Holford Street Cefn Coed Merthyr Tydfil CF48 2RN
First Floor Extension above existing ground floor extension.
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P/26/0190 Awaiting decision
1 St Marys Close Merthyr Tydfil CF47 8YS
Erect a storm porch to front elevation and replacement of roof over study area
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P/26/0189 Status unknown
National Grid Electricity Distribution South Wales Dowlais Grid Substation Pengarnddu Dowlais Merthyr Tydfil
Removal of the existing tower and installation of new tower with new antennas and transmission dishes, emergency back up generator, cable gantry, feeder cables and associated access track, etc.
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P/26/0188 Granted
32 Cilhaul Treharris CF46 5HT
Non-material amendment to planning permission P/25/0336 to re-position the first floor en-suite window from the side elevation to the rear elevation
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P/26/0187 Granted
4 Chapel Row Georgetown Merthyr Tydfil CF48 1BN
Discharge of condition 9 (biodiversity enhancement) of planning permission P/25/0308 for the installation of a ventilation system and refurbishment of Joseph Parry Cottage including, sand blast floor and ceiling, decorate the walls, new rear door, new accessible toilet, new vinyl floor, refurbish all windows including secondary glazing and new re-lay flag stones
Recent decisions
Data to October 2026
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P/25/0245 Granted
Land At Springfield Rise Treharris
Discharge of conditions 3 (Material Finishes) and condition 4 (Retaining Works) of planning permission P/22/0298 relating to a residential scheme.
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P/26/0182 Granted
Car Park Cyfarthfa Retail Park Swansea Road Merthyr Tydfil CF48 1HY
One freestanding non-illuminated directional sign
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P/26/0005 Granted
21 Winch Fawr Park Heolgerrig Merthyr Tydfil CF48 1TL
Outline application for up to two dwellings (all matters reserved)
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P/26/0181 Awaiting decision
Jah Jireh Care Home Heads Of The Valleys Road Merthyr Tydfil CF44 0LX
Variation of condition 4 of planning permission P/25/0196 to indicate the maximum number of bed spaces accommodated within the care home shall not exceed 56
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P/26/0173 Granted
148 High Street Merthyr Tydfil CF47 8DP
Vary of Condition 2 of planning permission P/24/0206 to allow for the increased depth of the rear extension to enable the incorporation of an internal lift
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P/26/0149 Granted
62 Twelfth Avenue Galon Uchaf Merthyr Tydfil CF47 9TD
Construct front driveway
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P/26/0131 Granted
Ty Bryn Seion North Street Dowlais Merthyr Tydfil CF48 3SR
5 No. Air Source Heat Pumps and timber fenced compound.
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P/26/0141 Granted
The Robins Nest A4060 Leos Roundabout To Mountain Hare Roundabout Southbound Merthyr Tydfil CF48 4AJ
Replace existing garage with new garage
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P/26/0170 Granted
Land Adjacent To Hillcrest And Mitchell Crescent Penydarren Merthyr Tydfil
Discharge of Condition 9 (Invasive Non-Native Species Strategy) of planning permission P/25/0223 relating to a residential development.
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P/26/0171 Refused
1 Milbourne Close Twynyrodyn Merthyr Tydfil CF47 0UH
Two storey rear extension incorporating a rear dormer.
The full record
Decisions between 2019 and 2026
PlanIndex holds 569 decisions from Merthyr Tydfil between 2019 and 2026, part of 701 applications on record. Over that period 91% of clear-cut outcomes were approvals, 490 granted against 47 refused. The busiest single year was 2026, with 246 applications recorded.
The trailing-year figures above track current activity. This record reaches back further, so a decision here may predate the online portal; each application still has its own page with the source link.
From the archive
Earliest records shown in full
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P/19/0327 Granted
49 Cottrell Street Aberfan Merthyr Tydfil CF48 4QU
Single storey rear extension
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P/19/0272 Granted
Land North Of Pant Industrial Estate Bryniau Road Pant Merthyr Tydfil
Non material amendment to planning permission P/18/0392 to vary the approved scale parameters
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P/19/0282 Granted
Brynglas Somerset Lane Cefn Coed Merthyr Tydfil CF48 2PA
Discharge of condition 3 (materials) of planning permission P/19/0125
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P/19/0271 Granted
Unit 7 & 7B Pant Industrial Estate Pant Merthyr Tydfil CF48 2SR
Erect three fascia signs
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P/19/0278 Granted
Prince Charles Hospital Gurnos Road Gurnos Merthyr Tydfil CF47 9DT
Discharge condition 3 (material details) of planning permission P/19/0012
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P/19/0291 Granted
Wilko St Tydfil Shopping Centre Merthyr Tydfil CF47 8EG
Application for non material amendment to planning application P/18/0355 to alter the external staircase configuration
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P/19/0276 Granted
School Bungalow Market Street Dowlais Merthyr Tydfil CF48 3HW
Change of use of school bungalow into an education facility. Proposal to include access ramp and new window to south facing elevation of building
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P/19/0216 Refused
Land Adjacent To 1A Blaen Dowlais Dowlais Merthyr Tydfil
Erection of a pair of semi detached dwellings with off road parking
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P/19/0262 Granted
36 Alma Street Dowlais Merthyr Tydfil CF48 3RP
Single storey extension
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P/19/0292 Refused
Park Lodge Bungalow Queens Road Twynyrodyn Merthyr Tydfil CF47 0ES
Dormer conversion comprising an increase in roof ridge height with front and side dormers, introduction of Juliette balcony and construction of a front conservatory
Decision speed
12 months to October 2026, where both dates are published
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Within 8 weeks the statutory target for most applications 162 69%
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8 to 13 weeks the target band for major development 31 13%
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Over 13 weeks often extended by agreement 42 18%
Planning agents in Merthyr Tydfil
The firms named as agent on the most applications on this register. Company information only.
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3dcadwales Limited 83% granted overall 13
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George and Co 91% granted overall 9
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Asbri Planning Ltd. 97% granted overall 7
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Penrose Architectural Services 81% granted overall 3
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Skerryvore Designs ltd. 81% granted overall 3
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Amity Planning Ltd 98% granted overall 2
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Dunraven Windows Limited 97% granted overall 2
Browse by ward
Applications by ward in Merthyr Tydfil
- CYFARTHFA 65
- DOWLAIS 92
- GURNOS 27
- MERTHYR VALE 27
- PARK 72
- PENYDARREN 26
- PLYMOUTH 63
- TOWN 128
- TREHARRIS 79
- VAYNOR 47
Browse by postcode area
Applications by postcode district
Browse by year
Every application on record, month by month
Common questions
How many planning applications does Merthyr Tydfil decide?
In the 12 months to October 2026, Merthyr Tydfil decided 235 planning applications. 92% of clear-cut outcomes were approvals.
How long does a planning decision take in Merthyr Tydfil?
The median time from a planning application being received to a decision was 48 days over the 12 months to October 2026. Individual cases vary with complexity and consultation responses.
How many Merthyr Tydfil decisions arrive within the eight week target?
Of the 235 decisions in the 12 months to October 2026 where both dates are published, 69% came within eight weeks of the application being received, and 82% within thirteen weeks.
How many planning applications has Merthyr Tydfil decided in total?
PlanIndex holds 569 decisions from Merthyr Tydfil between 2019 and 2026, out of 701 applications on record. Across that whole period 91% of clear-cut outcomes were approvals.
When is planning activity busiest in Merthyr Tydfil?
November 2025 was the busiest month across the 12 months to October 2026, with 39 applications recorded. The monthly pattern is listed on this page.
How do I find a planning application by its reference number?
Every application indexed here has its own page at a stable address. Look the reference up in a search engine together with the council name, or browse the latest applications below. Each page shows the description, address, dates and decision as the council published them.
Where can I see the full documents for an application?
Plans, drawings and officer reports stay on Merthyr Tydfil's own planning portal. Every application page here links straight to the source record.
Cite these figures
Click the text to select the whole citation.
Merthyr Tydfil: 701 planning applications on record as of October 2026. Trailing 12 months: 235 decided, 92% approved, median 48 days to a decision. 251 new applications received in the same period. Decisions on record run between 2019 and 2026: 569 in total, 91% approved. Source: PlanIndex, planindex.co.uk.
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<p>Source: <a href="https://planindex.co.uk/planning-applications/merthyr-tydfil">Planning applications in Merthyr Tydfil</a>, from PlanIndex</p>