Wales · Local authority

Merthyr Tydfil County Borough Council
Planning applications.

Explore collected planning applications and decisions for Merthyr Tydfil County Borough Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates
2,574Searchable applications
0Recorded as pending
92%Approval rate · 2,312 approved or refused records
178Refused applications

2,134 approved · 178 refused · 97 withdrawn. Most recent record check: 12 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

Conservation areas and Article 4 directions

Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.

Conservation areas8 mapped area records
Article 4 direction areasBoundary dataset not connected

Interactive planning map loads with JavaScript. Dataset sources are linked below.

Download Article 4 coverage for all authorities (CSV)

Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.

Source: Welsh Government / DataMapWales. Contains public sector information licensed under the Open Government Licence v3.0.

More application records

  1. Not publishedP/22/0286

    Erection of four pairs of semi-detached dwellings with associated engineering and landscaping works

    Land Adjacent To Kingsley Terrace Aberfan Merthyr Tydfil

    Received Not published
  2. Not publishedP/22/0287

    Conversion of attic to form part of first floor flat with associated rooflights and other external alterations including new entrance door to flat and shopfront

    6 Fox Street Treharris CF46 5HE

    Received Not published
  3. Not publishedP/22/0284

    Change of use of land for the keeping of horses including erection of stables (proposed) and grading of land to form level area for animal welfare (retrospective)

    Land To The South West Of 152 Heolgerrig Heolgerrig Merthyr Tydfil

    Received Not published
  4. Not publishedP/22/0296

    Five storey four bedroom dwelling

    26 Courtland Terrace Union Street Merthyr Tydfil

    Received Not published
  5. Not publishedP/22/0295

    Construct rear extension to provide a two-storey workshop and cladding to front elevation

    Unit 1 Cyfarthfa Industrial Estate Merthyr Tydfil CF47 8PE

    Received Not published
  6. Not publishedP/22/0290

    Change of use of respite home to 10 affordable housing flats with associated external works including new dormers and a raised walkway

    Llysfaen Care Home Maesygarreg Cefn Coed CF48 2NE

    Received Not published
  7. Not publishedP/22/0289

    Two storey rear extension

    37 Wallhead Road Twynyrodyn Merthyr Tydfil CF47 0SS

    Received Not published
  8. Not publishedP/22/0297

    Variation of condition 2 of planning permission P/19/0329 to extend the period for the submission of the reserved matters details

    Land Adjacent To Maesynant Grove Park Merthyr Tydfil CF47 8HX

    Received Not published
  9. Not publishedP/22/0291

    Erection of conservatory

    6 Harris Court Quakers Yard Treharris CF46 5LX

    Received Not published
  10. Not publishedP/22/0292

    Change of use from 2 bedroom dwelling with annexe to short term holiday rental

    The Croft Queens Road Twynyrodyn Merthyr Tydfil CF47 0HE

    Received Not published
  11. Not publishedP/22/0300

    Wrap around side and rear extension and enlargement of front dormer window and erection of decking

    43 Salisbury Close Heolgerrig Merthyr Tydfil CF48 1SD

    Received Not published
  12. Not publishedP/22/0293

    Vary condition 1 (5 year time limit) and remove condition 9 (remedial works) of planning permission P/17/0085

    5 Woodland Way Heolgerrig Merthyr Tydfil CF48 1SQ

    Received Not published
  13. Not publishedP/22/0294

    Retention of steel framed agricultural building

    Penrhiw Farm Trelewis Treharris CF46 6TA

    Received Not published
  14. Not publishedP/22/0332

    Alterations to existing conservatory and construction of rear decking

    11 Bryntaf Cefn Coed Merthyr Tydfil CF48 2PU

    Received Not published
  15. Not publishedP/22/0302

    Construct two-storey and single storey rear extensions

    6 Edwards Terrace Bedlinog Treharris CF46 6RN

    Received Not published
  16. Not publishedP/22/0299

    Discharge of conditions 3 (Material Finishes), 4 (Boundary Details), 5 (Retaining Works), 6 (Drainage) and 8 (Landscaping) of planning permission P/19/0129 relating to a dwelling

    Land To The Rear Of 11 - 13 Gilfach-cynon Twynyrodyn Merthyr Tydfil

    Received Not published
  17. Not publishedP/22/0301

    Renovation and extension of building and change of use from retail and office to a bar/restaurant and residential (5 No. flats)

    120 - 121 High Street Merthyr Tydfil CF47 8BL

    Received Not published
  18. Not publishedP/22/0303

    Replacement of existing stables with new stable block for hobby use, sitting of 3 No. steel containers for tack and fodder storage and retention of retaining wall

    Land To The South East Of Ael-y-Bryn Trelewis CF46 6BD

    Received Not published
  19. Not publishedP/22/0306

    Discharge of condition 7 (soft landscaping) and 14 (bat and bird boxes) of planning permission P/20/0288

    Land At Junction Of Lansbury Road And Heol Parc Y Lan And Land Off Heol Tai Mawr Gellideg Swansea Road Merthyr Tydfil

    Received Not published
  20. Not publishedP/22/0327

    Discharge of condition 3 (retaining wall details) of planning permission P/22/0086

    Land To The Rear Of 1 And 2 Blaenau'r Cwm Penyard Merthyr Tydfil CF47 0JD

    Received Not published
  21. Not publishedP/22/0304

    Discharge of condition 4 (details of wild flower strip) of planning permission P/20/0262

    Red Barrel House Pant Road Dowlais Merthyr Tydfil CF48 3SH

    Received Not published
  22. Not publishedP/22/0305

    Discharge of condition 3 (structural calculations) of planning permission P/22/0152

    1 Ash Villas Cardiff Road Troedyrhiw Merthyr Tydfil CF48 4LE

    Received Not published
  23. Not publishedP/22/0307

    Replacement of two electricity generating engines with two battery storage units

    Trecatti Landfill Site Fochriw Road Pant-y-waun

    Received Not published
  24. Not publishedP/22/0308

    Discharge of conditions 12 (Sewer Easement), 15 (Electric Vehicle Charging), 26 (Bird & Bat Boxes) and 27 (Reptile Mitigation) of planning permission P/21/0358 relating to a residential development

    Land Off Elm Tree Grove Twynyrodyn

    Received Not published

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Researching a proposal in Merthyr Tydfil County Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

Planning procedures in Wales differ from those in England. Use the authority’s own guidance for application requirements, comments and decision timescales.

How to search planning applications

Guides to planning records

All planning guides
  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

  • Property research · 13 min read

    Planning approval rates: how to read council statistics

    Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.

What these statistics cover

These figures describe applications collected by PlanningTrack for Merthyr Tydfil County Borough Council, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.

The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.

Check collection coverage