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
2,495Searchable applications
0Recorded as pending
92%Approval rate · 2,239 approved or refused records
174Refused applications

2,065 approved · 174 refused · 94 withdrawn. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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/21/0315

    Convert existing garage and construct new detached garage

    26 Calluna Close Dowlais Merthyr Tydfil CF48 3HF

    Received Not published
  2. Not publishedP/21/0314

    Two storey rear extension and associated retaining works

    23 Cwm Cottages Heolgerrig Merthyr Tydfil CF48 1RS

    Received Not published
  3. Not publishedP/21/0328

    Discharge of conditions 6, 7, 8, 10 & 11 of planning permission P/20/0025 for engineering works including provision of a sewer and culvert/out flow, raising of the land and creation of site access road

    Former Ardagh Site Abercanaid Merthyr Tydfil

    Received Not published
  4. Not publishedP/21/0326

    First floor rear extension

    35 Park Place Troedyrhiw Merthyr Tydfil CF48 4ET

    Received Not published
  5. Not publishedP/21/0395

    Change of use from offices to restaurant (A3 Use Class) at ground floor, and 12 flats (C3 Use) over the first, second, third & fourth floors. Proposal to include external works to building.

    Castle House Glebeland Street Merthyr Tydfil CF47 8AT

    Received Not published
  6. Not publishedP/21/0350

    Replace front windows and door

    12 Nightingale Street Abercanaid Merthyr Tydfil CF48 1DX

    Received Not published
  7. Not publishedP/21/0319

    Single storey rear extension

    10 Model Cottages Baden Terrace Penyard Merthyr Tydfil CF47 0HS

    Received Not published
  8. Not publishedP/21/0324

    Display of 3 internally illuminated signs and display of one digitally printed vinyl graphic

    Well Pharmacy Fox Street Treharris CF46 5HE

    Received Not published
  9. Not publishedP/21/0323

    Timber framed rear extension

    17 Blaenau'r Cwm Penyard Merthyr Tydfil CF47 0JD

    Received Not published
  10. Not publishedP/21/0320

    Discharge of Condition 11 (Construction method statement) of planning permission P/20/0121

    Land To The North Of Crabtree Walk And To The West Of Sweetwater Park Trefechan Merthyr Tydfil

    Received Not published
  11. Not publishedP/21/0321

    Discharge of Conditions 3 (Retaining works) and 8 (Archaelogical mitigation) of Planning Permission P/20/0121

    Land To The North Of Crabtree Walk And To The West Of Sweetwater Park Trefechan Merthyr Tydfil

    Received Not published
  12. Not publishedP/21/0327

    Single storey extension to rear and first floor infill extension to rear

    4 Gladstone Terrace Plymouth Street Merthyr Tydfil CF47 0UU

    Received Not published
  13. Not publishedP/21/0325

    Discharge of condition 6 (retaining works) of planning permission P/16/0191 relating to a dwelling

    Land Adjacent To 3 Tramroadside Treharris

    Received Not published
  14. Not publishedP/21/0332

    Erect 4, 15 metre flood lights to sports field on lower site

    Godre'r Coed Playing Fields Godre'r Coed Road Cefn Coed Merthyr Tydfil CF48 2RD

    Received Not published
  15. Not publishedP/21/0329

    Non material amendment to planning permission P/20/0236

    11 Shirley Drive Heolgerrig Merthyr Tydfil CF48 1SE

    Received Not published
  16. Not publishedP/21/0334

    Attic conversion comprising of an increase in roof ridge height and change from hipped roof to gable roof with dormers to front, rear and side

    Woodstock Somerset Lane Cefn Coed Merthyr Tydfil CF48 2PA

    Received Not published
  17. Not publishedP/21/0336

    Single storey side and rear extension

    12 Maesgwynne Cefn Coed Merthyr Tydfil CF48 2SB

    Received Not published
  18. Not publishedP/21/0339

    Refurbishment of neighbourhood learning centre comprising the rendering of three buildngs, installation of new windows and doors, the creation of 5 flats, wardens accommodation in building 2, installation of solar panels and associated landscaping works

    17 - 32 MTCBC Gurnos Workshops Pen-y-dre Gurnos Merthyr Tydfil

    Received Not published
  19. Not publishedP/21/0342

    Variation of Conditions 15 (piling) and 20 (retaining walls) of planning permission P/20/0199 to enable details to be submitted prior to works commencing on the construction of the dwellings

    Former St Tydfils Hospital Upper Thomas Street Merthyr Tydfil CF47 0SJ

    Received Not published
  20. Not publishedP/21/0340

    Conversion of barn to a dwelling and other associated alterations

    Goitre Coed Fach Farm Goitre-coed Road Treharris CF46 5BB

    Received Not published
  21. Not publishedP/21/0343

    Discharge Condition 3 (Materials) of planning permission P/18/0350

    Land Off Aneurin Crescent Twynyrodyn Merthyr Tydfil

    Received Not published
  22. Not publishedP/21/0335

    Non material amendment to planning permission P/20/0100 to replace the proposed window and door with sliding glass doors

    7 Mardy Close Merthyr Tydfil CF47 0YH

    Received Not published
  23. Not publishedP/21/0331

    Reduce height of Beech tree, Lawson Cypress and Yew tree. Fell Weeping Ash and Cherry Blossom and remove unions of other Cherry Blossom trees

    St David's Parish Church High Street Merthyr Tydfil CF47 8AF

    Received Not published
  24. Not publishedP/21/0345

    Erect front and rear dormers to provide 3 bedrooms and bathroom in roof space

    19 Six Bells Estate Heolgerrig Merthyr Tydfil CF48 1TU

    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