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
2,438Searchable applications
0Recorded as pending
92%Approval rate · 2,185 approved or refused records
171Refused applications

2,014 approved · 171 refused · 91 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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/21/0126

    Two storey rear extension and first floor balcony, garden retaining walls with garden profiling and timber boundary fence

    25 Heol Corn Du Swansea Road Merthyr Tydfil CF48 1BW

    Received Not published
  2. Not publishedP/21/0147

    Erection of two storey rear extension

    10 George Street Bedlinog Treharris CF46 6RT

    Received Not published
  3. Not publishedP/21/0129

    Replace front windows and internal alterations

    4 Quay Row Abercanaid Merthyr Tydfil CF48 1YP

    Received Not published
  4. Not publishedP/21/0124

    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
  5. Not publishedP/21/0136

    Discharge of conditions 2 (ground level details) and 4 (soakaway calcs) of planning permission P/16/0177 for the erection of domestic storage building

    Land Adjacent To Winch Fawr Road Swansea Road Heolgerrig Merthyr Tydfil

    Received Not published
  6. Not publishedP/21/0149

    Change of use from tanning salon (sui generis) to flat (C3 use class)

    1 Walter's View Walter Street Dowlais Merthyr Tydfil CF48 3AW

    Received Not published
  7. Not publishedP/21/0114

    Discharge of conditions 4 (sample panel) and 14 (bat boxes) of planning permission P/16/0048 for the construction of a new bus station

    Merthyr Tydfil Bus Station Swan Street Merthyr Tydfil CF47 8EU

    Received Not published
  8. Not publishedP/21/0128

    Alteration of existing covered play area to provide a classroom

    Cyfarthfa Park Primary Infant School Norman Terrace Merthyr Tydfil CF47 8SD

    Received Not published
  9. Not publishedP/21/0130

    First floor rear extension

    6 Bishops Grove Penydarren Merthyr Tydfil CF47 9LJ

    Received Not published
  10. Not publishedP/21/0133

    Construct side extension to provide larger garage with first floor dormer accommodation above. New roof to replace flat roof on existing single storey extension.

    Ty-Newydd Pleasant View Bedlinog Treharris CF46 6SF

    Received Not published
  11. Not publishedP/21/0119

    First floor rear extension

    11 Gellifaelog Terrace Penydarren Merthyr Tydfil CF47 9HL

    Received Not published
  12. Not publishedP/21/0123

    Certificate of lawfulness to use summer house for dog grooming

    2 Barrack Row Dowlais Merthyr Tydfil CF48 3NF

    Received Not published
  13. Not publishedP/21/0120

    Discharge of condition 3 (disposal of surface water) and condition 4 (bat box details) of planning permission P/21/0023

    GTH Developments Cyfarthfa Yard Cyfarthfa Road Merthyr Tydfil CF48 1BS

    Received Not published
  14. Not publishedP/21/0152

    Discharge of conditions 4 (retaining walls) and 5 (drainage details) of planning permission P/18/0350 for the erection of 5, 2 bedroom bungalows

    Land Off Aneurin Crescent Twynyrodyn Merthyr Tydfil

    Received Not published
  15. Not publishedP/21/0198

    Use of land for outdoor storage of skips for a temporary period of 12 months

    Land At Taff Bargoed Development Trust The Old Drift Mine Trelewis Treharris CF46 6RD

    Received Not published
  16. Not publishedP/21/0164

    Replace 52 diesel generators with low carbon battery storage technology

    Plot 2 Pengarnddu Industrial Estate Dowlais Merthyr Tydfil CF48 2TA

    Received Not published
  17. Not publishedP/21/0135

    Proposed bypass

    Land To The West Of Llwydcoed And The East Of Penywaun Aberdare Rhondda Cynon Taff

    Received Not published
  18. Not publishedP/21/0146

    Erection of single storey front and side extension (incorporating study and utility room)

    Cadlan 10A The Grove Merthyr Tydfil CF47 8YR

    Received Not published
  19. Not publishedP/21/0132

    Advertisement consent for signage on prescription dispensing unit to the side of Pearn's Pharmacy

    Morlais Medical Centre Berry Square Dowlais Merthyr Tydfil CF48 3AL

    Received Not published
  20. Not publishedP/21/0140

    Two storey rear extension with external alterations, creation of rear vehicular access and raised hard standing with associated reprofiling and retaining works

    24 Church Street Penydarren Merthyr Tydfil CF47 9HS

    Received Not published
  21. Not publishedP/21/0134

    Change of use to 3 bed dwelling with associated parking

    Former Troedyrhiw Library Tyntaldwyn Road Troedyrhiw Merthyr Tydfil CF48 4NG

    Received Not published
  22. Not publishedP/21/0151

    Two storey rear extension

    17 Dane Street Merthyr Tydfil CF47 8SF

    Received Not published
  23. Not publishedP/21/0137

    Erection of single storey extension (disabled accommodation)

    16 Penyfan View Gurnos Merthyr Tydfil CF47 9BX

    Received Not published
  24. Not publishedP/21/0142

    Construction of a temporary haul road to facilitate construction of a new service reservoir

    Pengarnddu Service Reservoir Pengarnddu Industrial Estate Dowlais Merthyr Tydfil

    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