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
2,526Searchable applications
0Recorded as pending
92%Approval rate · 2,269 approved or refused records
177Refused applications

2,092 approved · 177 refused · 95 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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/22/0042

    Single storey rear extension

    4 Tyn-Y-Banwen Road Treharris CF46 5NU

    Received Not published
  2. Not publishedP/22/0031

    Single storey rear extension with raised decking

    18 Vernon Close Penyard Merthyr Tydfil CF47 0HY

    Received Not published
  3. Not publishedP/22/0040

    Discharge of conditions 3 (external lighting) and 4 (roller shutters) of planning permission P/21/0339 relating to the refurbishment of the neighbourhood learning centre

    17-32 MTCBC Gurnos Workshops Pen-y-dre Gurnos Merthyr Tydfil CF47 9DY

    Received Not published
  4. Not publishedP/22/0041

    Discharge of condition 3 (external materials) and condition 5 (surface and foul drainage) of planning permission P/17/0195

    Land Adjacent To Alhamdra Heol-y-mynydd Cefn Coed Merthyr Tydfil CF48 2NQ

    Received Not published
  5. Not publishedP/22/0045

    Demolition of existing garage and erection of larger detached garage and access with first floor work shop and retaining works

    Ty Newydd Brondeg Heolgerrig Merthyr Tydfil CF48 1TW

    Received Not published
  6. Not publishedP/22/0043

    Change of use of adjacent land to form part of residential garden

    48 Dennithorne Close Dowlais Merthyr Tydfil CF48 3HE

    Received Not published
  7. Not publishedP/22/0044

    Proposed Conversation of Garage to Living Accommodation

    39A Anthony Hill Court Pentrebach Merthyr Tydfil CF48 4AZ

    Received Not published
  8. Not publishedP/22/0047

    Demolition of existing single storey rear extension and erection of two storey rear extension

    21 Edward Street Treharris CF46 5LF

    Received Not published
  9. Not publishedP/22/0046

    Installation of parking area, with associated paths and fencing

    54 Garden City Penydarren Merthyr Tydfil CF47 9YT

    Received Not published
  10. Not publishedP/22/0051

    Change of use of first floor from office space (B1 Use Class) to 6 no. one bedroom flats (C3 Use Class)

    First Floors Milbourne Chambers 56 - 57 Glebeland Street And 117-119 High Street Merthyr Tydfil CF47 8AT

    Received Not published
  11. Not publishedP/22/0049

    Erection of rear single-storey extension

    33 River Avenue Trelewis Treharris Merthyr Tydfil CF46 6EF

    Received Not published
  12. Not publishedP/22/0048

    Extend existing front and rear dormers

    9 Exeter Close Heolgerrig Merthyr Tydfil CF48 1SR

    Received Not published
  13. Not publishedP/22/0050

    Erection of single storey rear extension

    20 Pen Cerrig Rise Brecon View Park Heolgerrig Merthyr Tydfil CF48 1BF

    Received Not published
  14. Not publishedP/22/0057

    Erection of single storey holiday accommodation with integrated bike store

    Swan Villa 50 Swansea Road Swansea Road Merthyr Tydfil CF48 1HR

    Received Not published
  15. Not publishedP/22/0053

    Erection of 4 detached dwellings with associated parking

    Land Between 26 Gelligaer Road And The Farm Shop Gelligaer Road Trelewis CF46 6DN

    Received Not published
  16. Not publishedP/22/0060

    Erection of a 4 bedroomed dwelling with an integral garage

    26A Courtland Terrace Union Street Merthyr Tydfil CF47 0DT

    Received Not published
  17. Not publishedP/22/0056

    Single storey extension to rear elevation

    37 Millfield Quakers Yard Treharris CF46 5LD

    Received Not published
  18. Not publishedP/22/0054

    Variation of condition 1 of planning permission P/17/0055 to extend the period of time for works to commence on site

    19 Springfield Rise Treharris Merthyr Tydfil CF46 5RD

    Received Not published
  19. Not publishedP/22/0055

    Opening up works to ascertain the condition of the structure

    Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

    Received Not published
  20. Not publishedP/22/0052

    Change of use of part of ground floor to a self contained flat and associated external alterations

    8 Lakeside Gardens Gurnos Merthyr Tydfil CF48 1EN

    Received Not published
  21. Not publishedP/22/0058

    Single storey, flat roof extension to front of dwelling

    2A Winchfawr Heolgerrig Merthyr Tydfil CF48 1RD

    Received Not published
  22. Not publishedP/22/0069

    Extension of building and provision of an additional drive through booth. Reconfiguration of the drive through lane with associated works to include relocation of 2 existing customer order displays with overhead canopies, installation of a vehicle height restrictor, new island and extended patio area with fencing

    McDonalds Restaurant Unit A Cyfarthfa Retail Park Swansea Road Merthyr Tydfil CF48 1HY

    Received Not published
  23. Not publishedP/22/0064

    Proposed plastics recycling and processing facility, including two warehouse units with internal office and welfare facilities, external storage area, combined heat and power unit, car parking, weighbridge, surface water lagoon, associated infrastructure, lighting and landscaping

    Land To The East Of Goat Mill Road Dowlais Merthyr Tydfil

    Received Not published
  24. Not publishedP/22/0073

    Change of use to create charity garden with beepod, greenhouse, apiary and pathway

    Land Rear Of The Bothy Cyfarthfa Park Merthyr Tydfil CF47 8RE

    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