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

2,344Searchable applications

0Recorded as pending

92%Approval rate · 2,096 approved or refused records

164Refused applications

1,932 approved · 164 refused · 87 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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

Planning information Skip to main content Local plan Replacement Local Development Plan 2016-2031 Pre-application advice Pre-application Advice Conservation areas Conservation Areas Article 4 directions Article 4

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

Not publishedP/20/0227
Single-storey rear extension (Certificate of Lawful Development)
2 The Birchway Trefechan Merthyr Tydfil CF48 2HA
Received Not published
Not publishedP/20/0198
Single storey side extension
33 The Birchway Trefechan Merthyr Tydfil CF48 2HA
Received Not published
Not publishedP/20/0197
Certificate of lawful development for the erection of a single storey rear extension (Proposed)
9 Lakeside Gardens Gurnos Merthyr Tydfil CF48 1EN
Received Not published
Not publishedP/20/0206
Single storey rear extension
43 Cwrt Bevan Merthyr Tydfil CF47 0AQ
Received Not published
Not publishedP/20/0205
Erect a first floor extension and a two storey extension to side and rear of property. Proposal to include new canopy over front door
1 Oaklands Cardiff Road Merthyr Vale Merthyr Tydfil CF48 4SY
Received Not published
Not publishedP/20/0218
Proposed extension to existing out building
Tenneco Pengarnddu Industrial Estate Dowlais Merthyr Tydfil CF48 2TA
Received Not published
Not publishedP/20/0202
Refurbishment of property including removal of rear annexe, creation of car parking area and erection of railings and boundary wall
Nazareth Chapel Yew Street Troedyrhiw Merthyr Tydfil CF48 4DZ
Received Not published
Not publishedP/20/0203
Two storey rear extension and attached garage
2 Pen Cerrig Rise Brecon View Park Heolgerrig Merthyr Tydfil CF48 1BF
Received Not published
Not publishedP/20/0211
Discharge of condition 4 (drainage) and 5 (retaining work) of planning permission P/17/0011 relating to a new dwelling
Land At Smerdon Tree Services The Old School Commercial Street Bedlinog Treharris CF46 6RF
Received Not published
Not publishedP/20/0246
Conversion of garage to home office
21 Harris Court Quakers Yard Treharris Merthyr Tydfil CF46 5LX
Received Not published
Not publishedP/20/0208
Discharge of conditions 4 (boundary treatments) and 9 (ground investigation) of planning permission P/20/0109
Land At Pant Industrial Estate Pant Merthyr Tydfil
Received Not published
Not publishedP/20/0207
Non material amendment to planning permission P/19/0121 to provide additional window to front elevation of extension
13 Harlech Drive Castle Park Swansea Road Merthyr Tydfil CF48 1JU
Received Not published
Not publishedP/20/0214
Demolition of existing garage and erection of new garage (Retrospective)
Llewelyn Street Garage Junction Of Llewelyn Street And Victoria Street Dowlais Merthyr Tydfil
Received Not published
Not publishedP/20/0209
Reconstruction of sections of retaining wall
16 The Park Treharris CF46 5RH
Received Not published
Not publishedP/20/0297
Refurbishment of chapel hall, including reconstruction of toilet block with re-instatement of pitched roof and part new pitched roof, demolition and reconstruction of west gable end wall and repainting of mural and re-render walls
High Street Chapel High Street Merthyr Tydfil CF47 8DN
Received Not published
Not publishedP/20/0212
Demolition of existing garage and construction of new timber shed
8 Plantation Square Troedyrhiw Merthyr Tydfil CF48 4HQ
Received Not published
Not publishedP/20/0296
Refurbishment of chapel hall, including reconstruction of toilet block with re-instatement of original pitched roof and part pitched roof, demolition and reconstruction of west gable end wall and re painting of mural and re-render walls
High Street Chapel High Street Merthyr Tydfil CF47 8DN
Received Not published
Not publishedP/20/0213
Erect 1m high railings and gates to front and side garden boundaries
6 Oak Tree Rise Dan Y Graig Twynyrodyn Merthyr Tydfil Merthyr Tydfil CF47 0SN
Received Not published
Not publishedP/20/0215
Discharge condition 8 (retaining walls) of planning permission (P/20/02109)
Land At Pant Industrial Estate Pant Merthyr Tydfil
Received Not published
Not publishedP/20/0228
Construction a 9ML (mega litre) 2-cell reservoir and associated engineering, access and landscaping works
Pengarnddu Service Reservoir Pengarnddu Industrial Estate Dowlais Merthyr Tydfil
Received Not published
Not publishedP/20/0226
Retention of covered seating area
76 Glasier Road Twynyrodyn Merthyr Tydfil CF47 0SR
Received Not published
Not publishedP/20/0272
Two storey side and rear extensions, single storey rear extension and re-profiling of rear garden to include the erection of retaining wall
12 Conway Grove Castle Park Swansea Road Merthyr Tydfil CF48 1JJ
Received Not published
Not publishedP/20/0229
Proposed extension
Maes Y Meillion Swansea Road Swansea Road Merthyr Tydfil CF48 1HU
Received Not published
Not publishedP/20/0240
Re-use and extend a single storey temporary building to accommodate a temporary MDTU unit, to include the addition of a first floor
Prince Charles Hospital Gurnos Road Gurnos Merthyr Tydfil CF47 9DT
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.
UK research
Published 16 Jul 2026Updated 13 Sept 2026
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.
UK research
Published 6 Aug 2026Updated 13 Sept 2026
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.
UK research
Published 13 Aug 2026Updated 13 Sept 2026

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