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

2,264Searchable applications

0Recorded as pending

92%Approval rate · 2,019 approved or refused records

161Refused applications

1,858 approved · 161 refused · 84 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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/20/0049
Non material amendment to planning permission P/16/0262 to replace roof lights with windows in the western elevation
Autumn Leaves Grawen Lane Cefn Coed Merthyr Tydfil CF48 2NP
Received Not published
Not publishedP/20/0052
Erection of detached dwelling house (Renew Permission P/12/0207)
Plot 4A Elwyn Drive Twynyrodyn Merthyr Tydfil
Received Not published
Not publishedP/20/0053
Construct single storey extension to the side of the property
21 St Donats Close Castle Park Swansea Road Merthyr Tydfil CF48 1JP
Received Not published
Not publishedP/20/0057
Single storey extension
10 Gelligaer Road Trelewis Treharris CF46 6DN
Received Not published
Not publishedP/20/0079
Non Material amendment to planning permission P/18/0401 for alterations to windows and doors, changes to garden/boundary walls and fence, change driveway surfacing materials to paviours, introduce side gate and timber screen and rearrange internal rooms
Plot 1 Greenacres Brondeg Heolgerrig Merthyr Tydfil CF48 1TP
Received Not published
Not publishedP/20/0059
Change of use of two/three storey property from 3 No. self contained residential units into a single 3 bedroom dwelling with storage facility at lower ground floor level
25 Park Place Penydarren Road Merthyr Tydfil CF47 0DJ
Received Not published
Not publishedP/20/0065
Temporary permission for the siting of a steel container
Treharris Pheonix RFC Forest Road Treharris
Received Not published
Not publishedP/20/0061
Remove conservatory and construct single storey rear and side extension
9 Millfield Quakers Yard Treharris CF46 5LD
Received Not published
Not publishedP/20/0064
Construct two single storey buildings to provide a storage area and changing rooms
Guest Memorial Sports & Social Club High Street Dowlais Merthyr Tydfil CF48 3HA
Received Not published
Not publishedP/20/0060
Erection of 9 No. storage units
Willows House Abercanaid Industrial Estate Abercanaid Merthyr Tydfil CF48 1YF
Received Not published
Not publishedP/20/0076
Construct 2 detached dwellings, a garage and granny annex
Land Adjacent To 39 Park Place Troedyrhiw Merthyr Tydfil
Received Not published
Not publishedP/20/0062
Two storey rear extension
4 Brynmair Terrace Merthyr Road Penydarren Merthyr Tydfil CF47 9HJ
Received Not published
Not publishedP/20/0063
Conversion and extension of existing garage building to provide a 1 bedroom dwelling. Proposal to include associated external works to building
Grawen House Grawen Lane Cefn Coed Merthyr Tydfil CF48 2NN
Received Not published
Not publishedP/20/0066
First floor extension above exiting ground floor extension
37 Anthony Grove Abercanaid Merthyr Tydfil CF48 1YX
Received Not published
Not publishedP/20/0067
Construct conservatory to the front of the property
20 Millers Row Cardiff Road Treharris CF46 5DR
Received Not published
Not publishedP/20/0068
Non material amendment to planning permission P/18/0311 to add window ventilation louvres, alter main entrance lobby, increase timber cladding to two first floor windows, change design of brise soleil fins and introduce small plant enclosure on roof
Former Vaynor & Penderyn School Site And Godre'r Coed Playing Field Site Old Church Street Cefn Coed Merthyr Tydfil CF48 2RR
Received Not published
Not publishedP/20/0069
Discharge of conditions 3 (landscaping) and 6 (boundary treatments) of planning permission P/18/0311 for the construction of a new school, internal access road, car parking and games area
Former Vaynor & Penderyn School Site And Godre'r Coed Playing Field Site Old Church Street Cefn Coed Merthyr Tydfil CF48 2RR
Received Not published
Not publishedP/20/0082
Construction of gravel access track with grass central reservation
Land Rear Of Ynysygored Cottages Aberfan Road Aberfan Merthyr Tydfil
Received Not published
Not publishedP/20/0160
Use of Nazareth Chapel and adjoining garden as a residential dwelling
Nazareth Yew Street Troedyrhiw Merthyr Tydfil CF48 4DZ
Received Not published
Not publishedP/20/0081
Two storey rear extension
2 Perthygleision Bridge Aberfan Merthyr Tydfil CF48 4PP
Received Not published
Not publishedP/20/0078
Discharge of condition 11 (carriageway widening details) of planning permission P/18/0330 to construct 10 affordable housing units
Land At East Street And Upper Union Street Dowlais Merthyr Tydfil
Received Not published
Not publishedP/20/0075
Convert garage to playroom
24 Cwrt Bevan Merthyr Tydfil CF47 0AQ
Received Not published
Not publishedP/20/0070
Erect new front porch
6 Tai-yr-efail Pant Merthyr Tydfil CF48 2DP
Received Not published
Not publishedP/20/0071
Erection of sprinkler tank and pump, refuse compound, bin store and sun shade sail
Former Vaynor & Penderyn School Site And Godre'r Coed Playing Field Site Cefn Coed 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.
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