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.
Wales · Local authority
Explore collected planning applications and decisions for Merthyr Tydfil County Borough Council. Search an address, application reference or proposal to find a record.
2,134 approved · 178 refused · 97 withdrawn. Most recent record check: 12 Oct 2026. Counts reflect the last collected status; some records may be out of date.
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.
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.
Land Adjacent To Kingsley Terrace Aberfan Merthyr Tydfil
Received Not published6 Fox Street Treharris CF46 5HE
Received Not publishedLand To The South West Of 152 Heolgerrig Heolgerrig Merthyr Tydfil
Received Not published26 Courtland Terrace Union Street Merthyr Tydfil
Received Not publishedUnit 1 Cyfarthfa Industrial Estate Merthyr Tydfil CF47 8PE
Received Not publishedLlysfaen Care Home Maesygarreg Cefn Coed CF48 2NE
Received Not published37 Wallhead Road Twynyrodyn Merthyr Tydfil CF47 0SS
Received Not publishedLand Adjacent To Maesynant Grove Park Merthyr Tydfil CF47 8HX
Received Not published6 Harris Court Quakers Yard Treharris CF46 5LX
Received Not publishedThe Croft Queens Road Twynyrodyn Merthyr Tydfil CF47 0HE
Received Not published43 Salisbury Close Heolgerrig Merthyr Tydfil CF48 1SD
Received Not published5 Woodland Way Heolgerrig Merthyr Tydfil CF48 1SQ
Received Not publishedPenrhiw Farm Trelewis Treharris CF46 6TA
Received Not published11 Bryntaf Cefn Coed Merthyr Tydfil CF48 2PU
Received Not published6 Edwards Terrace Bedlinog Treharris CF46 6RN
Received Not publishedLand To The Rear Of 11 - 13 Gilfach-cynon Twynyrodyn Merthyr Tydfil
Received Not published120 - 121 High Street Merthyr Tydfil CF47 8BL
Received Not publishedLand To The South East Of Ael-y-Bryn Trelewis CF46 6BD
Received Not publishedLand At Junction Of Lansbury Road And Heol Parc Y Lan And Land Off Heol Tai Mawr Gellideg Swansea Road Merthyr Tydfil
Received Not publishedLand To The Rear Of 1 And 2 Blaenau'r Cwm Penyard Merthyr Tydfil CF47 0JD
Received Not publishedRed Barrel House Pant Road Dowlais Merthyr Tydfil CF48 3SH
Received Not published1 Ash Villas Cardiff Road Troedyrhiw Merthyr Tydfil CF48 4LE
Received Not publishedTrecatti Landfill Site Fochriw Road Pant-y-waun
Received Not publishedLand Off Elm Tree Grove Twynyrodyn
Received Not publishedRecords are ordered by application ID, not submission date. Use search to find a particular address or proposal.
View all applicationsStart 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
Understanding planning · 13 min read
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
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
Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.
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