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.
1,863 approved · 161 refused · 85 withdrawn. Most recent record check: 11 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 Counts reflect the last collected status; some records may be out of date.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.
16 The Park Treharris CF46 5RH
Received Not publishedGarages At Junction Of Overton Street And Victoria Street Dowlais Merthyr Tydfil
Received Not publishedPlot 4, Land Off Upper Colliers Row Heolgerrig Merthyr Tydfil
Received Not published26 Maesgwynne Cefn Coed Merthyr Tydfil CF48 2SB
Received Not publishedLand At East Street And Upper Union Street Dowlais Merthyr Tydfil
Received Not publishedLand To The Rear Of Ynysygored Cottages Aberfan Road Aberfan Merthyr Tydfil
Received Not publishedLand Adjacent To 1 Bedlinog Terrace Bedlinog Treharris
Received Not publishedKepak Group Ltd Pengarnddu Industrial Estate Dowlais Top Merthyr Tydfil
Received Not published11 Tyllwyd Street Penydarren Merthyr Tydfil CF47 9LE
Received Not publishedLand At East Street Dowlais Merthyr Tydfil
Received Not published57 Lakeside Gardens Gurnos Merthyr Tydfil CF48 1EW
Received Not published73 Pontmorlais High Street Merthyr Tydfil CF47 8UN
Received Not publishedLand To The Rear Of 1 & 2 Cyfarthfa Gardens Cefn Coed Merthyr Tydfil
Received Not published15 Upper High Street Bedlinog Treharris CF46 6RY
Received Not publishedLand At Cropthorne Stables Shingrig Road Trelewis Treharris
Received Not published14 Hawthorn Hill Trefechan Merthyr Tydfil CF48 2ES
Received Not publishedLand Adjoining (south Of) Delacey Builders Goat Mill Road Dowlais Merthyr Tydfil
Received Not publishedJah Jireh Care Home Heads Of The Valleys Road Merthyr Tydfil CF44 0LX
Received Not publishedLand Adjacent To Lay-by On Road Between Bedlinog And Fochriw, Gelligaer And Merthyr Common
Received Not published10 & 11 Harlan Business Park Goat Mill Road Dowlais Merthyr Tydfil CF48 3TE
Received Not published10 - 13 Hampton Street Twynyrodyn Merthyr Tydfil CF47 0RR
Received Not published61 Yew Street Troedyrhiw Merthyr Tydfil CF48 4EB
Received Not published16 The Park Treharris CF46 5RH
Received Not publishedLand To Rear Of 57-61 Ernest Street Warlow Street Merthyr Tydfil
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