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

2,769Searchable applications

0Recorded as pending

92%Approval rate · 2,490 approved or refused records

198Refused applications

2,292 approved · 198 refused · 107 withdrawn. Most recent record check: 12 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 Counts reflect the last collected status; some records may be out of date.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/25/0256
Variation of Condition 1 of planning permission P/95/0607 to enable the unit to be used for the sale of convenience goods, carpets and consumer durable goods, together with no more than 175sqm gross floorspace of unrestricted ancillary comparison goods.
Unit E Dowlais Top Retail Park Merthyr Tydfil CF48 2TA
Received Not published
Not publishedP/25/0255
Erection of front garden boundary railing
22 Cedar Close Twynyrodyn Merthyr Tydfil CF47 0LX
Received Not published
Not publishedP/25/0259
Single storey infill extension to rear and new windows and doors to sunroom
Highcroft Queens Road Twynyrodyn Merthyr Tydfil CF47 0HE
Received Not published
Not publishedP/25/0257
Erection of a first floor extension, change of use to an office and associated external works including new shopfront
62C High Street Cefn Coed Merthyr Tydfil CF48 2PL
Received Not published
Not publishedP/25/0260
Alterations to windows and doors to the front elevation and proposed hardstanding within the rear garden
48 Barrack Row Dowlais Merthyr Tydfil CF48 3NF
Received Not published
Not publishedP/25/0287
Erection of two storey and single storey rear extensions
14 Rees Street Twynyrodyn Merthyr Tydfil CF47 0RF
Received Not published
Not publishedP/25/0274
Siting of mobile home to accommodate an agricultural worker
Penbwlcha Farm Twynygarreg Treharris CF46 5RN
Received Not published
Not publishedP/25/0264
Non material amendment to application P/25/0151 for alterations to fenestration and roofs, to include biodiversity enhancements required by condition 3 and to vary wording of conditions 4, 6 & 8 to change the timings for submission of information
Y Goedwig Cardiff Road Treharris CF46 5NB
Received Not published
Not publishedP/25/0261
Discharge of conditions 4 (Highway Barrier), 5 (Retaining Works), 6 (Boundaries), 9 (External Lighting), 11 (Delivery and Servicing Management Plan) and 12 (Non-native Invasive Species Strategy) of planning permission P/24/0200 relating to a new coffeeshop with drive-thru facility.
Land Adjacent To Aberdare Road Roundabout Cyfarthfa Retail Park Swansea Road Merthyr Tydfil
Received Not published
Not publishedP/25/0269
Proposed change of use from dwelling to a 8 bedroom House in Multiple Occupation all with en-suites
6 Cardiff Road Troedyrhiw Merthyr Tydfil CF48 4LB
Received Not published
Not publishedP/25/0262
One dwelling (outline application)
Maesyfynnon House, Ponsticill Merthyr Tydfil
Received Not published
Not publishedP/25/0265
Demolition of existing buildings and development of a restaurant with drive-thru facility (Use Class A3) including access and cycle path, servicing, car parking, hard and soft landscaping, advertisements and other associated works
Land To The North Of The Heads Of The Valleys Road Off Rhymney Common Road Dowlais Merthyr Tydfil CF48 2YG
Received Not published
Not publishedP/25/0266
Signage to proposed drive-thru restaurant building and within the site
Land To The North Of The Heads Of The Valleys Road Off Rhymney Common Road Dowlais Merthyr Tydfil CF48 2YG
Received Not published
Not publishedP/25/0268
Two storey side extension, single storey rear extension, decking and other external alterations
7 Caradoc Street Merthyr Tydfil CF47 8SS
Received Not published
Not publishedP/25/0267
Change of use from agricultural land to domestic garden and retention of garden shed
10 Dan Y Coed Pontsticill Merthyr Tydfil CF48 2UA
Received Not published
Not publishedP/25/0270
Proposed cladded container to accommodate household storage
36 Vernon Close Penyard Merthyr Tydfil CF47 0HY
Received Not published
Not publishedP/25/0272
The proposed works comprise: - Refurbishment of main WCs and secondary, currently disused, WCs. - Upgrades to and expansion of CCTV provision internally. - Upgrades to 2 no. external CCTV cameras - existing fixings to be reused. - Introduction of improved and more energy efficient exhibition lighting. - Installation of Wi-Fi throughout the museum spaces
Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE
Received Not published
Not publishedP/25/0271
Carry out the following works to trees listed: T2- Reduce eastern stem height by 3m, T3- Reduce crown by 3-4m, T4- Reduce crown by 4m, T5,T6,T7- Fell (dead trees), T8- Remove partially failed limb, T10- Reduce crown by 1-2m, T11- Reduce crown by 1-2m
Goitre Coed Fach Farm Goitre-coed Road Treharris CF46 5BB
Received Not published
Not publishedP/25/0275
Assorted signage
Cyfarthfa Park - Grounds Cyfarthfa Park Merthyr Tydfil CF47 8RE
Received Not published
Not publishedP/25/0278
Remove conservatory and chimney; remove and replace the roof including increasing the ridge height of the property; construct a two-storey front extension; install a balcony along the front elevation; and erect a two-storey side extension incorporating outdoor living space and balcony.
Summerfield 8 Pontsarn Close Pontsarn Merthyr Tydfil CF48 2TW
Received Not published
Not publishedP/25/0281
Erection of 2 No. dwellings
Builders Yard Elwyn Drive Twynyrodyn Merthyr Tydfil CF47 0NJ
Received Not published
Not publishedP/25/0279
Refurbishment of existing flats to include new rear dormer, alterations to windows and doors, improvements in fire proofing and repairs to rear garden wall.
54A And 54B High Street Dowlais Merthyr Tydfil CF48 3PW
Received Not published
Not publishedP/25/0280
The change of use of ground floor from a shop (A1) to a self-contained flat (C3).
51 Perrott Street Treharris CF46 5ET
Received Not published
Not publishedP/25/0276
Rear single storey extension
1 Penygarn Ponsticill Merthyr Tydfil Cf48 2TY
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