P/25/0338

1. 18 Dec 2025

   Received by Merthyr Tydfil

2. 27 May 2026

   Decision issued: Certificate of Law Refused

3. 28 Jul 2026

   Added to PlanIndex

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• P/26/0130 Status unknown

  4 Brunswick Street Merthyr Tydfil CF47 8SB

  Rear retaining wall and steps and rear shed.

  18 Jun 2026 168m away Full applications
• P/26/0153 Status unknown

  1 Vulcan Court Vulcan Road Merthyr Tydfil CF47 8LZ

  Replace existing timber front door, frame and side screens with an exact copy in laminated timber to match original in style and colour. (Listed Building Consent)

  9 Jul 2026 187m away Heritage and listed buildings
• P/25/0308 Granted

  Joseph Parry Cottage 4 Chapel Row Georgetown Merthyr Tydfil CF48 1BN

  Installation of a ventilation system and refurbishment of Joseph Parry Cottage including, sand blast floor and ceiling, decorate the walls, new rear door, new accessible toilet, new vinyl floor, refurbish all windows including secondary glazing and new re-lay flag stones

  24 Nov 2025 208m away Heritage and listed buildings
• P/26/0004 Granted

  7 Caradoc Street Merthyr Tydfil CF47 8SS

  Single storey side extension, single storey rear extension and other external alterations

  9 Jan 2026 219m away Full applications
• P/25/0268 Refused

  7 Caradoc Street Merthyr Tydfil CF47 8SS

  Two storey side extension, single storey rear extension, decking and other external alterations

  9 Oct 2025 223m away Full applications
• P/26/0073 Decided

  Park Terrace Merthyr Tydfil CF47 8RF

  Removal of a tree (tilia x europaea), also known as a common linden tree from the public footpath outside Maes-y-coed guest house

  7 Apr 2026 335m away Trees

• P/26/0150 Granted

  45 Taldwyn Terrace Merthyr Road Troedyrhiw Merthyr Tydfil CF48 4JL

  Rear dormer roof extension (lawful development certificate)

  7 Jul 2026 Lawful development
• P/26/0132 Granted

  Cotham Heol-y-mynydd Cefn Coed Merthyr Tydfil CF48 2NQ

  Lawful Development Certificate for a proposed single storey rear extension

  17 Jun 2026 Lawful development
• P/26/0161 Status unknown

  Cefn Fforest Farm Twynygarreg Treharris CF46 5RN

  Lawful Development Certificate for proposed assorted extensions and works

  15 Jul 2026 Lawful development
• P/26/0088 Granted

  44 Webster Street Treharris CF46 5HP

  New solar panels to the rear of the property

  29 Apr 2026 Lawful development
• P/26/0081 Granted

  Penbwlcha Farm Treharris CF46 5RN

  Certificate of lawfulness for the siting of an existing caravan and its proposed residential use ancillary to the main dwelling.

  30 Apr 2026 Lawful development