56 Penybryn Penydarren Merthyr Tydfil CF47 9YY

1. 8 Nov 2024

   Received by Merthyr Tydfil

2. 28 Nov 2024

   Decision issued: Certificate of Law Granted

3. 14 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within five years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

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

• 46 Garden City Penydarren Merthyr Tydfil CF47 9YT

  P/25/0340 Submitted 19 Dec 2025 132m away

  Construct side extension

  Refused Full applications Extension 5 docs

• 46 Garden City Penydarren Merthyr Tydfil CF47 9YT

  P/25/0254 Submitted 24 Sep 2025 133m away

  Construct two storey side garage extension

  Refused Full applications Extension 4 docs

• 107 And 108 Haydn Terrace Penydarren Merthyr Tydfil

  P/21/0232 Submitted 1 Jul 2021 170m away

  Refurbishment of flats, including the installation of external render and new windows

  Granted Full applications New dwelling Windows or glazing 9 docs

• 4 Penybryn Villas Penydarren Merthyr Tydfil CF47 9YD

  P/26/0059 Submitted 23 Mar 2026 202m away

  86% historically approved · decision due ~18 May

  Construct garage to the rear of the property with associated ground profiling works

  Status unknown Full applications 3 docs

• West Winds 9 Gwaunfarren Close Penydarren Merthyr Tydfil CF47 9AX

  P/21/0246 Submitted 8 Jul 2021 235m away

  Erection of single storey side extension, raised rear patio area, retaining wall and boundary fencing

  Granted Full applications Extension 11 docs
  Small domestic

• Land Adjacent To Hillcrest And Mitchell Crescent Penydarren Merthyr Tydfil

  P/26/0175 Submitted 29 Jul 2026 247m away

  98% historically approved · decision due ~23 Sep

  Discharge of conditions 4 (Construction Traffic Management Plan) and 11 (Construction Environment Management Plan) of planning permission P/25/0223 relating to a residential development.

  Status unknown Conditions New dwelling 12 docs

• 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
• P/25/0191 Status unknown

  9 Pond Row Abercanaid Merthyr Tydfil CF48 1YT

  Erection of single storey rear extension

  26 Jun 2026 Lawful development
• P/25/0338 Refused

  68 - 70 Brecon Road Merthyr Tydfil CF47 8NN

  Use of the property as a House in Multiple Occupancy (HMO)

  18 Dec 2025 Lawful development
• P/26/0074 Granted

  Unit 4 Pengarnddu Industrial Estate Dowlais Merthyr Tydfil CF48 2TA

  Installation of Solar PV panels to roof

  8 Apr 2026 Lawful development