12 River Avenue Trelewis Treharris Merthyr Tydfil CF46 6EF

1. 2 Sep 2024

   Received by Merthyr Tydfil

2. 16 Oct 2024

   Decision issued: Full Approval

3. 16 Sep 2026

   Added to PlanIndex

Merthyr Tydfil granted permission on 16 October 2024, subject to any conditions on the decision notice. Work must normally begin within five years or the permission lapses. More in our guide to what happens after a planning decision.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 1 River Avenue Trelewis Treharris Merthyr Tydfil CF46 6EF

  P/24/0237 Submitted 15 Oct 2024 59m away

  Installation of an Air-Source Heat Pump

  Granted Full applications 8 docs

• 14 Ivy Close Trelewis Treharris CF46 6ET

  P/25/0293 Submitted 12 Nov 2025 74m away

  Proposed conversion of the garage into ancillary living accommodation and replace garage door with a window

  Granted Lawful development Windows or glazing 7 docs

• 14 Ivy Close Trelewis Treharris Merthyr Tydfil CF46 6ET

  P/26/0045 Submitted 2 Mar 2026 74m away

  Proposed conversion of the garage into ancillary living accommodation and replace garage door French doors with windows either side

  Granted Lawful development Windows or glazing 8 docs

• Land Between 26 & Farm Shop Gelligaer Road Trelewis Treharris

  P/23/0025 Submitted 24 Jan 2023 188m away

  Non-material amendment to planning permission P/22/0053 to adjust the layout of the dwellings.

  Granted Amendments 8 docs

• 20 Upland Drive Trelewis Treharris CF46 6FB

  P/24/0256 Submitted 30 Oct 2024 210m away

  Installation of air source heat pump to the rear of the property

  Granted Full applications 8 docs

• Ty-Tarw Llancaiach Fawr Farm Gelligaer Road Nelson Trelewis CF46 6ER

  25/0693/HH Submitted 13 Oct 2025 218m away

  Erect rear annex with interconnecting enclosed link

  Refused Householder 13 docs
  Domestic

• P/26/0194 Status unknown

  114 High Street Merthyr Tydfil CF47 8AP

  Change of use of Ground floor to A3 use and 1st 2nd &3rd floors to 2 self contained flats

  9 Sep 2026 Full applications
• P/26/0078 Granted

  73 Nightingale Street Abercanaid Merthyr Tydfil CF48 1EJ

  Single storey rear extension

  13 Apr 2026 Full applications
• P/26/0098 Granted

  25 Heather Court Quakers Yard Treharris CF46 5RP

  Erection of single storey extension

  12 May 2026 Full applications
• P/26/0096 Granted

  61 High Street Merthyr Tydfil CF47 8DE

  Change of use from shop to pilates studio/health suite/shop and replacement shop front

  30 Apr 2026 Full applications
• P/26/0112 Granted

  4 Bryntirion Street Dowlais Merthyr Tydfil CF48 3RY

  Erection of single storey rear extension

  29 Jun 2026 Full applications