20 Upland Drive Trelewis Treharris CF46 6FB

1. 30 Oct 2024

   Received by Merthyr Tydfil

2. 6 Dec 2024

   Decision issued: Full Approval

3. 23 Aug 2026

   Added to PlanIndex

Merthyr Tydfil granted permission on 6 December 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.

• 12 River Avenue Trelewis Treharris Merthyr Tydfil CF46 6EF

  P/24/0210 Submitted 2 Sep 2024 250 yards away

  Convert garage to additional living accommodation

  Granted Full applications 8 docs

• 14 Ivy Close Trelewis Treharris CF46 6ET

  P/25/0293 Submitted 12 Nov 2025 250 yards 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 250 yards 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

• 1 River Avenue Trelewis Treharris Merthyr Tydfil CF46 6EF

  P/24/0237 Submitted 15 Oct 2024 250 yards away

  Installation of an Air-Source Heat Pump

  Granted Full applications 8 docs

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

  25/0693/HH Submitted 13 Oct 2025 350 yards away

  Erect rear annex with interconnecting enclosed link

  Refused Householder 13 docs
  Domestic

• Tophill Farm Gelligaer Road Gelligaer Hengoed CF82 8FY

  26/0134/NOTAF Submitted 25 Feb 2026 400 yards away

  Re-profile land and associated drainage works

  Granted Other 12 docs

• P/26/0176 Status unknown

  36 Berry Square Dowlais Merthyr Tydfil CF48 3AL

  Erection of two storey side extension, and the repositioning of parking area and vehicular entrance.

  Received 23 Sep, published by the council 13 Aug 2026 Full applications
• 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

  Received 9 Sep, published by the council 16 Sep 2026 Full applications
• P/26/0189 Status unknown

  National Grid Electricity Distribution South Wales Dowlais Grid Substation Pengarnddu Dowlais Merthyr Tydfil

  Removal of the existing tower and installation of new tower with new antennas and transmission dishes, emergency back up generator, cable gantry, feeder cables and associated access track, etc.

  Received 25 Aug, published by the council 2 Sep 2026 Full applications
• P/26/0078 Granted

  73 Nightingale Street Abercanaid Merthyr Tydfil CF48 1EJ

  Single storey rear extension

  Received 13 Apr, published by the council 28 Jul 2026 Full applications
• P/26/0098 Granted

  25 Heather Court Quakers Yard Treharris CF46 5RP

  Erection of single storey extension

  Received 12 May, published by the council 28 Jul 2026 Full applications