11 Thornbury Close Swansea Road Merthyr Tydfil CF48 1HP

1. 21 Jan 2026

   Received by Merthyr Tydfil

2. 17 Mar 2026

   Decision issued: Full Approval

3. 28 Jul 2026

   Added to PlanIndex

Merthyr Tydfil granted permission on 17 March 2026, 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.

• Elland House 12 Fair View Estate Old Winch Fawr Road Swansea Road Merthyr Tydfil CF48 1HW

  P/23/0076 Submitted 21 Mar 2023 66m away

  Non material amendment to planning permission P/22/0226 to reduce the size of the rear extension

  Granted Amendments Extension 5 docs

• 56 Pantygerdynen Swansea Road Merthyr Tydfil CF48 1HR

  P/23/0148 Submitted 6 Sep 2024 123m away

  Change of use of garage to create a one bedroom annex with external balcony

  Granted Full applications 18 docs

• 70 Swansea Road Swansea Road Merthyr Tydfil CF48 1HR

  P/26/0061 Submitted 27 Mar 2026 154m away

  Non material amendment of planning application P/25/0076 to include a roof light in the front roof slope of the two storey side extension

  Granted Amendments Extension Loft or dormer 5 docs

• 70 Swansea Road Swansea Road Merthyr Tydfil CF48 1HR

  P/25/0076 Submitted 28 Jul 2025 154m away

  Two storey and single storey side extension, installation of solar panels to roof, widened vehicular access and parking area and re-profiling of land

  Granted Full applications Extension 13 docs
  Small domestic

• 74 Swansea Road Swansea Road Merthyr Tydfil CF48 1HR

  P/24/0259 Submitted 8 Nov 2024 158m away

  Single storey side extension with alterations

  Granted Lawful development Extension 6 docs
  Small domestic

• 74 Swansea Road Clwydyfawr Merthyr Tydfil CF48 1HR

  P/25/0239 Submitted 11 Sep 2025 159m away

  Retention of outbuilding for dog grooming parlour with garden shed and re-profiling of ground levels

  Granted Full applications 10 docs
  Small 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