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

1. 25 Aug 2026

   Received by Merthyr Tydfil

2. 2 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 20 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Merthyr Tydfil took a median of 48 days over the applications it decided in the last year.

The published feed does not show a live status for this application; the register on Merthyr Tydfil's own portal holds the authoritative version.

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.

• Pengarnddu Service Reservoir Pengarnddu Industrial Estate Dowlais Merthyr Tydfil

  P/21/0142 Submitted 16 Apr 2021 350 yards away

  Construction of a temporary haul road to facilitate construction of a new service reservoir

  Granted Full applications 15 docs

• Unit E Dowlais Top Retail Park Dowlais Merthyr Tydfil CF48 2TA

  P/26/0047 Submitted 14 Apr 2026 400 yards away

  Erection of 3 no. totem poles each to display Retail Park and traders' signage

  Granted Advertising 13 docs

• Pengarnddu Service Reservoir Pengarnddu Industrial Estate Dowlais Merthyr Tydfil CF48 2TA

  P/21/0157 Submitted 23 Apr 2021 0.3 miles away

  Variation of condition 2 of planning permission P/20/0228 to refer to an updated contract management plan

  Decided Amendments 3 docs

• Land Adjacent To Penywern Middle Pond Dowlais Merthyr Tydfil

  P/24/0220 Submitted 23 Sep 2024 0.3 miles away

  Installation of a House Martin Tower

  Granted Full applications 14 docs

• Unit E Pengarnddu Industrial Estate Dowlais Merthyr Tydfil CF48 2TA

  P/26/0027 Submitted 13 Feb 2026 0.3 miles away

  Discharge of conditions 3 and 4 of planning permission P/25/0256 - Cycle Stands and NBB

  Granted Conditions 7 docs

• Former Carpetright Unit Unit E Dowlais Top Retail Park Merthyr Tydfil CF48 2TA

  P/26/0001 Submitted 6 Jan 2026 0.3 miles away

  New shopfront

  Granted Full applications Windows or glazing 5 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/26/0078 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
• 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

  Received 30 Apr, published by the council 28 Jul 2026 Full applications