Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

This site has had 8 applications since 2025: 7 approved, 0 refused.

• P/26/0066 Withdrawn

  Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  Works to the roof to include new walkways, fixed ladder access, new insulation and associated parapet and clerestory windows. Installation of new gutters and replacement of rainwater goods. Works to external elevation to include replacement windows, new doors and repair or replacement of lintels. Internal works to include the installation of new steel beams, repairs to timber reinforcements, new loft access hatch and bat boxes and minor revisions to the approved drainage scheme

  Decided 10 Apr 2026 Heritage and listed buildings
• P/26/0063 Granted

  Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  Discharge of condition 3 details of cabling routes of planning permission P/25/0272

  Decided 27 Apr 2026 Conditions
• P/25/0330 Granted

  Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  Works to the roof to include new walkways, fixed ladder access, new insulation and associated parapet and clerestory windows. Installation of new gutters and replacement of rainwater goods. Works to external elevation to include replacement windows, new doors and repair or replacement of lintels. Internal works to include the installation of new steel beams, repairs to timber reinforcements, new loft access hatch and bat boxes and minor revisions to the approve drainage scheme

  Decided 15 Jun 2026 Heritage and listed buildings
• P/25/0283 Granted

  Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  Discharge of Condition 5 CEMP of planning permission P25/0178

  Decided 31 Oct 2025 Conditions
• P/25/0249 Granted

  Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  Discharge of conditions 3 Archaeologist and 4 WPP

  Decided 14 Nov 2025 Conditions
• P/25/0272 Granted

  Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  The proposed works comprise: - Refurbishment of main WCs and secondary, currently disused, WCs. - Upgrades to and expansion of CCTV provision internally. - Upgrades to 2 no. external CCTV cameras - existing fixings to be reused. - Introduction of improved and more energy efficient exhibition lighting. - Installation of Wi-Fi throughout the museum spaces

  Decided 22 Dec 2025 Heritage and listed buildings
• P/25/0248 Granted

  Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  Discharge of condition 3 of permission P/25/0087 nominated archaeologist

  Decided 23 Oct 2025 Conditions

1. 30 Oct 2025

   Received by Merthyr Tydfil

2. 31 Oct 2025

   Decision issued: Discharge of Condition Approval

3. 28 Jul 2026

   Added to PlanIndex

Merthyr Tydfil granted permission on 31 October 2025, 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.

This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.

• Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  P/25/0248 Submitted 15 Sep 2025 57m away

  Discharge of condition 3 of permission P/25/0087 nominated archaeologist

  Granted Conditions 6 docs

• Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  P/26/0063 Submitted 24 Mar 2026 90m away

  Discharge of condition 3 details of cabling routes of planning permission P/25/0272

  Granted Conditions 7 docs

• Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  P/26/0066 Submitted 1 Apr 2026 92m away

  Works to the roof to include new walkways, fixed ladder access, new insulation and associated parapet and clerestory windows. Installation of new gutters and replacement of rainwater goods. Works to external elevation to include replacement windows, new doors and repair or replacement of lintels. Internal works to include the installation of new steel beams, repairs to timber reinforcements, new loft access hatch and bat boxes and minor revisions to the approved drainage scheme

  Withdrawn Heritage and listed buildings Windows or glazing 26 docs

• Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  P/25/0330 Submitted 12 Dec 2025 92m away

  Works to the roof to include new walkways, fixed ladder access, new insulation and associated parapet and clerestory windows. Installation of new gutters and replacement of rainwater goods. Works to external elevation to include replacement windows, new doors and repair or replacement of lintels. Internal works to include the installation of new steel beams, repairs to timber reinforcements, new loft access hatch and bat boxes and minor revisions to the approve drainage scheme

  Granted Heritage and listed buildings Windows or glazing 41 docs

• Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  P/25/0272 Submitted 16 Oct 2025 106m away

  The proposed works comprise: - Refurbishment of main WCs and secondary, currently disused, WCs. - Upgrades to and expansion of CCTV provision internally. - Upgrades to 2 no. external CCTV cameras - existing fixings to be reused. - Introduction of improved and more energy efficient exhibition lighting. - Installation of Wi-Fi throughout the museum spaces

  Granted Heritage and listed buildings 18 docs

• Cyfarthfa Castle Cyfarthfa Park Merthyr Tydfil CF47 8RE

  P/25/0249 Submitted 23 Oct 2025 138m away

  Discharge of conditions 3 Archaeologist and 4 WPP

  Granted Conditions 8 docs

• P/25/0245 Granted

  Land At Springfield Rise Treharris

  Discharge of conditions 3 (Material Finishes) and condition 4 (Retaining Works) of planning permission P/22/0298 relating to a residential scheme.

  11 Sep 2025 Conditions
• P/26/0193 Status unknown

  The Rose Retreat Spa Cyfarthfa Park Merthyr Tydfil CF47 8RE

  Discharge of conditions 5 (historic environment mitigation) and 9 (Landscape and Ecological Management Plan) of planning permission P/26/0041

  4 Sep 2026 Conditions
• P/26/0083 Granted

  Travel Inn Duffryn Road Pentrebach Merthyr Tydfil CF48 4BB

  Discharge of condition 8 (External Lighting) of planning permission P/24/0133 relating to an extension to the Travel Inn

  15 Apr 2026 Conditions
• P/26/0178 Status unknown

  Land Adjacent To Hillcrest And Mitchell Crescent Penydarren Merthyr Tydfil

  Discharge of conditions 12 (Ecological Enhancements) and 17 (Affordable Housing) of planning permission P/25/0223 relating to a residential development.

  10 Aug 2026 Conditions
• P/26/0175 Status unknown

  Land Adjacent To Hillcrest And Mitchell Crescent Penydarren Merthyr Tydfil

  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.

  29 Jul 2026 Conditions