40 Sierra Pines Mountain Ash Rhondda Cynon Taf CF45 3DS

This site has had 2 applications since 2025: 2 approved, 0 refused.

• 25/1064/FUL Granted

  40 Sierra Pines Mountain Ash Rhondda Cynon Taf CF45 3DS

  Construction of 2 storey duo-pitch extension to side elevation as a granny annexe

  Decided 12 Dec 2025 Full applications

1. 17 Feb 2026

   Received by Rhondda Cynon Taf

2. 19 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 10 Apr 2026

   Decision issued: Approve

4. 28 Jul 2026

   Added to PlanIndex

• 25/1064/FUL Granted

  40 Sierra Pines Mountain Ash Rhondda Cynon Taf CF45 3DS

  Construction of 2 storey duo-pitch extension to side elevation as a granny annexe

  Decided 12 Dec 2025 Full applications

Rhondda Cynon Taf granted permission on 10 April 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.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• 40 Sierra Pines Mountain Ash Rhondda Cynon Taf CF45 3DS

  25/1064/FUL Submitted 16 Oct 2025 4m away

  Construction of 2 storey duo-pitch extension to side elevation as a granny annexe

  Granted Full applications Extension 9 docs

• 38 Sierra Pines Mountain Ash CF45 3DS

  05/1789/FUL Submitted 27 Sep 2005 36m away

  Two storey extension to match all existing finishes. Remove existing garage door. Replace with window and brickwork to match existing.

  Granted Full applications Extension Windows or glazing

• Llethrau 5 CWM Alarch Close Mountain Ash CF45 3DT

  21/0183/10 Submitted 9 Feb 2021 91m away

  Single storey extension to front of the property.

  Granted Full applications Extension 9 docs
  Small domestic

• 8 Meadow Close Mountain Ash Rhondda Cynon Taf CF45 3DN

  25/0956/FUL Submitted 18 Sep 2025 162m away

  Proposed single-storey rear extension, with the demolition and relocation of the existing garage (additional plans received 15/10/2025)

  Granted Full applications Extension Demolition 9 docs
  Small domestic

• 293 Fernhill Mountain Ash Rhondda Cynon Taf CF45 3EN

  24/0916/FUL Submitted 6 Sep 2024 339m away

  Proposed Front Extension

  Granted Full applications Extension 8 docs

• 28 Forest View Mountain Ash CF45 3DU

  21/1034/10 Submitted 20 Jul 2021 470m away

  Retrospective application for raising of levels to the front garden.

  Granted Full applications 7 docs

• 26/0750/NMA Granted

  Former Cwmbach Primary School Bridge Road Cwmbach Aberdare CF44 0LS

  Removal of Condition 11 (Vehicular Crossing) of planning reference 23/0357/RVOC.

  28 Aug 2026 Amendments
• 26/0730/NMA Granted

  Parc Eirin Wilfried Way Tonyrefail CF39 8QD

  Application for a Non-Material Amendment to planning permission 15/0474/16 to amend the approved drawings to include the addition of battery storage units to individual plots, polycarbonate protective canopies and screening on south facing battery storage locations within the development and removal of the battery energy storage system previously shown at the hammerhead of road 15.

  24 Aug 2026 Amendments
• 26/0774/NMA Granted

  215 Court Street Tonypandy Rhondda Cynon Taf CF40 2RQ

  Non-material amendment to condition 2 requiring amendments to approved plan for planning permission reference 22/1249/10.

  8 Sep 2026 Amendments
• 26/0650/NMA Granted

  44 Tylchawen Terrace Tonyrefail Rhondda Cynon Taf CF39 8AH

  Non Material Amendment sought to previous planning permission 25/0092/FUL - Amend the two storey extension roof from pitched to flat roof, extend the first floor rear extension out to extent of ground floor extension, and amend locations of windows and doors on rear elevation.

  29 Jul 2026 Amendments
• 26/0707/NMA Granted

  33 Blaen Wern Cwmdare Aberdare Rhondda Cynon Taf CF44 8SD

  Non-Material Amendment to revise the wording of Condition 3 (Biodiversity Enhancement) of planning permission 26/0490/FUL.

  18 Aug 2026 Amendments