Planning application
40 Sierra Pines Mountain Ash Rhondda Cynon Taf CF45 3DS
Works: Extension
Permission granted. Work must normally begin within five years of the decision or the permission lapses.
Proposal
Construction of 2 storey duo-pitch extension to side elevation as a granny annexe
As published by the council, reference 25/1064/FUL
Application record
- Reference
- 25/1064/FUL
- Type
- Full Application
- Status
- Decided
- Decision
- Approve
- Received
- 16 Oct 2025
- Validated
- 28 Oct 2025
- Decided
- 12 Dec 2025
- Ward
- Mountain Ash
- Decision by
- Delegated Decision
- Postcode
- CF45 3DS
Site history
Applications at this address on the Rhondda Cynon Taf register
This site has had 2 applications since 2025: 2 approved, 0 refused.
-
26/0137/RVOC Granted
40 Sierra Pines Mountain Ash Rhondda Cynon Taf CF45 3DS
Variation of condition 7 and removal of conditions 5 and 6 of previous permission 25/1064/FUL
Timeline
Dates from the published record
-
16 Oct 2025
Received by Rhondda Cynon Taf
-
28 Oct 2025
Validated
Checked as complete and ready for consideration.
-
12 Dec 2025
Decision issued: Approve
-
28 Jul 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
1 later application on the register refers to this one:
-
26/0137/RVOC Granted
40 Sierra Pines Mountain Ash Rhondda Cynon Taf CF45 3DS
Variation of condition 7 and removal of conditions 5 and 6 of previous permission 25/1064/FUL
Documents
Plans, drawings, consultee responses and the officer's report
9 documents on file for this application
- HIGHWAYS RESPONSE
- LOCATION PLAN
- CROSS SECTION PLAN
- EXISITING GROUND FLOOR PLAN
- EXISITNG FIRST AND SECOND FLOOR PLAN
- PROPOSED FIRST FLOOR PLAN
- PROPOSED FLOOR PLAN
- EXISTING ELEVATION
- PROPOSED ELEVATIONS
Trade members open them from here.
Open the documentsWhat this grant of permission means
Rhondda Cynon Taf granted permission on 12 December 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.
About full applications
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.
Nearby applications
Within 500 metres
-
40 Sierra Pines Mountain Ash Rhondda Cynon Taf CF45 3DS
Variation of condition 7 and removal of conditions 5 and 6 of previous permission 25/1064/FUL
Granted Amendments 3 docs -
38 Sierra Pines Mountain Ash CF45 3DS
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 -
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293 Fernhill Mountain Ash Rhondda Cynon Taf CF45 3EN
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Retrospective application for raising of levels to the front garden.
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