31 Allen Street Mountain Ash CF45 4BD

1. 21 Apr 2021

   Received by Rhondda Cynon Taf

2. 23 Apr 2021

   Validated

   Checked as complete and ready for consideration.

3. 21 Jun 2021

   Decision issued: Granted

4. 16 Sep 2026

   Added to PlanIndex

Rhondda Cynon Taf granted permission on 21 June 2021, 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.

• 34 Allen Street Mountain Ash CF45 4BD

  21/0758/39 Submitted 24 May 2021 50 yards away

  Non-material amendment of previously approved planning application 19/0495/10 to change the roof line and the second floor windows at the front of the property.

  Granted Amendments Windows or glazing 3 docs

• 46 Phillip Street Mountain Ash CF45 4BG

  21/0637/10 Submitted 28 Apr 2021 100 yards away

  Single storey extension.

  Granted Full applications Extension 3 docs
  Small domestic

• 50 Allen Street Mountain Ash CF45 4BB

  04/1254/FUL Submitted 25 Jun 2004 100 yards away

  Two storey rear extension.

  Granted Full applications Extension

• 59 Allen Street Mountain Ash

  04/0064/FUL Submitted 15 Jan 2004 100 yards away

  Double decker extension.

  Granted Full applications Extension 5 docs

• 40 London Street Caegarw Mountain Ash

  04/0577/FUL Submitted 25 Mar 2004 150 yards away

  Two storey extension

  Granted Full applications Extension 8 docs

• 9 Aber-FFRWD Road Mountain Ash CF45 4AR

  23/0331/39 Submitted 23 Mar 2023 300 yards away

  Non Material amendment sought to block up 3 windows from the original plans and a proposed pitched roof to the garage. 22/1187/15

  Granted Amendments Windows or glazing 3 docs

• 26/0942/FUL Awaiting decision

  Performance Physiotherapy 31 Gelliwastad Road Pontypridd Rhondda Cynon Taf CF37 2BN

  Single storey rear extension.

  Received 29 Oct, published by the council 2 Nov 2026 Full applications
• 26/0933/FUL Awaiting decision

  7 Graig Isaf Aberdare Rhondda Cynon Taf CF44 7RD

  Proposed dormer loft conversion to rear elevation

  Received 26 Oct, published by the council 28 Oct 2026 Full applications
• 26/0928/FUL Awaiting decision

  176 Glan-y-ffordd Taff's Well Rhondda Cynon Taf CF15 7SP

  Wrap around single storey extension.

  Received 23 Oct, published by the council 28 Oct 2026 Full applications
• 26/0927/FUL Awaiting decision

  57 Nythbran Terrace Porth Rhondda Cynon Taf CF39 9TP

  Proposed two storey rear extension.

  Received 23 Oct, published by the council 27 Oct 2026 Full applications
• 26/0923/FUL Awaiting decision

  Former Gelliwion Quarry Gelliwion Road Maes-y-coed Pontypridd Rhondda Cynon Taf CF37 1EY

  Detached dwelling with off street parking and associated works

  Received 22 Oct, published by the council 2 Nov 2026 Full applications