Dyffryn Isaf Sewage Treatment Works Ely Valley Road Ynysmaerdy Llantrisant

1. 20 Jul 2021

   Received by Rhondda Cynon Taf

2. 21 Jul 2021

   Validated

   Checked as complete and ready for consideration.

3. 10 Aug 2021

   Decision issued: Granted

4. 7 Aug 2026

   Added to PlanIndex

Rhondda Cynon Taf granted permission on 10 August 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.

This application sits outside the common categories, and the council record linked on this page sets out the specific procedure that applies. More in our guide to planning application types.

• Communication Station Ely Valley Road Ynysmaerdy Llantrisant CF72 8LN

  24/1163/CPRO Submitted 15 Nov 2024 100 yards away

  The provision of the following assets, Tertiary Treatment Pumping Station (TTPS); Motor Control Centre (MCC); Tertiary Solids Removal (TSR) Ferric Dosing Kiosk; Clean Backwash Storage Tank; Dirty Backwash Tank; Final Effluent (FE) Sampling Chamber; TSR Lift Pumping MCC Kiosk; Enhancement of the existing ferric dosing system and associated works

  Granted Lawful development

• Pantglas Farm Off Ely Valley Road Coedely Tonyrefail Porth CF72 8LN

  03/1217/FUL Submitted 11 Jul 2003 350 yards away

  Extensions and porch to existing farmhouse.

  Granted Full applications Extension
  Small domestic

• Llantrisant Forest/Smilog Woods Natural Resources Wales Llantrisant CF72 8LG

  25/0853/FUL Submitted 6 Aug 2025 450 yards away

  Proposed mobile food/drink van in the car park at Fforest Fawr.

  Granted Full applications 10 docs

• Awelfryn Cae Pantglas Ynysmaerdy Pontyclun Rhondda Cynon Taf CF72 8GX

  25/1029/RVOC Submitted 8 Oct 2025 0.3 miles away

  Application Reference Number: 20/0850/FUL, Condition 1 provides that construction of the proposed development should commence within 5 years of the grant of Planning Permission. Vary the condition to allow a further 5 years in which to start the development

  Granted Amendments 6 docs

• Awelfryn Pantglas Llantrisant

  05/1657/FUL Submitted 2 Sep 2005 0.3 miles away

  Proposed conversion of redundant farm building to residential.

  Granted Full applications

• Land To The North Of Ely Valley Road, Ynysmaerdy, Llantrisant

  25/1280/FUL Submitted 23 Dec 2025 0.3 miles away

  93% historically approved · decision due ~17 Feb

  Construction and Operation of solar photovoltaic farm including access, cable route, fencing, CCTV, internal service tracks, ancillary equipment and scheme of landscaping. (Revised Biodiversity Management Plan received 9th July 2026)

  Awaiting decision Full applications 58 docs

• 26/0287/DEM Granted

  Pontypridd Police Station And Berw Road Multi Storey Car Park Berw Road Pontypridd Rhondda Cynon Taf CF37 2TR

  Application for prior notification for the proposed demolition of Pontypridd Police Station and Berw Road Multi Storey Car Park.

  Received 2 Apr, published by the council 28 Jul 2026 Other
• 26/0352/AGR Granted

  Maendy Farm Lane To Maendy Brynna Rhondda Cynon Taf CF35 6NR

  New building for additional hay and machinery storage

  Received 20 Apr, published by the council 28 Jul 2026 Other
• 26/0215/AGR Refused

  Maendy Farm Lane To Maendy Brynna Rhondda Cynon Taf CF35 6NR

  New building for additional hay and machinery storage

  Received 9 Mar, published by the council 28 Jul 2026 Other
• 26/0161/DEM Awaiting decision

  Village Tavern Public House 25 Bute Street Treherbert Rhondda Cynon Taf CF42 5NP

  Demolition of existing Village Tavern Public House

  Received 24 Feb, published by the council 28 Jul 2026 Other
• 25/1245/AGR Refused

  Land At Elms Farm

  Hard-surfaced storage area for operational farm equipment, bales, harvested crops and soil-management materials (including solid form manure (SFM); and two covered lagoons for the storage of digestate and associated runoff from the storage slab.

  Received 6 Dec, published by the council 28 Jul 2026 Other