139 Heol Isaf Radyr Cardiff CF15 8DX

1. 7 Aug 2026

   Received by Cardiff

2. 13 Aug 2026

   Added to PlanIndex

3. 22 Sep 2026

   Decision issued: Permission Granted

Cardiff granted permission on 22 September 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 116 Heol Isaf Radyr Cardiff CF15 8EA

  21/02125/DCH Submitted 31 Aug 2021 100 yards away

  TWO STOREY EXTENSION TO SOUTH WEST CORNER OF HOUSE, SINGLE STOREY REAR EXTENSION AND REPLACEMENT OF THE EXISTING GARAGE WITH A NEW LARGER GARAGE

  Granted Householder Extension 7 docs
  Small domestic

• 116 Heol Isaf Radyr Cardiff CF15 8EA

  22/01320/DCH Submitted 20 Jun 2022 100 yards away

  ALTERATION TO THE SOUTH WEST CORNER EXTENSION. GROUND FLOOR WINDOWS REPLACED WITH NEW GLAZED DOOR - PREVIOUSLY APPROVED UNDER 21/02125/DCH

  Granted Householder Extension Windows or glazing 6 docs
  Domestic

• Phase 1B Land North Of Llantrisant Road North West Cardiff

  24/00251/NMA Submitted 2 Feb 2024 150 yards away

  Proposed Non-Material Amendment to reserved matters approval 18/01318/MJR (as amended by NMA refs 21/02744/MJR, 21/03007/MJR and 22/01507/MJR) - Revise the wording of Condition 8 to include a reference to the recently approved NMA (23/02575/NMA) that approved revised details of the surface water drainage scheme for Llantrisant Rd North - Northern Drainage Catchment.

  Granted Amendments 5 docs

• Phase 1B Land North Of Llantrisant Road North West Cardiff

  22/01507/MJR Submitted 14 Jul 2022 150 yards away

  REVISE WORDING OF CONDITION 8 OF RESERVED MATTERS APPROVAL 18/01318/MJR (AS AMENDED BY NMA 21/02744/MJR AND NMA 21/03007/MJR) TO REMOVE REFERENCE TO THE CONDITION BEING A 'PRE-COMMENCEMENT' CONDITION TO IT BEING A 'PRE-OCCUPATION' CONDITION

  Granted Amendments 5 docs

• Phase 1B Land North Of Llantrisant Road North West Cardiff

  22/01508/MJR Submitted 14 Jul 2022 150 yards away

  REVISE WORDING OF CONDITION 8 OF RESERVED MATTERS APPROVAL 18/01318/MJR IN ORDER FOR IT TO READ AS A COMPLIANCE CONDITION

  Withdrawn Amendments 3 docs

• 1 Heol Roald Dahl Radyr Cardiff CF15 8GT

  24/02605/CLPUD Submitted 4 Nov 2024 200 yards away

  Proposed loft conversion with three pitched roof dormers to the rear elevation and three velux rooflights to the front elevation.

  Granted Lawful development Loft or dormer 5 docs

• 26/02112/HSE Awaiting decision

  7 Penydarren Drive Whitchurch Cardiff CF14 2TT

  Proposed Single Storey Side/Rear Extension with Garage Conversion

  Received 7 Oct, published by the council 9 Oct 2026 Householder
• 26/02113/HSE Awaiting decision

  78 Mill Road Lisvane Cardiff CF14 0UG

  PROPOSED FIRST FLOOR EXTENSION AT SIDE OF HOUSE

  Received 7 Oct, published by the council 9 Oct 2026 Householder
• 26/01702/HSE Granted

  45 Gwern Rhuddi Road Cyncoed Cardiff CF23 6PS

  Two storey and single storey rear extensions (development similar to that as approved under 25/00533/HSE with additional first floor part).

  Received 10 Aug, published by the council 24 Aug 2026 Householder
• 26/02104/HSE Awaiting decision

  15 Brynteg Rhiwbina Cardiff CF14 6TS

  Proposed single storey rear extension to the existing semi-detached dwelling including minor internal and external modifications

  Received 6 Oct, published by the council 9 Oct 2026 Householder
• 26/02102/HSE Awaiting decision

  49 Kimberley Road Penylan Cardiff CF23 5DL

  Proposed ground floor rear side return extension

  Received 6 Oct, published by the council 9 Oct 2026 Householder