18 Castlefield Place Mynachdy Cardiff CF14 3DU

1. 22 Jan 2026

   Received by Cardiff

2. 11 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Apr 2026

   Decision issued: Permission Granted

4. 22 Jul 2026

   Added to PlanIndex

Cardiff granted permission on 24 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.

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.

• 209 North Road Mynachdy Cardiff CF14 3AG

  23/00165/HSE Submitted 24 Jan 2023 50 yards away

  Two Storey Side Extension and Ground Floor Rear Extension and alterations

  Granted Householder Extension 7 docs
  Domestic

• 60 Mynachdy Road Mynachdy Cardiff CF14 3EA

  21/01747/MNR Submitted 13 Jul 2021 100 yards away

  CHANGE OF USE OF DWELLING TO 6 BED HOUSE IN MULTIPLE OCCUPATION WITH TWO STOREY SIDE AND SINGLE STOREY REAR EXTENSIONS

  Withdrawn Full applications Extension 20 docs
  Small domestic

• 60 Mynachdy Road Mynachdy Cardiff CF14 3EA

  23/00030/FUL Submitted 5 Jan 2023 100 yards away

  Ground and First Floor Rear Extensions and rear dormer roof extension, converting dwelling house into House in Multiple Occupation

  Granted Full applications Extension Loft or dormer 12 docs
  Domestic

• 181 North Road Mynachdy Cardiff CF14 3AG

  24/02586/HSE Submitted 30 Oct 2024 100 yards away

  Ground & first floor rear extensions, removal of chimney, hip to gable roof extension with rear dormer loft conversion.

  Granted Householder Extension Loft or dormer 9 docs
  Domestic

• 65 Mynachdy Road Mynachdy Cardiff CF14 3DX

  22/03051/NMA Submitted 21 Dec 2022 150 yards away

  Proposed Non-Material Amendment to Planning Permission 18/00626/MNR - Reduction to scale of rear single storey extension. Alterations to scale and setting of rear dormer extension, position of roof light on front elevation and alterations to ground floor and second floor window and door units, with option to maintain pebbledash or through colour render to all elevations, removal of front cantilevered porchroof, all with associated external works

  Granted Amendments Extension Loft or dormer +1 6 docs
  Small domestic

• 30 Maelog Place Mynachdy Cardiff CF14 3ED

  23/02392/HSE Submitted 13 Oct 2023 150 yards away

  Retention of revised two storey rear extension.

  Granted Householder Extension 9 docs
  Domestic

• 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