398 Cyncoed Road Cyncoed Cardiff CF23 6SA

1. 10 Mar 2021

   Received by Cardiff

2. 23 Mar 2021

   Validated

   Checked as complete and ready for consideration.

3. 23 Jun 2021

   Decision issued: Permission Granted

4. 13 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within five years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 309 Cyncoed Road Cyncoed Cardiff CF23 6PB

  21/00602/DCH Submitted 10 Mar 2021 53m away

  SINGLE STOREY REAR EXTENSION AND EXTERNAL ALTERATIONS

  Granted Householder Extension 13 docs
  Small domestic

• 390 Cyncoed Road Cyncoed Cardiff CF23 6SA

  26/01705/CLPUD Submitted 11 Aug 2026 64m away

  Use of 390 Cyncoed Road as residential accommodation for up to six adults with mental health conditions, living together as a single household, with care and support provided by non-resident staff

  Granted Lawful development 7 docs

• 149 Rhyd Y Penau Road Cyncoed Cardiff CF23 6PZ

  25/01728/CLEUD Submitted 24 Jul 2025 75m away

  Lawful Development Certificate to confirm commencement of development (Section 56), post the approval reference 19/01966/DCH dated 14th October 2019 and subsequent variation of condition approval 24/01287/VAR dated 22nd July 2024.

  Granted Lawful development 6 docs

• Sandwick Court Cyncoed Cardiff CF23 6SS

  23/00140/WTTPF Submitted 20 Jan 2023 91m away

  Section Fell from the corner of Sandwick Court, section fell all 5/6 Western Rd Cedar Trees to approximately ground level. Grind out all 6 stumps to approximately 15 inches in depth.

  Granted Trees 3 docs

• 145 Rhyd Y Penau Road Cyncoed Cardiff CF23 6PZ

  26/01051/HSE Submitted 21 May 2026 98m away

  Replace conservatory and rebuild storeroom adding external staircase and terraced roof. No change to footprint.

  Granted Householder Extension 12 docs
  Small domestic

• 17 Pen-y-bryn Road Cyncoed Cardiff CF23 6QS

  23/00208/HSE Submitted 30 Jan 2023 108m away

  Construction of detached Granny Annex

  Granted Householder 8 docs
  Domestic

• 25/01805/HSE Refused

  12 Hamilton Street Pontcanna Cardiff CF11 9BP

  Replacement of the existing ground and first floor front bay windows with sliding sash uPVC windows.

  1 Aug 2025 Householder
• 26/01543/HSE Refused

  2 Camelot Way Thornhill Cardiff CF14 9AN

  Proposed open sided car port, drainage to one side and into a gravel soakaway.

  24 Jul 2026 Householder
• 26/01841/HSE Awaiting decision

  160 Heol Llanishen Fach Rhiwbina Cardiff CF14 6RG

  Two storey side extension and loft conversion with front and rear dormers

  1 Sep 2026 Householder
• 26/01505/HSE Granted

  100 Caer Wenallt Rhiwbina Cardiff CF14 7HQ

  Front & rear dormers, porch & internal alterations.

  20 Jul 2026 Householder
• 26/01835/HSE Awaiting decision

  35 Chamberlain Road Llandaff North Cardiff CF14 2LW

  Demolition of existing garage and erection of 2 storey side extension and alterations.

  31 Aug 2026 Householder