12 St Aidan Crescent Heath Cardiff CF14 4AU

1. 28 May 2021

   Received by Cardiff

2. 1 Jun 2021

   Validated

   Checked as complete and ready for consideration.

3. 29 Jul 2021

   Decision issued: Permission Granted

4. 29 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

• 14 St Aidan Crescent Heath Cardiff CF14 4AU

  24/02141/HSE Submitted 6 Sep 2024 9m away

  Demolition of existing rear extension and construction of a new single storey rear extension. Hip to gable roof extension with rear dormer loft conversion.

  Granted Householder Extension Loft or dormer +1 7 docs
  Small domestic

• 24 Rhydhelig Avenue Heath Cardiff CF14 4DD

  26/00515/HSE Submitted 16 Mar 2026 79m away

  First floor rear extension.

  Granted Householder Extension 10 docs
  Domestic

• 13 St Ambrose Road Heath Cardiff CF14 4BG

  25/02120/HSE Submitted 17 Sep 2025 105m away

  92% historically approved · decision due ~12 Nov

  Single storey rear extension

  Awaiting decision Householder Extension 6 docs
  Small domestic

• 19 St Alban Avenue Heath Cardiff CF14 4AS

  24/02150/HSE Submitted 9 Sep 2024 132m away

  Demolition of existing rear extension. Proposed single storey rear extension and new outbuilding to the rear of the property.

  Granted Householder Extension Demolition 9 docs
  Small domestic

• 35 St Agnes Road Heath Cardiff CF14 4AN

  26/01514/CLPUD Submitted 22 Jul 2026 144m away

  Part hip to gable roof extension and installation of rooflights to the front and rear roof slopes

  Granted Lawful development Extension Loft or dormer 11 docs

• 36 St Agnes Road Heath Cardiff CF14 4AP

  21/01319/DCH Submitted 24 May 2021 144m away

  GARAGE EXTENSION INCLUDING RAISING THE RIDGE HEIGHT

  Granted Householder Extension Roofing 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