12 Denison Way St Fagans Cardiff CF5 4SF

1. 12 Aug 2024

   Received by Cardiff

2. 9 Sep 2024

   Validated

   Checked as complete and ready for consideration.

3. 21 Oct 2024

   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

• 25 Nant-y-drope St Fagans Cardiff CF5 4UF

  25/02509/HSE Submitted 30 Oct 2025 144m away

  Wrap around single storey extension to contain a granny flat and day room.

  Granted Householder Extension 14 docs
  Small domestic

• 28 Deepwood Close St Fagans Cardiff CF5 4SJ

  26/01310/WTTPP Submitted 22 Jun 2026 240m away

  Reduce the group of hornbeams (G1) and the bottom of the garden by 2.5 - 3 meters. Thin the dense crown by 15% and raise the canopy where sucker growth and branches have drooped down to 3 meters.

  Granted Trees 4 docs

• 13 Great House Farm Michaelston Road St Fagans Cardiff CF5 6FL

  21/00798/DCH Submitted 29 Mar 2021 247m away

  SINGLE STOREY SIDE EXTENSION

  Granted Householder Extension 9 docs
  Small domestic

• The Barn Great House Farm Michaelston Road St Fagans Cardiff CF5 6FL

  25/01709/LBC Submitted 22 Jul 2025 257m away

  Proposed single-storey extension to link the existing main house and outbuilding.

  Refused Heritage and listed buildings Extension 7 docs
  Small domestic

• The Barn Great House Farm Michaelston Road St Fagans Cardiff CF5 6FL

  25/01665/HSE Submitted 16 Jul 2025 259m away

  Proposed single-storey extension to link the existing main house and outbuilding.

  Refused Householder Extension 7 docs
  Small domestic

• 1 Swallowhurst Close Ely Cardiff CF5 4TF

  26/00939/HSE Submitted 11 May 2026 311m away

  SIngle storey side extension.

  Granted Householder Extension 8 docs
  Small 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