9 Crystal Glen Llanishen Cardiff CF14 5QH

1. 9 Oct 2024

   Received by Cardiff

2. 10 Oct 2024

   Validated

   Checked as complete and ready for consideration.

3. 2 Dec 2024

   Decision issued: Permission Granted

4. 4 Sep 2026

   Added to PlanIndex

Cardiff granted permission on 2 December 2024, 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.

• 10 Crystal Glen Llanishen Cardiff CF14 5QH

  PD/09/00547/E Submitted 21 Jul 2009 50 yards away

  GARAGE

  Refused Prior approval

• 4 Crystal Glen Llanishen Cardiff CF14 5QH

  20/01571/DCH Submitted 11 Aug 2020 50 yards away

  SINGLE STOREY REAR EXTENSION, DORMER LOFT EXTENSION, NEW ROOF TO EXISTING GARAGE AND ALTERATIONS TO EXISTING PORCH

  Granted Householder Extension Loft or dormer +1 14 docs
  Small domestic

• 4 Crystal Glen Llanishen Cardiff CF14 5QH

  25/00547/VAR Submitted 5 Mar 2025 50 yards away

  Single storey rear extension, dormer loft extension, new roof to existing garage and alterations to existing porch (Approved 4 June 2025- 20/01571/DCH):- Variation of Condition 2 (Approved Plans) of 20/01571/DCH to amend the approved scheme as follows: 1) Simplify extension roof build; 2) Provide a covered, decked area outside the extension

  Refused Amendments Extension Loft or dormer +1 5 docs
  Small domestic

• 22B Crystal Wood Road Heath Cardiff CF14 4HW

  26/00206/WTTPP Submitted 2 Feb 2026 50 yards away

  Trees 1-5: remove and shape the canopy to a retained height of 10 metres, removing branch tips back to alternative growing points leaving as natural a form as possible. There are 5 purple beech trees to the western boundary of the above property.

  Granted Trees 4 docs

• 1 Crystal Rise Heath Cardiff CF14 4HP

  21/01262/DCH Submitted 18 May 2021 100 yards away

  DEMOLITION OF EXISTING EXTENSIONS AND CONSTRUCTION OF SINGLE STOREY REAR EXTENSION

  Granted Householder Extension Demolition 18 docs
  Small domestic

• 39 Crystal Avenue Heath Cardiff CF23 5QL

  25/02979/CLPUD Submitted 19 Dec 2025 150 yards away

  Single storey rear and side extension.

  Granted Lawful development Extension 5 docs
  Small 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