6 Celyn Avenue Cyncoed Cardiff CF23 6EN

1. 19 Mar 2025

   Received by Cardiff

2. 8 Apr 2025

   Validated

   Checked as complete and ready for consideration.

3. 15 Jun 2026

   Decision issued: Permission Granted

4. 29 Aug 2026

   Added to PlanIndex

Cardiff granted permission on 15 June 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.

• 8 Celyn Avenue Cyncoed Cardiff CF23 6EN

  26/02033/CLEUD Submitted 22 Sep 2026 50 yards away

  93% historically approved · decision due ~17 Nov

  Rear extensions and alterations to the property.

  Awaiting decision Lawful development Extension 5 docs

• 7 Celyn Avenue Cyncoed Cardiff CF23 6EH

  23/02280/HSE Submitted 29 Sep 2023 50 yards away

  Part single, part double story side and rear extension with rear dormer loft conversion and demolition of existing garage.

  Granted Householder Extension Loft or dormer +1 10 docs
  Domestic

• 11 Celyn Avenue Cyncoed Cardiff CF23 6EH

  25/02809/HSE Submitted 27 Nov 2025 50 yards away

  Ground and first floor rear extension, rear dormer loft conversion and new entrance porch with external alterations.

  Granted Householder Extension Loft or dormer 16 docs
  Small domestic

• 8 Lakeside Drive Cyncoed Cardiff CF23 6DD

  26/01740/HSE Submitted 17 Aug 2026 100 yards away

  93% historically approved · decision due ~12 Oct

  Demolition of garage. Double storey side extension, single storey side extension, rear first floor balcony. External chimney and chimney breast to be demolished.

  Awaiting decision Householder Extension Demolition 34 docs
  Small domestic

• 12 Lakeside Drive Cyncoed Cardiff CF23 6DD

  26/00024/HSE Submitted 7 Jan 2026 100 yards away

  Part single-storey and part double-storey side and rear extension, including external works.

  Granted Householder Extension 9 docs
  Small domestic

• 1 Leven Close Lakeside Cardiff CF23 6DN

  21/01958/DCH Submitted 4 Aug 2021 150 yards away

  TWO STOREY SIDE EXTENSION

  Granted Householder Extension 6 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