13 Gwynant Crescent Cyncoed Cardiff CF23 6LT

1. 7 Aug 2025

   Received by Cardiff

2. 8 Aug 2025

   Validated

   Checked as complete and ready for consideration.

3. 5 Sep 2025

   Decision issued: Permission Granted

4. 22 Jul 2026

   Added to PlanIndex

Cardiff granted permission on 5 September 2025, 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.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• 57 Celyn Avenue Cyncoed Cardiff CF23 6EJ

  26/01229/NMA Submitted 15 Jun 2026 100 yards away

  Proposed Non-Material Amendment to Planning Permission 25/02767/HSE- minor alterations including a rooflight to the front roof slope and addition of a small window to the front elevation

  Granted Amendments Loft or dormer Windows or glazing 10 docs

• 57 Celyn Avenue Cyncoed Cardiff CF23 6EJ

  26/01769/NMA Submitted 19 Aug 2026 100 yards away

  Proposed Non-Material Amendment to Planning Permission 25/02767/HSE - To reduce rear extension size and install new doors/windows and alter proposed window sizes

  Granted Amendments Extension Windows or glazing 10 docs

• 57 Celyn Avenue Cyncoed Cardiff CF23 6EJ

  25/02767/HSE Submitted 25 Nov 2025 100 yards away

  Single storey rear extension, front porch extension, front and rear dormer roof extension, provision of additional driveway space and associated external alterations.

  Granted Householder Extension Loft or dormer 15 docs
  Small domestic

• 1 Duffryn Avenue Lakeside Cardiff CF23 6LE

  22/01561/DCH Submitted 21 Jul 2022 100 yards away

  PROPOSED FRONT AND REAR SINGLE STOREY EXTENSIONS

  Granted Householder Extension 13 docs
  Small domestic

• 50 Celyn Avenue Cyncoed Cardiff CF23 6EP

  25/00930/HSE Submitted 22 Apr 2025 100 yards away

  Proposed part single, part two storey rear and side extension and rear dormer loft conversion.

  Granted Householder Extension Loft or dormer 10 docs
  Domestic

• 17 Duffryn Avenue Cyncoed Cardiff CF23 6LE

  24/02667/HSE Submitted 12 Nov 2024 100 yards away

  Proposed front elevation porch extension

  Granted Householder Extension 7 docs
  Small domestic

• 26/01324/NMA Granted

  Phase 4A Of Land North Of Junction 33 Cardiff

  Proposed Non-Material Amendment to Planning Permission 23/02401/RES - 1) Replace approved boundary treatment plan with new proposed plan. 2) Alterations to external surface finishes.

  Received 24 Jun, published by the council 13 Aug 2026 Amendments
• 26/01857/NMA Granted

  14 Cotswold Avenue Lisvane Cardiff CF14 0TA

  Proposed Non-Material Amendment to Planning Permission 18/00385/DCH.

  Received 3 Sep, published by the council 13 Sep 2026 Amendments
• 26/02083/NMA Awaiting decision

  22 Swanage Close Trowbridge Cardiff CF3 0LS

  Proposed Non-Material Amendment to Planning Permission 23/01834/FUL - to amend extension junction of existing roof to allow formation of hipped roof

  Received 2 Oct, published by the council 6 Oct 2026 Amendments
• 26/01987/NMA Granted

  Land At Dumballs Road Butetown Cardiff

  Proposed Non-Material Amendment to Planning Permission 06/01823/C - Life Critical Fire Safety Works.

  Received 18 Sep, published by the council 6 Oct 2026 Amendments
• 26/01711/NMA Granted

  25 Brook Road Fairwater Cardiff CF5 3AW

  Proposed Non-Material Amendment to Planning Permission 24/00292/HSE - To change the roof design of the approved first-floor extension

  Received 11 Aug, published by the council 17 Aug 2026 Amendments