8 Cyncoed Road Penylan Cardiff CF23 5SG

1. 22 Jul 2025

   Received by Cardiff

2. 31 Jul 2025

   Validated

   Checked as complete and ready for consideration.

3. 23 Sep 2025

   Decision issued: Permission Granted

4. 22 Jul 2026

   Added to PlanIndex

Cardiff granted permission on 23 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.

• 9 Pen-Y-Lan Terrace Penylan Cardiff CF23 9EU

  21/00856/DCH Submitted 7 Apr 2021 50 yards away

  SINGLE STOREY REAR EXTENSION

  Granted Householder Extension 8 docs
  Small domestic

• 12 Pen-y-lan Terrace Penylan Cardiff CF23 9EU

  23/00171/CLD Submitted 24 Jan 2023 100 yards away

  Loft conversion to include a rear dormer window

  Granted Lawful development Loft or dormer Windows or glazing 9 docs

• 7 Llwyn-y-grant Road Penylan Cardiff CF23 9ES

  22/02528/HSE Submitted 25 Oct 2022 100 yards away

  Loft Conversion including new gabled dormer roof and Velux windows to front elevation

  Refused Householder Loft or dormer Windows or glazing 6 docs
  Domestic

• 8 The Retreat Penylan Cardiff CF23 5QZ

  26/01917/FUL Submitted 11 Sep 2026 100 yards away

  90% historically approved · decision due ~6 Nov

  Proposed conversion of roof space, side & rear extensions & internal alterations to form a HMO

  Awaiting decision Full applications Extension 18 docs

• 7 Llwyn-y-grant Terrace Penylan Cardiff CF23 9EW

  24/01839/HSE Submitted 6 Aug 2024 100 yards away

  Installation of an Air Source Heat Pump at rear within 3m of boundary shared with neighbour.

  Granted Householder 5 docs
  Domestic

• Penylan House Pen-y-lan Road Penylan Cardiff CF23 5YG

  25/01021/ADV Submitted 2 May 2025 150 yards away

  2no. wall mounted signs

  Granted Advertising 7 docs

• 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