20 James Street Butetown Cardiff CF10 5EX

1. 27 Aug 2025

   Received by Cardiff

2. 22 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 22 October 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Cardiff took a median of 56 days over the applications it decided in the last year.

This application is with Cardiff for determination, against a statutory target of eight weeks. Over the last year Cardiff decided full applications in a median of 86 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 1 Mount Stuart Arcade Mount Stuart Square Butetown Cardiff CF10 5EE

  26/00529/LBC Submitted 16 Mar 2026 50 yards away

  96% historically approved · decision due ~11 May

  Conversion of existing commercial space into a two bedroom dwelling. Alterations to the existing shop front and first floor windows.

  Awaiting decision Heritage and listed buildings Windows or glazing 9 docs
  Domestic

• 1 Mount Stuart Arcade Mount Stuart Square Butetown Cardiff CF10 5EE

  26/00528/FUL Submitted 16 Mar 2026 50 yards away

  91% historically approved · decision due ~11 May

  Conversion of existing commercial space into a two bedroom dwelling. Alterations to the existing shop front and first floor windows.

  Awaiting decision Full applications Windows or glazing 11 docs
  Domestic

• 16 Mount Stuart Square Butetown Cardiff CF10 5DP

  26/00018/FUL Submitted 7 Jan 2026 50 yards away

  Change of Use of the Second and Third floors from Office (B1) Use to a Dwelling (C3) Use. External works to include the addition of a window to the front elevation, new canopy to the entrance, and roof pitch alterations.

  Refused Full applications Windows or glazing 9 docs
  Domestic

• Louisa Place Butetown Cardiff CF10 5BY

  23/00156/DOC Submitted 23 Jan 2023 50 yards away

  Discharge of conditions 2 (Ecological Enhancement) and 3 (Proposed Boundary treatment on James Street) of 22/02348/FUL

  Granted Conditions 9 docs

• Bay Chambers West Bute Street Butetown Cardiff CF10 5BB

  21/00580/MJR Submitted 8 Mar 2021 50 yards away

  DISCHARGE OF CONDITION 14 (FOUL DRAINAGE SCHEME) OF 17/00699/MJR

  Granted Conditions 6 docs

• Unit 2 3 - 11 West Bute Street Butetown Cardiff CF10 5EN

  26/00486/FUL Submitted 11 Mar 2026 50 yards away

  Change of use from class A1 to D1.

  Granted Full applications 7 docs

• 26/01908/FUL Awaiting decision

  9 St Peter's Street Roath Cardiff CF24 3BA

  Demolition of existing two storey side extension and replacement with new remodelled two storey extension

  Received 10 Sep, published by the council 13 Sep 2026 Full applications
• 26/01395/FUL Granted

  190 Aberporth Road Llandaff North Cardiff CF14 2PS

  Change of use from c3 dwelling house to c4 6 bed HMO.

  Received 6 Jul, published by the council 22 Jul 2026 Full applications
• 26/01033/FUL Granted

  Llanmaes Estate Office Michaelston Road St Fagans Cardiff CF5 6DU

  Change of use to a physiotherapy clinic

  Received 19 May, published by the council 22 Jul 2026 Full applications
• 26/01706/FUL Granted

  Second Floor 2 Kingsway Cathays Cardiff CF10 3FD

  Install 4 grilles to the rear of the building

  Received 11 Aug, published by the council 17 Aug 2026 Full applications
• 26/01708/FUL Granted

  Ground Floor 37 Whitchurch Road Gabalfa Cardiff CF14 3JN

  CHANGE OF USE FROM TANNING SALON TO PROFFESIONAL ADVICE/SOLICITOR SERIVCES

  Received 11 Aug, published by the council 17 Aug 2026 Full applications