51 Rhymney Street Cathays Cardiff CF24 4DH

1. 16 Jul 2025

   Received by Cardiff

2. 17 Jul 2025

   Validated

   Checked as complete and ready for consideration.

3. 10 Oct 2025

   Decision issued: Permission Granted

4. 13 Sep 2026

   Added to PlanIndex

Cardiff granted permission on 10 October 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.

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.

• 55 Rhymney Street Cathays Cardiff CF24 4DH

  26/00836/FUL Submitted 28 Apr 2026 50 yards away

  Change of Use to Class C4 House in Multiple Occupation with rear and side extensions and a rear dormer roof extension.

  Granted Full applications Extension Loft or dormer 8 docs

• 57 Rhymney Street Cathays Cardiff CF24 4DH

  26/00959/FUL Submitted 12 May 2026 50 yards away

  Change of use to class C4 House in Multiple Occupation (HMO) with rear extensions and dormer loft conversion.

  Withdrawn Full applications Extension Loft or dormer 7 docs

• 28 Coburn Street Cathays Cardiff CF24 4BS

  21/01175/DCH Submitted 10 May 2021 50 yards away

  SMALL INCREASE TO WIDTH TO EXISTING 2 STOREY REAR PROJECTION, 2 VELUX ROOFLIGHTS, WIDEN EXISTING REAR PATIO DOOR AND REMOVAL OF EXISTING CHIMNEY

  Granted Householder Loft or dormer 9 docs
  Domestic

• 42 Rhymney Street Cathays Cardiff CF24 4DG

  26/00898/FUL Submitted 6 May 2026 50 yards away

  Demolition and partial reduction of rear extension; erection of rear dormer roof extension; and internal alterations to facilitate the change of use from a dwellinghouse (C3) to a 6-bedroom House in Multiple Occupation (C4)

  Granted Full applications Extension Loft or dormer +1 8 docs
  Domestic

• 81 Rhymney Street Cathays Cardiff CF24 4DH

  23/00354/CLU Submitted 15 Feb 2023 50 yards away

  Existing Use as a 6 bed House in Multiple Occupation (HMO)

  Granted Lawful development 8 docs

• 11 Coburn Street Cathays Cardiff CF24 4BQ

  26/00313/CLPUD Submitted 13 Feb 2026 100 yards away

  Erection of ground floor rear extension, rear dormer roof extension and addition of rooflight to the front roof elevation

  Granted Lawful development Extension Loft or dormer 7 docs

• 26/01337/FUL Granted

  37 Wyeverne Road Cathays Cardiff CF24 4BG

  Extensions and alterations and change of use from dwelling (C3) to House in Multiple Occupation (C4) (HMO).

  Received 26 Jun, published by the council 22 Jul 2026 Full applications
• 26/01728/FUL Granted

  Unit 7b Cardiff Industrial Park Pennine Close Llanishen Cardiff CF14 5DN

  Installation of 5 no. external air source heat pump units

  Received 13 Aug, published by the council 24 Aug 2026 Full applications
• 26/01729/FUL Granted

  Unit 7b Cardiff Industrial Park Pennine Close Llanishen Cardiff CF14 5DN

  Replacement roller shutter.

  Received 13 Aug, published by the council 24 Aug 2026 Full applications
• 26/01216/FUL Granted

  4 Callaghan Square Butetown Cardiff CF10 5BT

  Internal and external alterations to an existing office building at ground floor and part first floor

  Received 12 Jun, published by the council 22 Jul 2026 Full applications
• 26/02099/FUL Awaiting decision

  20 Janet Street Splott Cardiff CF24 2BD

  Proposed conversion of dwelling to form two flats

  Received 5 Oct, published by the council 9 Oct 2026 Full applications