48 Harriet Street Cathays Cardiff CF24 4BW

1. 11 Oct 2022

   Received by Cardiff

2. 25 Nov 2022

   Validated

   Checked as complete and ready for consideration.

3. 8 Feb 2023

   Decision issued: Permission Granted

4. 6 Aug 2026

   Added to PlanIndex

Cardiff granted permission on 8 February 2023, 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.

• Flat 4 And 5 44 Harriet Street Cathays Cardiff CF24 4BY

  26/01126/FUL Submitted 2 Jun 2026 50 yards away

  90% historically approved · decision due ~28 Jul

  Change of use from 2 no. 2-bedroom self-contained flats (Use class C3) to 2 no. 3-bedroom Houses in Multiple Occupation (Use Class C4).

  Awaiting decision Full applications New dwelling 8 docs

• 41 Harriet Street Cathays Cardiff CF24 4BW

  25/01375/FUL Submitted 13 Jun 2025 50 yards away

  Re-location of windows and conversion of loft to bedrooms to existing C4 House of multiple Occupation.

  Granted Full applications Windows or glazing 8 docs

• Land On The North Side Thesiger Street Cathays Cardiff

  26/01756/FUL Submitted 18 Aug 2026 50 yards away

  90% historically approved · decision due ~13 Oct

  Construction of new HMO building and storage unit on existing storage yard.

  Awaiting decision Full applications 21 docs

• 53 Harriet Street Cathays Cardiff CF24 4BW

  25/02530/FUL Submitted 3 Nov 2025 50 yards away

  Ground and first floor rear extensions, rear dormer roof extension, ground level changes and change of use to class C4 House in Multiple Occupation.

  Refused Full applications Extension Loft or dormer 9 docs

• 70 Thesiger Street Cathays Cardiff CF24 4BP

  23/02046/FUL Submitted 1 Sep 2023 50 yards away

  Demolition of existing derelict dwelling and erection of new C4 House in Multiple Occupation

  Granted Full applications Demolition 15 docs
  Domestic

• 33 Harriet Street Cathays Cardiff CF24 4BU

  25/01745/HSE Submitted 28 Jul 2025 50 yards away

  Ground floor rear extension to existing class C4 House in Multiple Occupation (HMO)

  Granted Householder Extension 7 docs
  Domestic

• 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