136 Tewkesbury Street Cathays Cardiff CF24 4QS

1. 18 May 2026

   Received by Cardiff

2. 22 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 15 Jul 2026

   Decision issued: Refuse

4. 22 Jul 2026

   Added to PlanIndex

Cardiff refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• 99 Monthermer Road Cathays Cardiff CF24 4QY

  23/02854/HSE Submitted 5 Dec 2023 50 yards away

  Rear and side ground floor extension and rear dormer extension.

  Granted Householder Extension Loft or dormer 7 docs
  Domestic

• 119 Tewkesbury Street Cathays Cardiff CF24 4QS

  26/00744/CLEUD Submitted 14 Apr 2026 50 yards away

  Use of the property as a 5-bedroom House in Multiple Occupation.

  Granted Lawful development 5 docs

• 112 Tewkesbury Street Cathays Cardiff CF24 4QS

  22/03049/CLD Submitted 21 Dec 2022 50 yards away

  Rear Dormer Roof Extension and Rear Single Storey Extension

  Granted Lawful development Extension Loft or dormer 6 docs
  Small domestic

• 90 Monthermer Road Cathays Cardiff CF24 4QY

  20/01472/MNR Submitted 29 Jul 2020 50 yards away

  CONVERSION TO TWO FLATS WITH GROUND FLOOR REAR EXTENSION

  Granted Full applications New dwelling Extension 14 docs
  Several homes

• 14 Hazeldene Avenue Cathays Cardiff CF24 4QP

  26/00668/HSE Submitted 31 Mar 2026 100 yards away

  Ground floor rear extension and dormer loft conversion to existing HMO.

  Granted Householder Extension Loft or dormer 9 docs
  Domestic

• 80 Monthermer Road Cathays Cardiff CF24 4QY

  25/02210/CLPUD Submitted 25 Sep 2025 100 yards away

  Rear and side dormer loft conversions.

  Granted Lawful development Loft or dormer 8 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