80 Monthermer Road Cathays Cardiff CF24 4QY

This site has had 3 applications since 2025: 2 approved, 0 refused.

• 25/02210/CLPUD Granted

  80 Monthermer Road Cathays Cardiff CF24 4QY

  Rear and side dormer loft conversions.

  Decided 22 Oct 2025 Lawful development
• 25/01030/FUL Withdrawn

  80 Monthermer Road Cathays Cardiff CF24 4QY

  Conversion of existing class C4 HMO to large sui generis house in multiple-occupation with ground floor rear extension and dormer loft conversions

  Decided 9 Dec 2025 Full applications

1. 19 Mar 2025

   Received by Cardiff

2. 20 Mar 2025

   Validated

   Checked as complete and ready for consideration.

3. 10 Sep 2025

   Decision issued: Permission Granted

4. 6 Aug 2026

   Added to PlanIndex

Cardiff granted permission on 10 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.

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.

• 80 Monthermer Road Cathays Cardiff CF24 4QY

  25/02210/CLPUD Submitted 25 Sep 2025 50 yards away

  Rear and side dormer loft conversions.

  Granted Lawful development Loft or dormer 8 docs

• 80 Monthermer Road Cathays Cardiff CF24 4QY

  25/01030/FUL Submitted 6 May 2025 50 yards away

  Conversion of existing class C4 HMO to large sui generis house in multiple-occupation with ground floor rear extension and dormer loft conversions

  Withdrawn Full applications Extension Loft or dormer 9 docs

• 74 Monthermer Road Cathays Cardiff CF24 4QY

  21/01363/MNR Submitted 26 May 2021 50 yards away

  CONVERSION TO 4 FLATS WITH GROUND FLOOR REAR AND SIDE EXTENSIONS AND DORMER ROOF EXTENSION

  Granted Full applications New dwelling Extension +1 13 docs
  Several homes

• 66 Monthermer Road Cathays Cardiff CF24 4QY

  26/01510/FUL Submitted 21 Jul 2026 50 yards away

  90% historically approved · decision due ~15 Sep

  Alterations and extensions to 8-bed HMO to form 4 x 1-bed apartments and 1 studio

  Awaiting decision Full applications New dwelling Extension 7 docs

• 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

• 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

• 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