47 Mardy Street Grangetown Cardiff CF11 6QU

1. 19 Jul 2022

   Received by Cardiff

2. 21 Jul 2022

   Validated

   Checked as complete and ready for consideration.

3. 20 Feb 2023

   Decision issued: Permission Granted

4. 13 Aug 2026

   Added to PlanIndex

Cardiff granted permission on 20 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.

• 31 Mardy Street Grangetown Cardiff CF11 6QU

  21/01793/DCH Submitted 19 Jul 2021 50 yards away

  SINGLE STOREY REAR EXTENSION

  Granted Householder Extension 6 docs
  Small domestic

• 82 Mardy Street Grangetown Cardiff CF11 6QW

  22/02573/HSE Submitted 31 Oct 2022 50 yards away

  Proposed ground floor single storey rear and side extension, and proposed dormer roof extension and porch

  Refused Householder Extension Loft or dormer 15 docs
  Small domestic

• 82 Mardy Street Grangetown Cardiff CF11 6QW

  25/02439/HSE Submitted 21 Oct 2025 50 yards away

  93% historically approved · decision due ~25 Mar

  Proposed ground floor single storey rear and side extension.

  Awaiting decision Householder Extension 14 docs
  Small domestic

• Lyndon Social Club & Institute 109-111 Clare Road Grangetown Cardiff CF11 6QR

  21/00925/MNR Submitted 14 Apr 2021 100 yards away

  SIDE DORMER ROOF EXTENSION AND REAR FLAT ROOF EXTENSION

  Granted Full applications Extension Loft or dormer 20 docs

• 91 Clare Road Grangetown Cardiff CF11 6QQ

  25/01204/FUL Submitted 28 May 2025 100 yards away

  Change of use from C3 to five person HMO (C4).

  Granted Full applications 11 docs

• 39 Dinas Street Grangetown Cardiff CF11 6QZ

  21/01918/DCH Submitted 29 Jul 2021 100 yards away

  REAR DORMER ROOF EXTENSION

  Granted Householder Extension Loft or dormer 13 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