12 Seymour Street Splott Cardiff CF24 2NQ

1. 31 Aug 2026

   Received by Cardiff

2. 4 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 13 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 30 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Cardiff took a median of 56 days over the applications it decided in the last year.

This application is with Cardiff for determination, against a statutory target of eight weeks. Over the last year Cardiff decided full applications in a median of 85 days. More in our guide to how long planning decisions take.

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.

• 108B Railway Street Splott Cardiff CF24 2NF

  24/00894/FUL Submitted 17 Apr 2024 100 yards away

  The conversion of existing dilapidated garage into a habitable space designed for one bedroom, en suite and additional kitchen/dining space. External alterations to the property.

  Granted Full applications 16 docs

• 106 Railway Street Splott Cardiff CF24 2NF

  22/02527/HSE Submitted 25 Oct 2022 100 yards away

  Single storey rear extension and associated alterations

  Granted Householder Extension 15 docs
  Small domestic

• 7 Eyre Street Splott Cardiff CF24 2JR

  20/01744/DCH Submitted 3 Sep 2020 100 yards away

  SINGLE STOREY REAR EXTENSION

  Granted Householder Extension 5 docs
  Small domestic

• 23 Eyre Street Splott Cardiff CF24 2JS

  21/01292/MNR Submitted 20 May 2021 150 yards away

  CHANGE OF USE FROM A 3 BED HOUSE, INTO 3 X 1 BED FLATS. INCLUDING A SINGLE STORY REAR EXTENSION, AND REAR DORMER/LOFT CONVERSION

  Granted Full applications New dwelling Extension +1 6 docs

• 87 Pearl Street Adamsdown Cardiff CF24 1PL

  26/02064/FUL Submitted 29 Sep 2026 200 yards away

  90% historically approved · decision due ~24 Nov

  Change of use of the existing ground-floor takeaway to a self-contained two-bedroom flat, with retention of the existing first-floor flat and associated external alterations

  Awaiting decision Full applications 5 docs

• Land Adjacent To 82 Diamond Street Adamsdown Cardiff CF24 1NR

  23/02420/FUL Submitted 17 Oct 2023 250 yards away

  To Construct a new lock up storage units (retaining existing car park space) to land adjacent to 82 Diamond Street Adamsdown Cardiff

  Refused Full applications 4 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