123 Treharris Street Roath Cardiff CF24 3HP

1. 21 Jul 2025

   Received by Cardiff

2. 4 Aug 2025

   Decision issued: Permission Granted

3. 6 Aug 2026

   Added to PlanIndex

Cardiff granted permission on 4 August 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 lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 80 Arran Street Roath Cardiff CF24 3HT

  26/00395/HSE Submitted 25 Feb 2026 100 yards away

  Rear conservatory.

  Granted Householder Extension 14 docs
  Small domestic

• 98 Cyfarthfa Street Roath Cardiff CF24 3HG

  21/01238/DCH Submitted 14 May 2021 100 yards away

  SINGLE STOREY REAR SIDE EXTENSION AND REAR DORMER ROOF EXTENSION

  Granted Householder Extension Loft or dormer 10 docs
  Small domestic

• 74 Treharris Street Roath Cardiff CF24 3HL

  24/00533/FUL Submitted 4 Mar 2024 100 yards away

  Retention of change of use from planning use class C3 (dwelling) to C4 (House in Multiple Occupation)

  Granted Full applications 7 docs
  Domestic

• 66 Arran Street Roath Cardiff CF24 3HT

  26/01032/HSE Submitted 19 May 2026 100 yards away

  Replacement of single storey outbuilding and associated works.

  Granted Householder 10 docs
  Small domestic

• 119 Arran Street Roath Cardiff CF24 3HU

  23/00091/FUL Submitted 13 Jan 2023 100 yards away

  Single storey rear extension, conversion of ground floor store, alterations to first floor, roof space with rear dormer and hip to gable extensions and external alterations to form flats

  Granted Full applications New dwelling Extension +1 17 docs
  Small domestic

• 35 Upper Kincraig Street Roath Cardiff CF24 3HA

  25/02196/CLPUD Submitted 24 Sep 2025 100 yards away

  Rear dormer roof extension.

  Granted Lawful development Extension Loft or dormer 5 docs

• 26/01578/CLPUD Granted

  207 Fidlas Road Llanishen Cardiff CF14 5NA

  Proposed ancillary garden building

  Received 28 Jul, published by the council 6 Oct 2026 Lawful development
• 26/02084/CLPUD Awaiting decision

  24 Bassetts Field Rhiwbina Cardiff CF14 9UG

  Proposed single storey flat roof extension to rear

  Received 2 Oct, published by the council 6 Oct 2026 Lawful development
• 26/02050/CLPUD Awaiting decision

  First And Second Floor 85 Romilly Crescent Pontcanna Cardiff CF11 9NQ

  Change of use from Residential to C6 short-term let.

  Received 25 Sep, published by the council 6 Oct 2026 Lawful development
• 26/02053/CLPUD Awaiting decision

  32 Homelands Road Heath Cardiff CF14 1UJ

  Single storey rear extension.

  Received 24 Sep, published by the council 6 Oct 2026 Lawful development
• 26/01863/CLPUD Granted

  6 Llandennis Green Cyncoed Cardiff CF23 6JX

  Proposed conversion of existing integral garage to ancillary domestic accommodation, including minor internal alterations

  Received 4 Sep, published by the council 22 Sep 2026 Lawful development