11 Coburn Street Cathays Cardiff CF24 4BQ

1. 13 Feb 2026

   Received by Cardiff

2. 27 Feb 2026

   Decision issued: Permission Granted

3. 22 Jul 2026

   Added to PlanIndex

Cardiff granted permission on 27 February 2026, 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.

• 28 Coburn Street Cathays Cardiff CF24 4BS

  21/01175/DCH Submitted 10 May 2021 50 yards away

  SMALL INCREASE TO WIDTH TO EXISTING 2 STOREY REAR PROJECTION, 2 VELUX ROOFLIGHTS, WIDEN EXISTING REAR PATIO DOOR AND REMOVAL OF EXISTING CHIMNEY

  Granted Householder Loft or dormer 9 docs
  Domestic

• 48 Coburn Street Cathays Cardiff CF24 4BS

  21/01308/MNR Submitted 21 May 2021 50 yards away

  CHANGE OF USE FROM C3 RESIDENTIAL DWELLING TO SEVEN PERSON HMO (SUI GENERIS) WITH A SINGLE STOREY REAR EXTENSION, REAR DORMER ROOF EXTENSION AND ASSOCIATED WORKS

  Granted Full applications Extension Loft or dormer 11 docs
  Small domestic

• 81 Rhymney Street Cathays Cardiff CF24 4DH

  23/00354/CLU Submitted 15 Feb 2023 50 yards away

  Existing Use as a 6 bed House in Multiple Occupation (HMO)

  Granted Lawful development 8 docs

• 57 Rhymney Street Cathays Cardiff CF24 4DH

  26/00959/FUL Submitted 12 May 2026 50 yards away

  Change of use to class C4 House in Multiple Occupation (HMO) with rear extensions and dormer loft conversion.

  Withdrawn Full applications Extension Loft or dormer 7 docs

• 55 Rhymney Street Cathays Cardiff CF24 4DH

  26/00836/FUL Submitted 28 Apr 2026 50 yards away

  Change of Use to Class C4 House in Multiple Occupation with rear and side extensions and a rear dormer roof extension.

  Granted Full applications Extension Loft or dormer 8 docs

• 51 Rhymney Street Cathays Cardiff CF24 4DH

  25/01660/FUL Submitted 16 Jul 2025 100 yards away

  Ground floor rear extension plus rear dormer loft extension and conversion to class C4 House in Multiple Occupation.

  Granted Full applications Extension Loft or dormer 9 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