26/00102/CLPUD

1. 20 Jan 2026

   Received by Cardiff

2. 6 Feb 2026

   Decision issued: Permission Granted

3. 22 Jul 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within five years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 25/01979/FUL Awaiting decision

  55 Coburn Street Cathays Cardiff CF24 4BR

  Change of use from Class C4 House in Multiple Occupation to large Sui Generis HMO with ground floor rear extension and rear dormer extension.

  26 Aug 2025 31m away Full applications
• 26/01393/FUL Awaiting decision

  138 Rhymney Street Cathays Cardiff CF24 4DJ

  Change of use from C3 Dwellinghouse to C4 House in Multiple Occupation (5 Bedrooms) and construction of rear dormer.

  6 Jul 2026 51m away Full applications
• 26/01391/CLEUD Awaiting decision

  173 Rhymney Street Cathays Cardiff CF24 4DL

  Use of the property as a Sui Generis House in Multiple Occupation (HMO).

  6 Jul 2026 94m away Lawful development
• 26/01126/FUL Awaiting decision

  Flat 4 And 5 44 Harriet Street Cathays Cardiff CF24 4BY

  Change of use from 2 no. 2-bedroom self-contained flats (Use class C3) to 2 no. 3-bedroom Houses in Multiple Occupation (Use Class C4).

  2 Jun 2026 97m away Full applications
• 25/02530/FUL Awaiting decision

  53 Harriet Street Cathays Cardiff CF24 4BW

  Ground and first floor rear extensions, rear dormer roof extension, ground level changes and change of use to class C4 House in Multiple Occupation.

  3 Nov 2025 127m away Full applications
• 25/02227/FUL Granted

  161 Richmond Road Roath Cardiff CF24 3BT

  Two storey rear extension, side dormer roof extensions and alterations to existing four flats.

  26 Sep 2025 135m away Full applications

• 26/01314/CLPUD Granted

  Beech House Pascal Close Trowbridge Cardiff

  Remove air handling unit and chiller systems. The plinth to be removed and a replacement plinth being installed on the same footprint. Installation of a new liquid nitrogen tank.

  23 Jun 2026 Lawful development
• 26/01449/CLPUD Awaiting decision

  53 Westbourne Road Whitchurch Cardiff CF14 2BR

  single storey flat roof side and rear extension

  13 Jul 2026 Lawful development
• 26/01429/CLPUD Awaiting decision

  311 Western Avenue Llandaff Cardiff CF5 2BA

  Works associated with a loft conversion

  10 Jul 2026 Lawful development
• 26/01415/CLPUD Awaiting decision

  85 Wenallt Road Rhiwbina Cardiff CF14 6TP

  Construction of rear roof dormer and installation of roof windows.

  9 Jul 2026 Lawful development
• 26/01391/CLEUD Awaiting decision

  173 Rhymney Street Cathays Cardiff CF24 4DL

  Use of the property as a Sui Generis House in Multiple Occupation (HMO).

  6 Jul 2026 Lawful development