Hillside Radyr Court Road Llandaff Cardiff CF5 2QF

1. 20 May 2024

   Received by Cardiff

2. 18 Nov 2024

   Decision issued: Refuse

3. 4 Sep 2026

   Added to PlanIndex

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

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

• 17 Gerddi Taf Llandaff Cardiff CF5 2SQ

  25/02984/CLPUD Submitted 23 Dec 2025 139m away

  Single storey rear extension.

  Granted Lawful development Extension 11 docs
  Small domestic

• 43 Blethin Close Llandaff Cardiff CF5 2RR

  26/01512/CLPUD Submitted 21 Jul 2026 153m away

  Single storey rear and side extension.

  Granted Lawful development Extension 8 docs
  Small domestic

• 67 Nicholson Webb Close Llandaff Cardiff CF5 2RL

  26/00460/HSE Submitted 9 Mar 2026 187m away

  Part single storey, part two storey side extension with associated works.

  Granted Householder Extension 13 docs
  Small domestic

• 67 Nicholson Webb Close Llandaff Cardiff CF5 2RL

  26/01610/HSE Submitted 30 Jul 2026 187m away

  92% historically approved · decision due ~24 Sep

  Proposed double storey side extension and single storey front porch

  Awaiting decision Householder Extension 6 docs
  Small domestic

• 26 Allan Durst Close Llandaff Cardiff CF5 2RP

  26/01270/CLPUD Submitted 19 Jun 2026 280m away

  Construction of single storey side extension

  Granted Lawful development Extension 8 docs
  Small domestic

• 28 Richard Lewis Close Llandaff Cardiff CF5 2TB

  25/01764/CLPUD Submitted 29 Jul 2025 299m away

  Proposed single storey rear extension and associated works.

  Granted Lawful development Extension 8 docs
  Small domestic

• 26/01705/CLPUD Granted

  390 Cyncoed Road Cyncoed Cardiff CF23 6SA

  Use of 390 Cyncoed Road as residential accommodation for up to six adults with mental health conditions, living together as a single household, with care and support provided by non-resident staff

  11 Aug 2026 Lawful development
• 26/01807/CLPUD Awaiting decision

  33 Blossom Drive Lisvane Cardiff CF14 0BE

  Proposed single storey rear extension and conversion of integral garage

  25 Aug 2026 Lawful development
• 26/01476/CLPUD Granted

  71 Llandennis Avenue Cyncoed Cardiff CF23 6JF

  Single storey extension to side and rear.

  16 Jul 2026 Lawful development
• 26/01662/CLEUD Granted

  2 Llantwit Street Cathays Cardiff CF24 4AJ

  Use of the property as four self-contained flats.

  5 Aug 2026 Lawful development
• 26/01775/CLEUD Awaiting decision

  62 Cottrell Road Roath Cardiff CF24 3EZ

  Use of the property as 2 residential care flats (Class C2).

  20 Aug 2026 Lawful development