8 Brynderwen Close Cyncoed Cardiff CF23 6BR

1. 29 Aug 2024

   Received by Cardiff

2. 5 Sep 2024

   Validated

   Checked as complete and ready for consideration.

3. 17 Sep 2024

   Decision issued: Permission Granted

4. 6 Aug 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

• 9 Caer Cady Close Cyncoed Cardiff CF23 6BS

  24/01584/HSE Submitted 8 Jul 2024 54m away

  Garage conversion with first floor side extension. Part single storey, part two storey rear extension. Ridge raise, External alterations to the property and new rear terrace/steps.

  Granted Householder Extension 8 docs
  Small domestic

• 6 Caer Cady Close Cyncoed Cardiff CF23 6BS

  21/01014/DCH Submitted 21 Apr 2021 110m away

  SINGLE STOREY REAR EXTENSION

  Granted Householder Extension 8 docs
  Small domestic

• 190 Cyncoed Road Cyncoed Cardiff CF23 6BQ

  25/01995/HSE Submitted 27 Aug 2025 147m away

  92% historically approved · decision due ~22 Oct

  Hip to gable and rear dormer roof extension

  Awaiting decision Householder Extension Loft or dormer 8 docs
  Domestic

• 1 Holmwood Close Cyncoed Cardiff CF23 6BT

  26/00691/HSE Submitted 2 Apr 2026 153m away

  Single storey rear extension.

  Granted Householder Extension 12 docs
  Small domestic

• Cardiff Metropolitan University Cyncoed Campus Cyncoed Road Cyncoed Cardiff CF23 6XD

  26/00839/VAR Submitted 28 Apr 2026 161m away

  Erection of single storey strength and conditioning facility with associated plant. (Approved 26 June 2023 - 23/00803/FUL):- Variation of Condition 2 (Temporary Structure Time Period) of 23/00803/FUL (as amended by 23/02288/NMA) to amend the approved scheme as follows: 1) Allow the continued use of the temporary structure for a further five years.

  Granted Amendments 7 docs
  Small domestic

• 198 Cyncoed Road Cyncoed Cardiff CF23 6BQ

  26/00043/HSE Submitted 12 Jan 2026 192m away

  Retention of conversion and extensions of garage to create granny style annex.

  Granted Householder Extension 6 docs
  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