37 Llandennis Road Cyncoed Cardiff CF23 6EE

1. 14 Jun 2021

   Received by Cardiff

2. 16 Jun 2021

   Validated

   Checked as complete and ready for consideration.

3. 26 Jul 2021

   Decision issued: Permission Granted

4. 29 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

• 21 Llandennis Road Cyncoed Cardiff CF23 6EE

  22/02708/DOC Submitted 13 Nov 2022 80m away

  Discharge of Conditions 3 (Arboricultual Method Statement and Tree Protection Plan), 4 (Soft Landscaping) and 5 (Construction Environmental Management Plan) of 22/00482/MNR

  Decided Conditions Trees 14 docs

• 21 Llandennis Road Cyncoed Cardiff CF23 6EE

  21/00979/MNR Submitted 20 Apr 2021 81m away

  DEMOLITION OF EXISTING BUNGALOW AND CONSTRUCTION OF NEW DWELLING

  Withdrawn Full applications New dwelling Demolition 19 docs
  Domestic

• 22 Duffryn Close Cyncoed Cardiff CF23 6HT

  21/00807/MNR Submitted 30 Mar 2021 148m away

  NEW FIRST FLOOR BALCONY AND ACCESSED FROM EXISTING STAIR WELL WITH NEWLY CREATED DOORWAY

  Refused Full applications 11 docs

• 38 Lake Road North Cyncoed Cardiff CF23 5QN

  22/02779/HSE Submitted 21 Nov 2022 151m away

  Rear dormer roof extension involving a hip to gable roof extension and single storey rear extension

  Granted Householder Extension Loft or dormer 12 docs
  Small domestic

• 42 Llandennis Road Cyncoed Cardiff CF23 6EG

  22/02862/FUL Submitted 30 Nov 2022 182m away

  Replacement new build dwelling house in place of previously approved remodel and extension, due to requirement for new foundations to existing following site investigation and partial demolition.

  Granted Full applications New dwelling Extension +1 21 docs
  Domestic

• 10 Heath Halt Road Cyncoed Cardiff CF23 5QF

  26/00396/HSE Submitted 25 Feb 2026 194m away

  Demolition of garage/outbuilding and construction of a habitable non self-contained annex.

  Granted Householder Demolition 6 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