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Planning application

26/00488/HSE

23 Llandennis Avenue Cyncoed Cardiff CF23 6JE

Granted Cardiff Householder Planning Permission

Proposal

Single storey side garage. Two storey front and rear extensions. Single storey rear extension and loft conversion with two dormers.

As published by the council, reference 26/00488/HSE

Timeline

Dates from the published record

  1. 11 Mar 2026

    Received by Cardiff

  2. 1 May 2026

    Decision issued: Permission Granted

  3. 22 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

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.

About householder applications

How this application type works

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

Nearby applications

Within 500 metres

  • 26/01345/HSE Awaiting decision

    42 Pennant Crescent Cyncoed Cardiff CF23 6LN

    Erection of a double storey rear extension with a conversion to existing garage and porch addition.

    29 Jun 2026 44m away Householder
  • 25/02336/WTTPP Granted

    29 Rannoch Drive Cyncoed Cardiff CF23 6LP

    TPO 551/T09 - T1 - English Oak - 2 Meter Reduction.

    9 Oct 2025 184m away Trees
  • 25/01963/HSE Awaiting decision

    49 Rannoch Drive Cyncoed Cardiff CF23 6LP

    Two storey rear extension, front porch extension, first floor front infill and associated external alterations.

    22 Aug 2025 193m away Householder
  • 26/01184/NMA Granted

    49 Rannoch Drive Cyncoed Cardiff CF23 6LP

    Non-Material Amendment to Planning Permission 25/01963/HSE- Raise the main apex roof front to back and remove front dormer roof.

    9 Jun 2026 224m away Amendments
  • 25/02840/HSE Granted

    14 Nant-fawr Crescent Cyncoed Cardiff CF23 6JN

    Rear dormer roof extension.

    1 Dec 2025 242m away Householder
  • 25/01777/NMA Awaiting decision

    32 Rannoch Drive Cyncoed Cardiff CF23 6LQ

    Proposed Non-Material Amendment to Planning Permission 24/02548/HSE - Increase the width of the porch and change of colour to new ground floor brickwork.

    30 Jul 2025 260m away Amendments

In Cardiff

  • 26/00074/HSE Granted

    201 Pantbach Road Rhiwbina Cardiff CF14 6AE

    Side dormer roof extensions. Two storey gabled rear extension with first floor Juliette balcony and external alterations to the property.

    15 Jan 2026 Householder
  • 26/01047/HSE Granted

    39 James Court Trowbridge Cardiff CF3 0FA

    Single storey rear extension.

    21 May 2026 Householder
  • 26/01054/HSE Granted

    38 Heol Iscoed Rhiwbina Cardiff CF14 6PB

    First floor rear extension, single storey side extension, demolition of existing garage.

    21 May 2026 Householder
  • 26/01058/HSE Granted

    37 Ridgeway Lisvane Cardiff CF14 0RS

    Demolition of existing garage, and erection of a single storey rear/side extension.

    22 May 2026 Householder
  • 26/01044/HSE Granted

    102 Wenallt Road Rhiwbina Cardiff CF14 6TP

    Single storey rear extension.

    20 May 2026 Householder