18 St Isan Road Heath Cardiff CF14 4LX

1. 29 Sep 2026

   Received by Cardiff

2. 6 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 24 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Cardiff took a median of 56 days over the applications it decided in the last year.

This application is with Cardiff for determination, against a statutory target of eight weeks. Over the last year Cardiff decided householder applications in a median of 59 days. More in our guide to how long planning decisions take.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 70 St Ina Road Heath Cardiff CF14 4LT

  21/01574/DCH Submitted 22 Jun 2021 50 yards away

  GROUND FLOOR SIDE AND REAR EXTENSION AND DEMOLITION OF EXISTING GARAGE AND CONSTRUCTION OF EXTERNAL UTILITY AREA

  Granted Householder Extension Demolition 5 docs
  Domestic

• 11 St Isan Road Heath Cardiff CF14 4LU

  23/02954/HSE Submitted 19 Dec 2023 50 yards away

  Proposed single storey rear extension

  Granted Householder Extension 17 docs
  Small domestic

• 34 St Isan Road Heath Cardiff CF14 4LX

  22/01159/DCH Submitted 30 May 2022 100 yards away

  HIP TO GABLE EXTENSION AND REAR ELEVATION DORMER WINDOW

  Granted Lawful development Extension Loft or dormer +1 12 docs

• 75 St Ina Road Heath Cardiff CF14 4LT

  25/02082/REN Submitted 11 Sep 2025 100 yards away

  Renewal of 20/01888/DCH for ground and first floor side and rear extensions and alterations.

  Granted Amendments Extension 4 docs

• 67 St Ina Road Heath Cardiff CF14 4LT

  26/02028/HSE Submitted 21 Sep 2026 100 yards away

  93% historically approved · decision due ~25 Nov

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

  Awaiting decision Householder Extension Demolition 5 docs
  Small domestic

• 25 Maes-y-coed Road Heath Cardiff CF14 4HA

  26/01040/HSE Submitted 20 May 2026 100 yards away

  Two storey rear extension- revision to previously approved application 24/00738/HSE

  Granted Householder Extension 11 docs
  Domestic

• 26/02112/HSE Awaiting decision

  7 Penydarren Drive Whitchurch Cardiff CF14 2TT

  Proposed Single Storey Side/Rear Extension with Garage Conversion

  Received 7 Oct, published by the council 9 Oct 2026 Householder
• 26/02113/HSE Awaiting decision

  78 Mill Road Lisvane Cardiff CF14 0UG

  PROPOSED FIRST FLOOR EXTENSION AT SIDE OF HOUSE

  Received 7 Oct, published by the council 9 Oct 2026 Householder
• 26/01702/HSE Granted

  45 Gwern Rhuddi Road Cyncoed Cardiff CF23 6PS

  Two storey and single storey rear extensions (development similar to that as approved under 25/00533/HSE with additional first floor part).

  Received 10 Aug, published by the council 24 Aug 2026 Householder
• 26/02104/HSE Awaiting decision

  15 Brynteg Rhiwbina Cardiff CF14 6TS

  Proposed single storey rear extension to the existing semi-detached dwelling including minor internal and external modifications

  Received 6 Oct, published by the council 9 Oct 2026 Householder
• 26/02102/HSE Awaiting decision

  49 Kimberley Road Penylan Cardiff CF23 5DL

  Proposed ground floor rear side return extension

  Received 6 Oct, published by the council 9 Oct 2026 Householder