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Planning application

26/00132/HSE

18 Castlefield Place Mynachdy Cardiff CF14 3DU

Granted Cardiff Householder Planning Permission

Proposal

First floor rear extension.

As published by the council, reference 26/00132/HSE

Timeline

Dates from the published record

  1. 22 Jan 2026

    Received by Cardiff

  2. 11 Feb 2026

    Validated

    Checked as complete and ready for consideration.

  3. 24 Apr 2026

    Decision issued: Permission Granted

  4. 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

  • 26/00792/FUL Refused

    161 North Road Mynachdy Cardiff CF14 3AG

    Conversion of property into four self-contained flats with single storey side extension, single and two storey rear extensions and rear dormer.

    21 Apr 2026 198m away Full applications
  • 26/01410/HSE Awaiting decision

    85 Newfoundland Road Gabalfa Cardiff CF14 3LB

    Installation of a Air Source Heat Pump.

    7 Jul 2026 208m away Householder
  • 26/01389/HSE Awaiting decision

    44 Heathfield Road Gabalfa Cardiff CF14 3JY

    Single storey rear extension and provision of parking space to the rear garden.

    22 Jun 2026 281m away Householder
  • 25/01998/FUL Awaiting decision

    Rear Of 1 Heathfield Road Gabalfa Cardiff CF14 3JX

    Partial demolition and rebuild of existing building with first floor extension and change of use to 2 no. 2-bedroom flats.

    27 Aug 2025 298m away Full applications
  • 25/01997/FUL Awaiting decision

    Rear Of 1 Heathfield Road Gabalfa Cardiff CF14 3JX

    Partial demolition and rebuild of existing building with first floor extension and change of use to a 5-bed HMO (C4 Use).

    27 Aug 2025 298m away Full applications
  • 26/01252/FUL Awaiting decision

    276 North Road Gabalfa Cardiff CF14 3BL

    CONVERSION FROM TWO TO THREE FLATS OVER THE EXISTING OFFICE WITH REAR DORMER LOFT CONVERSION

    17 Jun 2026 302m away Full applications

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