25 Ty Glas Avenue Llanishen Cardiff CF14 5DX

1. 4 Jun 2026

   Received by Cardiff

2. 22 Jul 2026

   Added to PlanIndex

3. 28 Jul 2026

   Decision issued: Permission Granted

Cardiff granted permission on 28 July 2026, subject to any conditions on the decision notice. Work must normally begin within five years or the permission lapses. More in our guide to what happens after a planning decision.

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.

• 19 Ty Glas Avenue Llanishen Cardiff CF14 5DX

  21/00949/MNR Submitted 16 Apr 2021 50 yards away

  CHANGE OF USE FROM C3 (DWELLINGHOUSE) TO C2 (RESIDENTIAL INSTITUTION - TO PROVIDE SUPPORTED ACCOMMODATION FOR CHILDREN UNDER 16). ALTERATIONS TO FRONT ELEVATION, PORCH AND CONVERSION OF GARAGE TO LIVING ACCOMMODATION WITH INFILL EXTENSION TO CONNECT TO MAIN HOUSE

  Granted Full applications Extension 17 docs
  Small domestic

• 175 Fidlas Road Llanishen Cardiff CF14 5LZ

  20/01742/DCH Submitted 2 Sep 2020 150 yards away

  TWO STOREY SIDE/REAR EXTENSION WITH PART SINGLE STOREY REAR EXTENSION

  Granted Householder Extension 9 docs
  Small domestic

• 174 Fidlas Road Llanishen Cardiff CF14 5LZ

  26/00884/CLEUD Submitted 5 May 2026 200 yards away

  Conversion of garage to liveable space.

  Granted Lawful development 7 docs

• PART OF LAND AT 8 WYNDHAM TERRACE, LLANISHEN, CARDIFF, CF14 5NL

  03/00594/N Submitted 19 Mar 2003 200 yards away

  FOR ERECTION OF TWO STOREY DWELLING

  Granted Outline
  Domestic

• Rhydes Court 199 - 201 Fidlas Road Llanishen Cardiff

  26/00287/WTTPFP Submitted 11 Feb 2026 200 yards away

  Grounds of Rhydes Court 199-201 Fidlas Road, works to trees as per James Pinder Treecare Consulting report. All works exempt bar: - T3, Oak - Remove epicormic shoots up to 6m. Prune out dead, rubbing and excessive damage branches. Re reduce crown by 2-3m ASLB using NTP. T4, Oak - Sympathetically remove impact damaged branches over access, reduce foliage back from building by up to 1.5m ASLB using NTP. Leave a neat and balanced crown following pruning.

  Granted Trees 5 docs

• 164 Fidlas Road Llanishen Cardiff CF14 5LZ

  21/00765/DCH Submitted 25 Mar 2021 200 yards away

  SINGLE AND TWO STOREY SIDE EXTENSION

  Granted Householder Extension 12 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