17 Cae Syr Dafydd Canton Cardiff CF11 9QG

1. 14 Jul 2025

   Received by Cardiff

2. 1 Sep 2025

   Decision issued: Permission Granted

3. 13 Aug 2026

   Added to PlanIndex

Cardiff granted permission on 1 September 2025, 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.

• 25 Cae Syr Dafydd Canton Cardiff CF11 9QG

  26/00013/HSE Submitted 5 Jan 2026 50 yards away

  Removal of existing conservatory, single storey rear extension, first floor rear and side extension, and front porch extension.

  Granted Householder Extension 6 docs
  Small domestic

• 1 Penhill Court 250 Llandaff Road Canton Cardiff CF11 9PX

  22/02036/HSE Submitted 26 Aug 2022 100 yards away

  First floor extension over existing garage

  Refused Householder Extension 8 docs
  Domestic

• 1 Penhill Court 250 Llandaff Road Canton Cardiff CF11 9PX

  23/00824/HSE Submitted 12 Apr 2023 100 yards away

  First floor extension on top of existing garage

  Granted Householder Extension 8 docs
  Domestic

• Penhill House Llandaff Road Canton Cardiff CF11 9PX

  26/02004/WTTPF Submitted 16 Sep 2026 100 yards away

  100% historically approved · decision due ~11 Nov

  Complete removal of 11 TPO trees from G24 of TPO Ref No 10: 10 x Thuja (T39 -T48) and 1 x ash (T36). Thuja T33 - Crown reduce in height by 3-5m and away from property to give 2m clearance Thuja T35 - Crown reduce in height by 3-5m and ensure 2m clearance from building Tree numbers in line with accompanying plan, contained within accompanying structural engineering report.

  Awaiting decision Trees 3 docs

• 18 Greenfield Avenue Canton Cardiff CF11 9PT

  22/02697/HSE Submitted 10 Nov 2022 100 yards away

  Ground floor side/rear extension

  Granted Householder Extension 7 docs
  Domestic

• 138A Llandaff Road Riverside Cardiff CF11 9PW

  26/01960/FUL Submitted 11 Sep 2026 100 yards away

  90% historically approved · decision due ~18 Nov

  Rear/side dormer loft conversion and rear balcony.

  Awaiting decision Full applications Loft or dormer 6 docs

• 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