20 Sherborne Avenue Cyncoed Cardiff CF23 6SJ

1. 4 Mar 2026

   Received by Cardiff

2. 29 Apr 2026

   Decision issued: Permission Granted

3. 22 Jul 2026

   Added to PlanIndex

Cardiff granted permission on 29 April 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.

• 16 Sherborne Avenue Cyncoed Cardiff CF23 6SJ

  21/01139/DCH Submitted 5 May 2021 50 yards away

  CONSTRUCTION OF A SUN ROOM

  Granted Lawful development 7 docs

• Woodlands 28 Westminster Crescent Cyncoed Cardiff CF23 6SE

  21/00523/DCH Submitted 2 Mar 2021 100 yards away

  DEMOLITION OF EXISTING DETACHED GARAGE AND CONSTRUCTION OF A PART SINGLE / PART TWO STOREY SIDE AND REAR EXTENSION AND FIRST FLOOR FRONT EXTENSION

  Granted Householder Extension Demolition 15 docs
  Domestic

• Woodlands 28 Westminster Crescent Cyncoed Cardiff CF23 6SE

  22/02839/HSE Submitted 28 Nov 2022 100 yards away

  Single storey extension to front and rear elevations and two storey extension to rear and side elevations

  Granted Householder Extension 12 docs
  Small domestic

• 15 Celyn Grove Cyncoed Cardiff CF23 6SH

  26/01192/HSE Submitted 9 Jun 2026 100 yards away

  Single storey side extension.

  Granted Householder Extension 10 docs
  Small domestic

• 17 Woodvale Avenue Cyncoed Cardiff CF23 6SP

  21/00835/DCH Submitted 6 Apr 2021 150 yards away

  REAR DORMER ROOF EXTENSION INCLUDING RAISING OF RIDGE

  Granted Householder Extension Loft or dormer 6 docs
  Domestic

• 5 Celyn Grove Cyncoed Cardiff CF23 6SH

  26/02100/HSE Submitted 5 Oct 2026 150 yards away

  93% historically approved · decision due ~30 Nov

  Proposed first floor extension to the rear, including minor internal modifications

  Awaiting decision Householder Extension 8 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