12 Birchwood Road Penylan Cardiff CF23 5LJ

This site has had 2 applications since 2026: 1 approved, 0 refused.

• 26/00161/HSE Granted

  12 Birchwood Road Penylan Cardiff CF23 5LJ

  Rear dormer roof extension.

  Decided 30 Mar 2026 Householder

1. 10 Aug 2026

   Received by Cardiff

2. 12 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 17 Aug 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 7 October 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.

• 12 Birchwood Road Penylan Cardiff CF23 5LJ

  26/00161/HSE Submitted 27 Jan 2026 50 yards away

  Rear dormer roof extension.

  Granted Householder Extension Loft or dormer 12 docs
  Domestic

• University Hall Birchwood Lane, Penylan Cardiff CF23 5LH

  26/01966/WTTPFP Submitted 16 Sep 2026 150 yards away

  Carry out a crown raise and crown reduction to one mature Common T1 Walnut tree. Needs lifting to 3mtrs and a full crown reduction all over by 2mtrs

  Granted Trees 5 docs

• 15 Egremont Road Penylan Cardiff CF23 5LP

  24/02436/HSE Submitted 14 Oct 2024 150 yards away

  Single storey rear and side extension, front porch extension, loft conversion with rear dormer and external alterations.

  Granted Householder Extension Loft or dormer 13 docs
  Small domestic

• 23 Egremont Road Penylan Cardiff CF23 5LP

  21/00005/DCH Submitted 4 Jan 2021 150 yards away

  TWO STOREY SIDE AND REAR EXTENSION AND SINGLE STOREY SIDE EXTENSION

  Granted Householder Extension 8 docs
  Small domestic

• 29 Egremont Road Penylan Cardiff CF23 5LP

  21/01050/DCH Submitted 26 Apr 2021 150 yards away

  CONSTRUCTION OF PART SINGLE AND PART TWO STOREY REAR EXTENSION, FRONT PORCH EXTENSION AND DETACHED REAR GARDEN OFFICE

  Granted Householder Extension 12 docs
  Small domestic

• 10 Wasdale Close Penylan Cardiff CF23 5NY

  21/01112/DCH Submitted 4 May 2021 150 yards away

  FIRST FLOOR EXTENSION OVER GARAGE

  Granted Householder Extension 14 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