26/0309/HH

1. 28 Apr 2026

   Received by Caerphilly

2. 22 Jun 2026

   Decision issued: Granted

3. 28 Jul 2026

   Added to PlanIndex

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.

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

• 26/0212/HH Refused

  10 Ashgrove Trethomas Caerphilly CF83 8BP

  Erect two storey rear extension

  24 Mar 2026 0m away Householder
• 26/0465/FULL Awaiting decision

  Trethomas Life Centre Heol-yr-ysgol Trethomas Caerphilly CF83 8FL

  Erect single storey Annex for charitable use including small group sessions, cooking and washing/showering facilities

  13 Jul 2026 83m away Full applications
• 25/0622/COND Decided

  White O'Morn Navigation Street Trethomas Caerphilly CF83 8DJ

  Discharge conditions 03 (Sound Insulation) and 08 (Bio Enhancement) of planning consent 25/0001/COU (Change the use of single dwelling to 9-bed HMO)

  8 Sep 2025 96m away Conditions
• 25/0682/COND Decided

  22 The Avenue Trethomas Caerphilly CF83 8BW

  Discharge condition 05 (Contamination - Validation) of planning consent 23/0863/FULL (Erect a single storey 2 bedroom dwelling and associated external works)

  2 Oct 2025 243m away Conditions
• 25/0675/COND Decided

  22 The Avenue Trethomas Caerphilly CF83 8BW

  Discharge condition 06 (Contamination - validation) of planning consent 23/0092/COU (Change the use from D1 to C3 and erect two front extensions to achieve 2 No. bungalows)

  2 Oct 2025 244m away Conditions
• 25/0692/RET Granted

  69 & 71 Bryn-y-fran Avenue Trethomas Caerphilly CF83 8GS

  Retain the existing single storey rear extension across both properties. Erect a front porch and a Juliette balcony on each property. At No.69, erect a first floor rear extension and alter the roof from hip to gable

  13 Oct 2025 254m away

• 26/0330/HH Granted

  1 Cae Gorlan Street Abercarn Newport NP11 4TA

  Erect first floor extension and ground floor rear extension

  30 Apr 2026 Householder
• 26/0379/HH Granted

  9 Pencoed Avenue Cefn Fforest Blackwood NP12 3LD

  Erect a single storey flat roof rear extension

  1 Jun 2026 Householder
• 26/0378/HH Granted

  12 Glyn Derwen Llanbradach Caerphilly CF83 3PQ

  Erect rear extension to first floor and extend front first floor dormer to bedroom

  29 May 2026 Householder
• 26/0354/HH Granted

  17 Coronation Crescent Pantside Newport NP11 5DJ

  Extend existing driveway and build new pathway to bungalow, build new walls, take down existing wall and put in eco drains

  21 May 2026 Householder
• 26/0368/HH Refused

  15 Rowan Close Nelson Treharris CF46 6EN

  Erect two storey rear extension and side garage extension

  20 May 2026 Householder