18 Redbrook Avenue Trethomas Caerphilly CF83 8DB

1. 30 Jul 2026

   Received by Caerphilly

2. 7 Aug 2026

   Added to PlanIndex

3. 23 Sep 2026

   Decision issued: Granted

Caerphilly granted permission on 23 September 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.

• 1 Lower Glyn-Gwyn Street Trethomas Caerphilly CF83 8GA

  23/0179/HH Submitted 7 Mar 2023 100 yards away

  Erect single storey rear extension

  Granted Householder Extension 11 docs
  Small domestic

• Ty Coch Newport Road Trethomas Caerphilly CF83 8GB

  25/0530/HH Submitted 30 Jul 2025 150 yards away

  Erect single storey garden room to the rear of the dwelling

  Granted Householder 13 docs
  Small domestic

• Nantgoch Newport Road Trethomas Caerphilly CF83 8GB

  24/0650/FULL Submitted 6 Sep 2024 200 yards away

  Demolish existing log cabin and replace with new building containing 2 x self-contained supported living units along with associated external works, the new building will serve as an Annex to the main building

  Refused Full applications Demolition 16 docs

• 12 Navigation Street Trethomas Caerphilly CF83 8DJ

  19/0916/RET Submitted 11 Nov 2019 300 yards away

  Retain detached outbuilding and rear timber fence

  Granted 7 docs
  Small domestic

• Land At Grid Ref 318341 189126 William Street Trethomas Caerphilly

  26/0201/RM Submitted 20 Mar 2026 300 yards away

  Seek approval of the reserved matters in respect of access, appearance, landscaping and layout of planning consent 25/0061/OUT (Erect up to 8 residential units and associated highway, drainage and landscape infrastructure)

  Granted Reserved matters 39 docs

• 3 Chapel Court Navigation Street Trethomas Caerphilly CF83 8FR

  24/0816/HH Submitted 8 Nov 2024 350 yards away

  Erect second storey side extension

  Granted Householder Extension 7 docs
  Domestic

• 26/0528/HH Granted

  Bryncanol Ty Canol Lane Machen Caerphilly CF83 8QE

  Demolish existing lean-to rear extension, raise ridge height, erect first-floor front extension, convert loft to include two dormers to the front and two dormers to the rear and associated landscaping works, including extending the existing terrace to the front

  Received 5 Aug, published by the council 14 Aug 2026 Householder
• 26/0649/HH Awaiting decision

  Graig View Cottage The Row To Gwern-y-goytre Draethen Newport NP10 8GF

  Erect a raised decking area

  Received 28 Sep, published by the council 5 Oct 2026 Householder
• 26/0383/HH Refused

  Woodland Cottage Cwmnofydd Farm Lane Machen Caerphilly CF83 8NR

  Erect two storey rear extension

  Received 2 Jun, published by the council 28 Jul 2026 Householder
• 26/0503/HH Granted

  13 Ebbw Meadow Abercarn Newport NP11 5GL

  Erect a double storey rear extension with a single storey side extension

  Received 28 Jul, published by the council 7 Aug 2026 Householder
• 26/0446/HH Granted

  Primrose Cottage Yew Tree Cottage To The Row Draethen Newport NP10 8GB

  Demolish existing conservatory and erect oak extension/conservatory (fully glazed with tiled roof)

  Received 7 Jul, published by the council 28 Jul 2026 Householder