4 Lon-y-deri Caerphilly CF83 1DS

This site has had 2 applications since 2025: 2 approved, 0 refused.

• 25/0846/CLPU Granted

  4 Lon-y-deri Caerphilly CF83 1DS

  Obtain Certificate of Lawful Proposed Development for extension to side and rear of property

  Decided 21 Jan 2026 Lawful development

1. 17 Jun 2026

   Received by Caerphilly

2. 29 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 28 Jul 2026

   Added to PlanIndex

4. 18 Aug 2026

   Decision issued: Granted

Caerphilly granted permission on 18 August 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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 4 Lon-y-deri Caerphilly CF83 1DS

  25/0846/CLPU Submitted 28 Nov 2025 50 yards away

  Obtain Certificate of Lawful Proposed Development for extension to side and rear of property

  Granted Lawful development Extension 7 docs

• 8 Lon-y-waun Caerphilly CF83 1DQ

  26/0532/HH Submitted 10 Aug 2026 150 yards away

  76% historically approved · decision due ~7 Oct

  Remove existing conservatory and erect a single storey rear extension including internal alterations

  Awaiting decision Householder Extension 6 docs
  Small domestic

• Moruzzi Landscapes Limited Nantgarw Road Caerphilly CF83 1BW

  26/0459/FULL Submitted 8 Jul 2026 300 yards away

  Erect security fencing & automated gate to site frontage with Nantgarw Road

  Granted Full applications 9 docs

• 24 Lon Uchaf Caerphilly CF83 1BR

  23/0240/HH Submitted 29 Mar 2023 300 yards away

  Erect front elevation bay window

  Refused Householder Windows or glazing 8 docs
  Domestic

• PHS Group Ltd Block B Western Industrial Estate Caerphilly CF83 1XH

  26/0598/CLPU Submitted 8 Sep 2026 300 yards away

  77% historically approved · decision due ~3 Nov

  Obtain a Lawful Development Certificate for installation of 140 No. roof-mounted photovoltaic solar panels on the east-, south- and west-facing pitched roof slopes of the existing commercial building, providing a total installed generating capacity of approximately 85.4 kWp, together with associated inverter, mounting system and ancillary electrical infrastructure

  Awaiting decision Lawful development 9 docs

• 18 St Julian's Court Caerphilly CF83 1DN

  21/0445/FULL Submitted 23 Apr 2021 350 yards away

  Erect two storey and single storey side extensions

  Granted Full applications Extension 8 docs
  Small domestic

• 26/0548/CLEU Granted

  9 St David's Park New Tredegar NP24 6BJ

  Obtain a Lawful Development Certificate for existing use of the land as garden area associated with No. 9 St Davids Park

  Received 17 Aug, published by the council 24 Aug 2026 Lawful development
• 26/0635/CLEU Awaiting decision

  Ambulance Hall Tredegar Terrace Risca Newport NP11 6BY

  Obtain a Lawful Development Certificate for existing use of the whole premises as a non-residential hall for community, meeting, educational and training purposes, falling within Class D1

  Received 21 Sep, published by the council 24 Sep 2026 Lawful development
• 26/0517/CLPU Refused

  26 Heolddu Crescent Bargoed CF81 8UQ

  Obtain a Lawful Development Certificate for the proposed use of one of the existing ground floor rooms as a small-scale home-based tattoo business

  Received 3 Aug, published by the council 14 Aug 2026 Lawful development
• 26/0611/CLPU Awaiting decision

  24 Heol Cwarrel Clark Caerphilly CF83 2NE

  Obtain a Lawful Development Certificate for conversion of the existing integral garage into habitable accommodation, replacement of the garage door with a window, associated internal alterations and installation of a compact through-floor lift

  Received 11 Sep, published by the council 18 Sep 2026 Lawful development
• 26/0598/CLPU Awaiting decision

  PHS Group Ltd Block B Western Industrial Estate Caerphilly CF83 1XH

  Obtain a Lawful Development Certificate for installation of 140 No. roof-mounted photovoltaic solar panels on the east-, south- and west-facing pitched roof slopes of the existing commercial building, providing a total installed generating capacity of approximately 85.4 kWp, together with associated inverter, mounting system and ancillary electrical infrastructure

  Received 8 Sep, published by the council 12 Sep 2026 Lawful development