Skip to content
PlanIndex Get alerts
Menu

Planning application

26/0470/HH

21 Heol Isaf Nelson Treharris CF46 6NS

Awaiting decision Caerphilly Householder Application

Proposal

Demolish existing rear conservatory and detached garage and construct new single storey rear extension

As published by the council, reference 26/0470/HH

Timeline

Dates from the published record

  1. 10 Jul 2026

    Received by Caerphilly

  2. 14 Jul 2026

    Validated

    Checked as complete and ready for consideration.

  3. 28 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

What happens while it is decided

The process from here

This application is with Caerphilly for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

About householder applications

How this application type works

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

Nearby applications

Within 500 metres

  • 26/0301/CLPU Granted

    24 Heol Isaf Nelson Treharris CF46 6NS

    Obtain Certificate of Lawful Proposed Development for proposed rear single storey extension

    22 Apr 2026 0m away Lawful development
  • 26/0050/HH Granted

    6 Heol Isaf Nelson Treharris CF46 6NS

    Erect rear roof extension, raise the ridge and rear dormer

    22 Jan 2026 71m away Householder
  • 26/0449/CLEU Awaiting decision

    32 Mountain Way Nelson Treharris CF46 6NY

    Obtain a Lawful Development Certificate to establish that the side extension was substantially completed more than 4 years prior to the submission of this application

    2 Jul 2026 209m away Lawful development
  • 25/0702/HH Granted

    16 Mountain Way Nelson Treharris CF46 6NY

    Extend porch across the front of the property

    13 Oct 2025 214m away Householder
  • 25/0542/COND Decided

    Former Wern Stores Caerphilly Road Nelson CF46 6NH

    Discharge conditions 03 (Protective Fencing), 04 (Landscaping), 09 (Contamination), 10 (Imported soils & hardcore), 11 (Contamination-validation), 12 (Dust Control), 13 (Noise Mitigation: Construction) and 20 (Boundary Treatments) of planning consent 25/0009/FULL (Erect two dwellings and access)

    5 Aug 2025 276m away Conditions
  • 26/0073/NMA Granted

    Wern Stores Caerphilly Road Nelson

    Seek approval of a non-material amendment to planning consent 25/0009/FULL (Erect two dwellings and access) to change part of the front elevation from stone to brick, amend roof profile and window layout

    3 Feb 2026 281m away Amendments

In Caerphilly

  • 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