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Planning application

25/0526/HH

20 Mountain Road Caerphilly CF83 1HJ

Granted Caerphilly Householder Application

Proposal

Demolish existing blockwork shed and replace with multi-functional outbuilding (garden storage, small DIY workshop space, outdoor office space and garden room)

As published by the council, reference 25/0526/HH

Timeline

Dates from the published record

  1. 29 Jul 2025

    Received by Caerphilly

  2. 22 Sep 2025

    Decision issued: Granted

  3. 28 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

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.

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

  • 26/0209/HH Granted

    Enfield 29 Mountain Road Caerphilly CF83 1HH

    Erect a single-storey front entrance porch

    24 Mar 2026 141m away Householder
  • 26/0345/CLPU Granted

    2 Corbett Crescent Caerphilly CF83 1HP

    Obtain a Lawful Development Certificate for proposed attic conversion

    13 May 2026 145m away Lawful development
  • 26/0198/CLPU Refused

    22 Bronrhiw Avenue Caerphilly CF83 1HF

    Obtain a Lawful Development Certificate for proposed attic conversion

    20 Mar 2026 155m away Lawful development
  • 26/0298/HH Granted

    Alynmore House 4 Dan-y-coed Caerphilly CF83 1HU

    Erect single storey side extension to provide utility & storage area

    22 Apr 2026 317m away Householder
  • 26/0117/FULL Awaiting decision

    Nant Y Calch Farm 31 Warren Drive Caerphilly CF83 1HQ

    Demolish existing farm buildings and re-develop site to deliver 44 No. 100% affordable housing scheme with associated access road, landscaping and amenity space

    19 Feb 2026 320m away Full applications
  • 25/0785/FULL Awaiting decision

    Caerphilly Indoor Market 5 Pentrebane Street Caerphilly CF83 1FR

    Demolish existing market and associated structures, erect a mixed use development, including up to 72 residential apartments, flexible retail units (A1/A2/A3), co-working office space (B1a), landscaping, engineering and associated works

    13 Nov 2025 451m away Full applications

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