Planning application
4 Lon-y-dderwen Nelson Treharris CF46 6HS
Works: Extension Small domestic
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within five years of the decision or the permission lapses.
Proposal
Erect single storey side extension
As published by the council, reference 25/0735/HH
Application record
- Reference
- 25/0735/HH
- Type
- Householder Application
- Status
- Decided
- Decision
- Granted
- Received
- 24 Oct 2025
- Validated
- 3 Nov 2025
- Decided
- 19 Dec 2025
- Ward
- Nelson
- Decision by
- Delegated
- Postcode
- CF46 6HS
Timeline
Dates from the published record
-
24 Oct 2025
Received by Caerphilly
-
3 Nov 2025
Validated
Checked as complete and ready for consideration.
-
19 Dec 2025
Decision issued: Granted
-
28 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
H.D.Williams LTD Agent, registered in Pontypridd
Active · incorporated 2007 · Pontypridd
58 applications on PlanIndex · across 3 councils · 85% granted
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
6 documents on file for this application
- DELEGATED REPORT
- DECISION
- LOCATION PLAN
- GIS
- APPLICATION FORM
- EXISTING & PROPOSED PLAN
Trade members open them from here.
Open the documentsWhat this grant of permission means
Caerphilly granted permission on 19 December 2025, 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.
About householder applications
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.
Nearby applications
Within 500 metres
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4 Lon-Y-Celyn Nelson Treharris CF46 6HT
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Refused Householder Extension 9 docsSmall domestic -
23 Lon-Y-Celyn Nelson Treharris CF46 6HT
Demolish garage and erect single storey side extension
Granted Full applications Extension Demolition 7 docsSmall domestic -
Yn Yr Ardd 1A Clos Cae Pwll Nelson Treharris CF46 6LA
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53B Shingrig Road Nelson Treharris CF46 6DU
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15 Rowan Close Nelson Treharris CF46 6EN
Erect two storey rear extension and side garage extension
Refused Householder Extension 7 docsDomestic -
29 Tawelfan Nelson Treharris CF46 6EH
Vary condition 02 (Approved Documents) of planning consent 25/0235/HH (Erect two storey side and single storey rear extension) to amend plans
Granted Extension 7 docsSmall domestic
Other householder applications
In Caerphilly
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26/0471/HH Granted
28 Denbigh Court Hendredenny Caerphilly CF83 2UN
Erect two storey side and rear extension, enlarge existing rear outbuilding, construct an accessible entrance ramp and re grade front garden to provide two off-street parking spaces and associated external alterations
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26/0603/HH Awaiting decision
3A Bryn Road Cefn Fforest Blackwood NP12 3NA
Erect two storey side extension
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26/0596/HH Awaiting decision
3 Crown Lane Pontllanfraith Blackwood NP12 2GD
Erect two storey side extension and a single storey rear extension
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26/0478/HH Refused
36 Bryn Yr Ysgol Penyrheol Caerphilly CF83 2BY
Demolish existing garage and erect a two storey side extension
-
26/0475/HH Granted
13 Maes-y-drudwen Caerphilly CF83 2QG
Erect ground floor bathroom extension