21 Heol Isaf Nelson Treharris CF46 6NS Data via plota.co.uk
Proposal
Demolish existing rear conservatory and detached garage and construct new single storey rear extension Data via plota.co.uk
Application progress
Approved on 4 Sept 2026 · Delegated · Last checked 4 Sept 2026
Documents 9
Decision & officer reports 2
Statements & assessments 3
Plans & drawings 2
Application forms 1
Consultation & comments 1
Site constraints 2
Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, the Mining Remediation Authority, the British Geological Survey and UK Health Security Agency (radon, contains BGS materials © UKRI) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
Sales history 3
Last sold for £156,000 in August 2014. Semi-detached house, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in July 2011, the latest held for this property. The building may have changed since. View the certificate
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Important details
- Council
- Caerphilly
- Application type
- Householder Application
- Postcode
- CF46 6NS
- Received
- 10 Jul 2026
- Validated
- 14 Jul 2026
- Ward
- Nelson
- Case officer
- Show
- Target decision
- 8 Sept 2026
- Decision
- Granted
- Decision date
- 4 Sept 2026
- Decision level
- Delegated
- Applicant
- Show
- Agent
- H D Williams Ltd
How this decision compares
Decided in 52 days from validation, about the council's usual 54 days. Approved, as 63% of demolitions here are.
Plota live figures for demolitions decided by Caerphilly in the last twelve months, from validation. Caerphilly decision record →
Public comments
No public comments yet.
4 neighbours consulted · Last counted 4 Sept 2026
Consultation & key dates
- Neighbours
- 15 Jul 2026
- Consultation
- 15 Jul 2026
- Comments by
- 5 Aug 2026
- Statutory expiry
- 8 Sept 2026
- Env. assessment
- No
Historical activity at this location
15 nearby applications on record - archival context, not part of the live application.
Nearby activity
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.
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21 Heol Isaf Nelson Treharris CF46 6NS
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