17 Underhill Drive Ton-teg Rhondda Cynon Taf CF38 1NW Data via plota.co.uk
Proposal
Proposed single-storey extension to both side elevations and the rear of the existing dwelling, including extensions to the existing annexe and its incorporation into the main dwelling to form additional habitable accommodation. Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision around 4 Dec 2026, from Rhondda's recent extensions.
Documents 15
Plans & drawings 12
Application forms 1
Site constraints 2
Checked on 15 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.
Building
From the energy performance certificate lodged in October 2024, the latest held for this property. The building may have changed since. View the certificate
Every application in Rhondda - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
Decision outlook
Day 14 of the 56-day target. Rhondda usually decides extensions by day 51.
Plota live figures for extensions decided by Rhondda in the last twelve months, from validation. Rhondda decision record →
Public comments
No public comments yet.
4 neighbours consulted · Last counted 22 Oct 2026
Consultation & key dates
- Comments by
- 4 Nov 2026
- Statutory expiry
- 9 Dec 2026
- Env. assessment
- No
Historical activity at this location
19 nearby applications on record - archival context, not part of the live application.
Nearby activity
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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17 Underhill Drive Ton-teg Rhondda Cynon Taf CF38 1NW
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Comments are open until 4 Nov 2026