Annexe St Hilarion House Rhiwbina Hill Tongwynlais Cardiff CF14 6UP Data via plota.co.uk
Proposal
Change of use of detached annexe building from accommodation ancillary to St. Hilarion House to a separate self-contained dwelling with retention of the existing shared access, independent parking, refuse and cycle storage, services, drainage, curtilage, and renewable energy systems Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicted a decision around 9 Oct 2026; it is now day 78.
Documents 6
Statements & assessments 3
Application forms 1
Site constraints 3
Checked on 6 October 2026. Historic England, the Environment Agency, Natural England, 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 September 2026, the latest held for this property. The building may have changed since. View the certificate
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Important details
Decision outlook
Day 78, past the statutory target. 77% of changes of use in Cardiff are decided within thirteen weeks, which runs to 22 Oct 2026; extensions of time are common, and the council need not decide on the day. Last seen undecided on 7 Oct 2026.
Plota live figures for changes of use decided by Cardiff in the last twelve months, from validation. Cardiff decision record →
Public comments
No public comments yet.
5 neighbours consulted · Last counted 7 Oct 2026
Consultation & key dates
- Alt. reference
- PP-15099607
- Planning Portal ref
- PP-15099607
- Neighbours
- 14 Aug 2026
- Consultation
- 14 Aug 2026
- Comments by
- 4 Sept 2026
- Env. assessment
- No
Historical activity at this location
2 nearby applications on record - archival context, not part of the live application.
Nearby activity
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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Annexe St Hilarion House Rhiwbina Hill Tongwynlais Cardiff CF14 6UP
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The consultation period closed on 4 Sept 2026.