20 Ruperra Close Old St Mellons Cardiff CF3 6HX Data via plota.co.uk
Proposal
New front porch, ground and first floor side extensions, proposed car port and other associated works. Data via plota.co.uk
Application progress
Approved on 2 Jun 2026 · Delegated to Group Leader · Last checked 6 Sept 2026
Documents 9
Decision & officer reports 2
Statements & assessments 1
Plans & drawings 3
Application forms 1
Associated applications 2
- New front porch, ground and first floor side extensions, proposed car port and other associated works.
Site constraints 1
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.
Sales history 3
Last sold for £875,000 in May 2026. 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 May 2025, the latest held for this property. The building may have changed since. View the certificate
Every application in Cardiff - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- Cardiff
- Application type
- Householder Planning Permission
- Postcode
- CF3 6HX
- Received
- 1 Apr 2026
- Validated
- 10 Apr 2026
- Ward
- PONTPRENNAU AND OLD ST MELLONS
- Case officer
- Show
- Decision
- Permission Granted
- Decision date
- 2 Jun 2026
- Decision level
- Delegated to Group Leader
- Applicant
- Show
- Agent
- KnK Design Studio Ltd
How this decision compares
Decided in 53 days from validation, 4 days slower than Cardiff's median of 49 for extensions. Approved, as 94% of extensions here are.
Plota live figures for extensions decided by Cardiff in the last twelve months, from validation. Cardiff decision record →
Public comments
No public comments yet.
4 neighbours consulted · Last counted 6 Sept 2026
Consultation & key dates
- Alt. reference
- PP-14828831
- Planning Portal ref
- PP-14828831
- Neighbours
- 15 Apr 2026
- Consultation
- 15 Apr 2026
- Comments by
- 6 May 2026
- Env. assessment
- No
Historical activity at this location
12 previous applications on record - archival context, not part of the live application.
Previous applications at this address
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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20 Ruperra Close Old St Mellons Cardiff CF3 6HX
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