Planning application
20 Ruperra Close Old St Mellons Cardiff CF3 6HX
Works: Extension Windows or glazing
Relates to 26/00673/HSE
Permission granted. Work must normally begin within five years of the decision or the permission lapses.
Proposal
Proposed Non-Material Amendment to Planning Permission 26/00673/HSE- Relocation of windows and doors and small infill between the main house and side extension.
As published by the council, reference 26/01452/NMA
Application record
- Reference
- 26/01452/NMA
- Type
- Non Material Amendment
- Status
- Decided
- Decision
- Permission Granted
- Received
- 13 Jul 2026
- Validated
- 13 Jul 2026
- Decided
- 28 Jul 2026
- Ward
- PONTPRENNAU AND OLD ST MELLONS
- Decision by
- Delegated to Group Leader
- Postcode
- CF3 6HX
Site history
Applications at this address on the Cardiff register
This site has had 3 applications since 2025: 3 approved, 0 refused.
-
26/00673/HSE Granted
20 Ruperra Close Old St Mellons Cardiff CF3 6HX
New front porch, ground and first floor side extensions, proposed car port and other associated works.
-
25/02789/HSE Granted
20 Ruperra Close Old St Mellons Cardiff CF3 6HX
FIrst floor side extensions, ground floor side and rear extension, and relocation of carport, including associated external alterations.
Timeline
Dates from the published record
-
13 Jul 2026
Received by Cardiff
-
22 Jul 2026
Added to PlanIndex
-
28 Jul 2026
Decision issued: Permission Granted
Related applications
Cases linked to this one on the register
-
26/00673/HSE Granted
20 Ruperra Close Old St Mellons Cardiff CF3 6HX
New front porch, ground and first floor side extensions, proposed car port and other associated works.
Who's behind it
Company information only, from the register and Companies House
KnK Design Studio Ltd Agent, a design practice registered in Cardiff
Active · incorporated 2024 · Cardiff
37 applications on PlanIndex · across 3 councils · 88% 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
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Cardiff granted permission on 28 July 2026, 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 amendment applications
An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
20 Ruperra Close Old St Mellons Cardiff CF3 6HX
New front porch, ground and first floor side extensions, proposed car port and other associated works.
Granted Householder Extension 10 docsSmall domestic -
20 Ruperra Close Old St Mellons Cardiff CF3 6HX
FIrst floor side extensions, ground floor side and rear extension, and relocation of carport, including associated external alterations.
Granted Householder Extension 7 docsDomestic -
6 Ruperra Close Old St Mellons Cardiff CF3 6HX
First floor side extension, external alterations to ground floor front elevation, single storey side and rear extension. (24/00861/HSE - Approved 09 September 2024 - Subsequently Varied Under 24/01679/NMA):- Variation of Condition 2 (Approved Plans) of Planning Permission 24/00861/HSE to amend the approved scheme as follows: 1) Additional single storey side extension.
Granted Amendments Extension 10 docsSmall domestic -
6 Ruperra Close Old St Mellons Cardiff CF3 6HX
Proposed Non-Material Amendment to Planning Permission 24/00861/HSE - Depth of proposed rear extension increased and sloped roof replaced with balcony area. Minor alterations to the internal layout.
Granted Amendments Extension 18 docs -
Land To The North Of Bridge Road Old St Mellons Cardiff
Construction of 3no. residential dwellings
Withdrawn Outline 16 docs -
Wayside Bridge Road Old St Mellons Cardiff CF3 6UY
Two storey side and rear extension
Refused Householder Extension 6 docsDomestic
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26/01720/NMA Granted
66 Caegwyn Road Heath Cardiff CF14 1TD
Proposed Non-Material Amendment to Planning Permission 23/02187/FUL - To vary the list of approved plans listed under condition 2.
-
26/01769/NMA Granted
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Proposed Non-Material Amendment to Planning Permission 25/02767/HSE - To reduce rear extension size and install new doors/windows and alter proposed window sizes
-
26/01654/NMA Granted
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Proposed Non-Material Amendment to Planning Permission 22/00537/MJR- add Tree Translocation Assessment Report to Condition 2 (Approved Plans) and Condition 4 (Accordance with Submitted Details and GIS Period)
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26/01748/NMA Granted
BBC Wales Broadcasting House Llantrisant Road Llandaff Cardiff CF5 2YQ
Non-Material Amendment to Planning Permission 16/01059/MJR- addition of juliet balconies.
-
26/01664/NMA Granted
Riverbank Special School Vincent Road Caerau Cardiff CF5 5AQ
Proposed Non-Material Amendment to Planning Permission 26/00949/FUL- minor amendments to fence heights, gate widths, kerbing and the location of gate 1, with new pedestrian access, speed table and associated works.