Planning application
26/00461/CLPUD
54 Ty-to-maen Close Old St Mellons Cardiff CF3 5EZ
Proposal
Demolition of existing conservatory and construction of rear single storey extension and replacement of garage roof.
As published by the council, reference 26/00461/CLPUD
Timeline
Dates from the published record
-
9 Mar 2026
Received by Cardiff
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11 Mar 2026
Validated
Checked as complete and ready for consideration.
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21 Apr 2026
Decision issued: Permission Granted
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22 Jul 2026
Added to PlanIndex
What a grant of permission means
The process from here
Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.
Work must normally begin within five years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.
About lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
-
26/00960/REN Granted
Ty Rato Ty'r Winch Road Old St Mellons Cardiff CF3 5UX
Renewal of Planning Permission 21/00937/DCH for a side extension to create granny annexe.
-
26/00906/FUL Awaiting decision
Plot A Wern Fawr Lane Old St Mellons Cardiff CF3 5EA
Development of a discount retail foodstore (Use Class A1), together with access, parking, external lighting, landscaping, drainage, and other associated site works.
-
25/02754/HSE Granted
Little Acre Druidstone Road Old St Mellons Cardiff CF3 6XD
Conversion of the existing double garage into a home office, the erection of a garage and retention of rear structure.
-
25/02410/HSE Awaiting decision
9 Melville Avenue Old St Mellons Cardiff CF3 5TZ
Alterations to Elevations, including Gable Forms and Flat Roof Extensions to property at first floor level, a first-floor rear roof terrace, and various other alterations to main property and to garage
-
26/00217/DOC Decided
9 Melville Avenue Old St Mellons Cardiff CF3 5TZ
Discharge of Conditions 3 (Arboricultural Method Statement and Tree Protection) and 4 (Soft Landscaping) of 25/02410/HSE.
-
25/02734/WTTPF Granted
9 Melville Avenue Old St Mellons Cardiff CF3 5TZ
Removal of a section of hedge which includes 4 TPO trees
Other lawful development applications
In Cardiff
-
26/01314/CLPUD Granted
Beech House Pascal Close Trowbridge Cardiff
Remove air handling unit and chiller systems. The plinth to be removed and a replacement plinth being installed on the same footprint. Installation of a new liquid nitrogen tank.
-
26/01449/CLPUD Awaiting decision
53 Westbourne Road Whitchurch Cardiff CF14 2BR
single storey flat roof side and rear extension
-
26/01429/CLPUD Awaiting decision
311 Western Avenue Llandaff Cardiff CF5 2BA
Works associated with a loft conversion
-
26/01415/CLPUD Awaiting decision
85 Wenallt Road Rhiwbina Cardiff CF14 6TP
Construction of rear roof dormer and installation of roof windows.
-
26/01391/CLEUD Awaiting decision
173 Rhymney Street Cathays Cardiff CF24 4DL
Use of the property as a Sui Generis House in Multiple Occupation (HMO).