Planning application
26/00270/CLPUD
20 Ty-mawr Avenue Rumney Cardiff CF3 3AF
Proposal
Side extension
As published by the council, reference 26/00270/CLPUD
Timeline
Dates from the published record
-
9 Feb 2026
Received by Cardiff
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23 Feb 2026
Decision issued: Permission Granted
-
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
-
26/00026/CLPUD Granted
13 New Road Rumney Cardiff CF3 3AA
Hip to gable roof extension, rear dormer roof extension and addition of rooflights to front roof elevation
-
25/02655/HSE Granted
25 Uplands Road Rumney Cardiff CF3 3AN
Proposed hip to gable roof extension with rear dormer
-
26/00489/HSE Granted
669 Newport Road Rumney Cardiff CF3 4DJ
Single storey rear extension.
-
25/01869/FUL Awaiting decision
Unit 12 River Bridge Business Centre Rhymney River Bridge Road Penylan Cardiff CF23 9FP
Side extension to warehouse
-
26/00525/FUL Granted
Wm Morrisons Supermarkets Ipswich Road Penylan Cardiff CF23 9AQ
Creation of charging zones, erection of EV chargers, erection of canopy, sub-station enclosure, LV panel, meter cabinet and associated works.
-
25/02756/FUL Awaiting decision
Unit 6 Water Edge Industrial Estate Rhymney River Bridge Road Penylan Cardiff CF23 9AF
Rear extension to warehouse.
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).