Planning application
26/00836/FUL
55 Rhymney Street Cathays Cardiff CF24 4DH
Proposal
Change of Use to Class C4 House in Multiple Occupation with rear and side extensions and a rear dormer roof extension.
As published by the council, reference 26/00836/FUL
Timeline
Dates from the published record
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28 Apr 2026
Received by Cardiff
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22 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Cardiff for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
Nearby applications
Within 500 metres
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26/00959/FUL Withdrawn
57 Rhymney Street Cathays Cardiff CF24 4DH
Change of use to class C4 House in Multiple Occupation (HMO) with rear extensions and dormer loft conversion.
-
26/00898/FUL Awaiting decision
42 Rhymney Street Cathays Cardiff CF24 4DG
Demolition and partial reduction of rear extension; erection of rear dormer roof extension; and internal alterations to facilitate the change of use from a dwellinghouse (C3) to a 6-bedroom House in Multiple Occupation (C4)
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26/00313/CLPUD Granted
11 Coburn Street Cathays Cardiff CF24 4BQ
Erection of ground floor rear extension, rear dormer roof extension and addition of rooflight to the front roof elevation
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25/02834/FUL Granted
92 Rhymney Street Cathays Cardiff CF24 4DG
Change of Use from a C3 Dwelling House to a seven person Sui Generis House of Multiple Occupation. Works to include rear dormer roof extension, rear extension and insertion of roof light to the front roof plane.
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26/00261/FUL Awaiting decision
117 Richmond Road Roath Cardiff CF24 3BS
Retention of building and conversion to 2 serviced flats.
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26/00256/FUL Refused
115 Richmond Road Roath Cardiff CF24 3BS
Retention of store and garage building with internal alterations.
Other full applications applications
In Cardiff
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26/01029/FUL Granted
78 Cae Glas Road Rumney Cardiff CF3 3JW
Single storey rear extensions and change of use to 2 independent dwellings.
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26/00451/FUL Granted
48 Longcross Street Adamsdown Cardiff CF24 0JW
Retrospective change of use from class C3 dwellinghouse to C4 House in Multiple Occupation (HMO).
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26/01224/FUL Granted
Unit 10 Eastgate Business Park Wentloog Avenue Trowbridge Cardiff CF3 2EY
Retrospective application for the installation of an air condenser unit and associated ductwork.
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26/01010/FUL Refused
136 Tewkesbury Street Cathays Cardiff CF24 4QS
Conversion to class C4 HMO with ground floor rear/side extension.
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26/00310/FUL Granted
1A Egerton Street Canton Cardiff CF5 1RF
Demolition of commercial retail warehouse and construction of 4no. dwellings (2no. semi-detached pairs).