Planning application
25/02942/FUL
42 May Street Cathays Cardiff CF24 4EX
Proposal
Ground floor rear extension, rear dormer roof extension and Change of Use from class C4 House in Multiple Occupation to large Sui Generis House in Multiple Occupation.
As published by the council, reference 25/02942/FUL
Timeline
Dates from the published record
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16 Dec 2025
Received by Cardiff
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8 Jun 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 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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25/02219/FUL Awaiting decision
The Salvation Army May Street Cathays Cardiff CF24 4EX
Conversion of former hall to 10 self contained flats with side two and single storey extension plus alterations to external openings.
-
26/01145/CLEUD Granted
60 May Street Cathays Cardiff CF24 4EY
Use of the property as a C4 House in Multiple Occupation (HMO).
-
25/02819/FUL Refused
Rear Of 89 Crwys Road Cathays Cardiff CF24 4NF
Conversion of a disused garage/storage building situated to the rear of 89 Crwys Road into residential dwelling.
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26/00098/FUL Granted
Site Adjacent To 15 Fanny Street Cathays Cardiff CF24 4EH
Dwelling with Residential Garage to Ground Floor
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26/01172/HSE Awaiting decision
69 May Street Cathays Cardiff CF24 4EY
Ground floor rear extension to existing class C4 House in Multiple Occupation.
-
26/00997/FUL Awaiting decision
64-66 Crwys Road Cathays Cardiff CF24 4NP
Proposed 3 No. Security Roller Shutters over existing openings.
Other full applications applications
In Cardiff
-
26/01029/FUL Granted
78 Cae Glas Road Rumney Cardiff CF3 3JW
Single storey rear extensions and change of use to 2 independent dwellings.
-
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).
-
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.
-
26/01010/FUL Refused
136 Tewkesbury Street Cathays Cardiff CF24 4QS
Conversion to class C4 HMO with ground floor rear/side extension.
-
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).