Planning application
26/00018/FUL
16 Mount Stuart Square Butetown Cardiff CF10 5DP
Proposal
Change of Use of the Second and Third floors from Office (B1) Use to a Dwelling (C3) Use. External works to include the addition of a window to the front elevation, new canopy to the entrance, and roof pitch alterations.
As published by the council, reference 26/00018/FUL
Timeline
Dates from the published record
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7 Jan 2026
Received by Cardiff
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22 Jan 2026
Validated
Checked as complete and ready for consideration.
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15 May 2026
Decision issued: Refuse
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22 Jul 2026
Added to PlanIndex
What refusal means
The process from here
The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.
Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.
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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26/00529/LBC Awaiting decision
1 Mount Stuart Arcade Mount Stuart Square Butetown Cardiff CF10 5EE
Conversion of existing commercial space into a two bedroom dwelling. Alterations to the existing shop front and first floor windows.
-
26/00528/FUL Awaiting decision
1 Mount Stuart Arcade Mount Stuart Square Butetown Cardiff CF10 5EE
Conversion of existing commercial space into a two bedroom dwelling. Alterations to the existing shop front and first floor windows.
-
25/01989/FUL Awaiting decision
20 James Street Butetown Cardiff CF10 5EX
Change of use from a 'coffee shop' to a 'nail bar' (sui generis).This will include the removal of the commercial kitchen facility and serving bar, along with remodeling of the internal area.
-
26/00599/LBC Granted
The Exchange Building Mount Stuart Square Butetown Cardiff CF10 5EB
Careful removal of northwestern chimney stack, including a section of the adjoining gable wall and associated dressed stone detailing to the north elevation for a period of up to five years, including secure storage of masonry to allow for future re-erection.
-
26/00486/FUL Granted
Unit 2 3 - 11 West Bute Street Butetown Cardiff CF10 5EN
Change of use from class A1 to D1.
-
26/00775/FUL Awaiting decision
59 Mount Stuart Square Butetown Cardiff CF10 5LR
Change of use from offices (B1a) to residential dwelling.
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).