20 St Andrew's Crescent Cathays Cardiff CF10 3DD

1. 26 Aug 2025

   Received by Cardiff

2. 27 Aug 2025

   Validated

   Checked as complete and ready for consideration.

3. 22 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 22 October 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Cardiff took a median of 56 days over the applications it decided in the last year.

This application is with Cardiff for determination, against a statutory target of eight weeks. Over the last year Cardiff decided full applications in a median of 86 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 10 St Andrew's Crescent Cathays Cardiff CF10 3DD

  26/00167/FUL Submitted 27 Jan 2026 50 yards away

  Change of use of ground floor from offices to student accommodation with minor elevational changes.

  Refused Full applications 12 docs

• 8 St Andrew's Crescent Cathays Cardiff CF10 3DD

  25/00550/FUL Submitted 5 Mar 2025 50 yards away

  Conversion of offices to 2 apartments at first and second floors and retain offices at lower ground and upper ground floors. External side access added for flats.

  Granted Full applications New dwelling 9 docs
  Several homes

• Marchmount House And Dumfries House 10 And 11 Dumfries Place City Centre

  21/01551/MNR Submitted 21 Jun 2021 100 yards away

  EXTERNAL ALTERATIONS TO EXISTING BUILDINGS INCLUDING REPLACEMENT OF ALL WINDOWS AND INSTALLATION OF ROOF MOUNTED PHOTOVOLTAIC PANELS AND A NEW RAMP FROM THE PAVEMENT TO THE FRONT ENTRANCES, LIVING WALLS AND BRIDGE LINK, LANDSCAPING AND ASSOCIATED DEVELOPMENT

  Granted Full applications Windows or glazing 12 docs

• Marchmount House And Dumfries House 10 And 11 Dumfries Place City Centre

  21/01553/MNR Submitted 21 Jun 2021 100 yards away

  EXTERNAL ALTERATIONS TO EXISTING BUILDINGS AND ASSOCIATED LANDSCAPING

  Granted Full applications 11 docs

• Stuttgarter Strasse Cathays Park

  A/21/00084/MNR Submitted 3 Jun 2021 100 yards away

  NON-ILLUMINATED, PVC LAMP-POST BANNER SIGNAGE

  Granted Advertising 12 docs

• First Floor 8 St Andrew's Place Cathays Cardiff CF10 3BE

  26/00472/FUL Submitted 10 Mar 2026 100 yards away

  Change of Use from Office (Use Class B1(a)) to Assembly and Leisure (Use Class D2).

  Granted Full applications 9 docs

• 26/01908/FUL Awaiting decision

  9 St Peter's Street Roath Cardiff CF24 3BA

  Demolition of existing two storey side extension and replacement with new remodelled two storey extension

  Received 10 Sep, published by the council 13 Sep 2026 Full applications
• 26/01395/FUL Granted

  190 Aberporth Road Llandaff North Cardiff CF14 2PS

  Change of use from c3 dwelling house to c4 6 bed HMO.

  Received 6 Jul, published by the council 22 Jul 2026 Full applications
• 26/01033/FUL Granted

  Llanmaes Estate Office Michaelston Road St Fagans Cardiff CF5 6DU

  Change of use to a physiotherapy clinic

  Received 19 May, published by the council 22 Jul 2026 Full applications
• 26/01706/FUL Granted

  Second Floor 2 Kingsway Cathays Cardiff CF10 3FD

  Install 4 grilles to the rear of the building

  Received 11 Aug, published by the council 17 Aug 2026 Full applications
• 26/01708/FUL Granted

  Ground Floor 37 Whitchurch Road Gabalfa Cardiff CF14 3JN

  CHANGE OF USE FROM TANNING SALON TO PROFFESIONAL ADVICE/SOLICITOR SERIVCES

  Received 11 Aug, published by the council 17 Aug 2026 Full applications