23 Allen Close Old St Mellons Cardiff CF3 5DH

1. 22 Mar 2023

   Received by Cardiff

2. 23 Mar 2023

   Validated

   Checked as complete and ready for consideration.

3. 19 May 2023

   Decision issued: Permission Granted

4. 22 Sep 2026

   Added to PlanIndex

Cardiff granted permission on 19 May 2023, subject to any conditions on the decision notice. Work must normally begin within five years or the permission lapses. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• St Johns College William Nicholls Drive Old St Mellons Cardiff CF3 5YX

  22/02663/REM Submitted 8 Nov 2022 150 yards away

  Variation of Condition 2 of 19/03267/MNR to substitute approved plans due to design changes and removal of conditions 4 and 5 as the tree is being felled

  Granted Amendments Trees 8 docs

• St Johns College William Nicholls Drive Old St Mellons Cardiff CF3 5YX

  21/01294/MNR Submitted 20 May 2021 150 yards away

  EXTENSION TO SIDE OF DINING ROOM WITH WALKWAY TO PROVIDE FIRE ESCAPE ACCESS

  Granted Full applications Extension 14 docs

• St Johns College William Nicholls Drive Old St Mellons Cardiff CF3 5YX

  22/01322/MNR Submitted 20 Jun 2022 150 yards away

  PROPOSED ARTIFICIAL LAWN AREA

  Refused Full applications 20 docs

• 54 Ty-to-maen Close Old St Mellons Cardiff CF3 5EZ

  26/00461/CLPUD Submitted 9 Mar 2026 150 yards away

  Demolition of existing conservatory and construction of rear single storey extension and replacement of garage roof.

  Granted Lawful development Extension Demolition 11 docs
  Small domestic

• Plantos Day Nursery Wern Fawr House Eastern Business Park Wern Fawr Lane Old St Mellons Cardiff CF3 5XA

  21/01467/MNR Submitted 10 Jun 2021 200 yards away

  PROPOSED EXTENSION OF CURTILAGE AND INSTALLATION OF MODULAR BUILDING TO PROVIDE ADDITIONAL SPACE FOR EXISTING PLANTOS DAY NURSERY

  Granted Full applications Extension 18 docs

• 1 White Oaks Drive Old St Mellons Cardiff CF3 5EX

  21/00275/DCH Submitted 3 Feb 2021 200 yards away

  TWO STOREY SIDE AND REAR EXTENSIONS WITH REMOVAL OF EXISTING CONSERVATORY, FRONT ENTRANCE PORCH EXTENSION COVERING TWO STOREYS, SIDE DORMER EXTENSIONS AND ADDITION OF NEW CROSSOVER ACCESS

  Granted Householder Extension Loft or dormer 10 docs
  Small domestic

• 26/01962/CLEUD Awaiting decision

  47 Lisvane Street Cathays Cardiff CF24 4LH

  Use of the property as a C4 House in Multiple Occupation (HMO).

  Received 16 Sep, published by the council 22 Sep 2026 Lawful development
• 26/01946/CLEUD Awaiting decision

  Pony Paddocks Wentloog Road Rumney Cardiff CF3 2EE

  The erection of a dwellinghouse

  Received 15 Sep, published by the council 22 Sep 2026 Lawful development
• 26/01947/CLEUD Awaiting decision

  Pony Paddocks Wentloog Road Rumney Cardiff CF3 2EE

  The erection of a dwellinghouse

  Received 15 Sep, published by the council 22 Sep 2026 Lawful development
• 26/01929/CLPUD Awaiting decision

  Central Transport Services Cardiff Council Coleridge Road Leckwith Cardiff CF11 8BT

  Ancillary welfare building.

  Received 11 Sep, published by the council 22 Sep 2026 Lawful development
• 26/01703/CLPUD Granted

  25 De Clare Drive Radyr Cardiff CF15 8HA

  Dormer loft conversion to rear

  Received 10 Aug, published by the council 13 Aug 2026 Lawful development