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Planning application

12 Merthyr Street Cathays Cardiff CF24 4JJ

Granted Cardiff 23/00046/CLD Certificate of Lawful Dev - proposed

Works: Extension Loft or dormer

Permission granted. Work must normally begin within five years of the decision or the permission lapses.

Proposal

GROUND FLOOR REAR EXTENSION AND DORMER LOFT CONVERSION TO EXISTING CLASS C4 HOUSE IN MULTIPLE OCCUPATION

As published by the council, reference 23/00046/CLD

Application record

Reference
23/00046/CLD
Type
Certificate of Lawful Dev - proposed
Status
Decided
Decision
Granted As published: Permission Granted
Received
9 Jan 2023
Validated
26 Jan 2023
Decided
16 Mar 2023
Ward
CATHAYS
Decision by
Delegated Decision
Postcode
CF24 4JJ

Timeline

Dates from the published record

  1. 9 Jan 2023

    Received by Cardiff

  2. 26 Jan 2023

    Validated

    Checked as complete and ready for consideration.

  3. 16 Mar 2023

    Decision issued: Permission Granted

  4. 29 Aug 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

7 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

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Open the documents

What this grant of permission means

Cardiff granted permission on 16 March 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.

About lawful development applications

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.

Nearby applications

Within 0.3 miles

  • 6B Merthyr Street Cathays Cardiff CF24 4JJ

    26/00978/CLEUD Submitted 11 May 2026 50 yards away

    Use of the property as two self-contained flats.

    Granted Lawful development New dwelling 10 docs

  • 19 Treherbert Street Cathays Cardiff CF24 4JN

    26/01363/CLEUD Submitted 1 Jul 2026 50 yards away

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

    Granted Lawful development 5 docs

  • 29 Merthyr Street Cathays Cardiff CF24 4JL

    21/01356/MNR Submitted 26 May 2021 50 yards away

    USE AS A LARGE SUI GENERIS HOUSE OF MULTIPLE OCCUPATION

    Granted Lawful development 6 docs

  • 17 Treorky Street Cathays Cardiff CF24 4JP

    25/02997/HSE Submitted 29 Dec 2025 50 yards away

    Rear extension and dormer loft conversion.

    Granted Householder Extension Loft or dormer 7 docs
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  • 3 Treherbert Street Cathays Cardiff CF24 4JN

    22/03041/FUL Submitted 21 Dec 2022 100 yards away

    GROUND AND FIRST FLOOR REAR EXTENSIONS, REAR DORMER AND CONVERSION TO CLASS C4 HOUSE IN MULTIPLE OCCUPATION

    Granted Full applications Extension Loft or dormer 8 docs

  • 29 Hirwain Street Cathays Cardiff CF24 4JG

    22/02386/FUL Submitted 11 Oct 2022 100 yards away

    CONVERSION TO 2 FLATS WITH GROUND AND FIRST FLOOR EXTENSION AND DORMER LOFT CONVERSION

    Granted Full applications New dwelling Extension +1 8 docs
    Several homes

In Cardiff

  • 26/01578/CLPUD Granted

    207 Fidlas Road Llanishen Cardiff CF14 5NA

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    Received 28 Jul, published by the council 6 Oct 2026 Lawful development
  • 26/02084/CLPUD Awaiting decision

    24 Bassetts Field Rhiwbina Cardiff CF14 9UG

    Proposed single storey flat roof extension to rear

    Received 2 Oct, published by the council 6 Oct 2026 Lawful development
  • 26/02050/CLPUD Awaiting decision

    First And Second Floor 85 Romilly Crescent Pontcanna Cardiff CF11 9NQ

    Change of use from Residential to C6 short-term let.

    Received 25 Sep, published by the council 6 Oct 2026 Lawful development
  • 26/02053/CLPUD Awaiting decision

    32 Homelands Road Heath Cardiff CF14 1UJ

    Single storey rear extension.

    Received 24 Sep, published by the council 6 Oct 2026 Lawful development
  • 26/01863/CLPUD Granted

    6 Llandennis Green Cyncoed Cardiff CF23 6JX

    Proposed conversion of existing integral garage to ancillary domestic accommodation, including minor internal alterations

    Received 4 Sep, published by the council 22 Sep 2026 Lawful development