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Planning application

6B Merthyr Street Cathays Cardiff CF24 4JJ

Granted Cardiff 26/00978/CLEUD Cert of Lawfulness Existing (s191)

Works: New dwelling

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

Proposal

Use of the property as two self-contained flats.

As published by the council, reference 26/00978/CLEUD

Application record

Reference
26/00978/CLEUD
Type
Cert of Lawfulness Existing (s191)
Status
Decided
Decision
Granted As published: Permission Granted
Received
11 May 2026
Validated
22 May 2026
Decided
17 Jun 2026
Ward
CATHAYS
Decision by
Delegated to Group Leader
Postcode
CF24 4JJ

Timeline

Dates from the published record

  1. 11 May 2026

    Received by Cardiff

  2. 22 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 17 Jun 2026

    Decision issued: Permission Granted

  4. 22 Jul 2026

    Added to PlanIndex

Documents

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

10 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 17 June 2026, 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 500 metres

  • 12 Merthyr Street Cathays Cardiff CF24 4JJ

    23/00046/CLD Submitted 9 Jan 2023 16m away

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

    Granted Lawful development Extension Loft or dormer 7 docs

  • 19 Treherbert Street Cathays Cardiff CF24 4JN

    26/01363/CLEUD Submitted 1 Jul 2026 39m away

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

    Granted Lawful development 5 docs

  • 17 Treorky Street Cathays Cardiff CF24 4JP

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  • 29 Hirwain Street Cathays Cardiff CF24 4JG

    22/02386/FUL Submitted 11 Oct 2022 89m away

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

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  • 27 Minister Street Cathays Cardiff

    25/00641/FUL Submitted 14 Mar 2025 91m away

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    Granted Full applications New dwelling Extension 13 docs

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    20/00136/MNR Submitted 21 Jan 2020 132m away

    DISCHARGE OF CONDITIONS 5 (SOUND INSULATION) AND 8 (EXTRACTION DETAILS) OF 19/02219/MNR

    Withdrawn Conditions 7 docs

In Cardiff

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    Received 20 Aug, published by the council 29 Aug 2026 Lawful development
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    Received 20 Aug, published by the council 29 Aug 2026 Lawful development
  • 26/01883/CLPUD Awaiting decision

    Heathfield 135 Pantbach Road Heath Cardiff CF14 1TY

    Proposed enlargement of the existing single-storey rear extension and removal of the existing flat roof and construction of a pitched roof over the enlarged extension with associtated works

    Received 8 Sep, published by the council 13 Sep 2026 Lawful development
  • 26/01990/CLEUD Awaiting decision

    5 Talworth Street Roath Cardiff CF24 3EH

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    Received 8 Sep, published by the council 13 Sep 2026 Lawful development