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Planning application

17 Treorky Street Cathays Cardiff CF24 4JP

Granted Cardiff 25/02997/HSE Householder Planning Permission

Works: Extension Loft or dormer Domestic

Read from the description, not a valuation. How we read the register

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

Proposal

Rear extension and dormer loft conversion.

As published by the council, reference 25/02997/HSE

Application record

Reference
25/02997/HSE
Type
Householder Planning Permission
Status
Decided
Decision
Granted As published: Permission Granted
Received
29 Dec 2025
Validated
29 Dec 2025
Decided
23 Mar 2026
Ward
CATHAYS
Decision by
Delegated to Group Leader
Postcode
CF24 4JP

Timeline

Dates from the published record

  1. 29 Dec 2025

    Received by Cardiff

  2. 23 Mar 2026

    Decision issued: Permission Granted

  3. 22 Jul 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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What this grant of permission means

Cardiff granted permission on 23 March 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 householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 6B Merthyr Street Cathays Cardiff CF24 4JJ

    26/00978/CLEUD Submitted 11 May 2026 48m 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 58m away

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

    Granted Lawful development 5 docs

  • 12 Merthyr Street Cathays Cardiff CF24 4JJ

    23/00046/CLD Submitted 9 Jan 2023 62m 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

  • 27 Minister Street Cathays Cardiff

    25/00641/FUL Submitted 14 Mar 2025 66m away

    Proposed ground floor extension and alterations to existing flats.

    Granted Full applications New dwelling Extension 13 docs

  • 34 Maindy Road Cathays Cardiff CF24 4HP

    25/02738/FUL Submitted 24 Nov 2025 105m away

    Conversion of existing house to 8 bed House in Multiple Occupation (Sui Generis). Removal of existing rear extensions and costruction of part single storey part two storey rear extension. Rear dormer roof extension.

    Granted Full applications Extension Loft or dormer 18 docs
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  • 29 Hirwain Street Cathays Cardiff CF24 4JG

    22/02386/FUL Submitted 11 Oct 2022 126m 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

  • 26/01907/HSE Awaiting decision

    46 Oakley Place Grangetown Cardiff CF11 7EW

    Rear dormer roof extension.

    Received 10 Sep, published by the council 13 Sep 2026 Householder
  • 26/01013/HSE Granted

    74 Beulah Road Rhiwbina Cardiff CF14 6LY

    Rear, side and front extensions, raised roof ridge height, front and rear dormers and minor internal and external works.

    Received 18 May, published by the council 22 Jul 2026 Householder
  • 26/01611/HSE Granted

    6 Dewi Court 47 Cardiff Road Llandaff Cardiff CF5 2ET

    Replacement of existing sliding patio doors with french doors, increase height of existing garden boundary walls on 2 sides with trellis and installation of stand alone garden room.

    Received 30 Jul, published by the council 6 Aug 2026 Householder
  • 26/01592/HSE Granted

    20 Meadow Street Pontcanna Cardiff CF11 9PY

    Construction of single storey rear wrap around extension.

    Received 29 Jul, published by the council 6 Aug 2026 Householder
  • 26/01905/HSE Awaiting decision

    9 Clos William Rhiwbina Cardiff CF14 6QJ

    Single Storey Side/Rear Extension with Internal Alterations. Loft Reconfiguration with Dormers. Detached Garage Enlargement.

    Received 9 Sep, published by the council 13 Sep 2026 Householder