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Planning application

33 Harriet Street Cathays Cardiff CF24 4BU

Granted Cardiff 25/01745/HSE Householder Planning Permission

Works: Extension 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

Ground floor rear extension to existing class C4 House in Multiple Occupation (HMO)

As published by the council, reference 25/01745/HSE

Application record

Reference
25/01745/HSE
Type
Householder Planning Permission
Status
Decided
Decision
Granted As published: Permission Granted
Received
28 Jul 2025
Validated
28 Jul 2025
Decided
27 Nov 2025
Ward
CATHAYS
Decision by
Delegated to Group Leader
Postcode
CF24 4BU

Site history

Applications at this address on the Cardiff register

This site has had 2 applications since 2025: 2 approved, 0 refused.

  • 26/01615/NMA Granted

    33 Harriet Street Cathays Cardiff CF24 4BU

    Proposed Non-Material Amendment to Planning Permission 25/01745/HSE- increase extension roof height.

    Decided 12 Aug 2026 Amendments

Timeline

Dates from the published record

  1. 28 Jul 2025

    Received by Cardiff

  2. 27 Nov 2025

    Decision issued: Permission Granted

  3. 22 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 26/01615/NMA Granted

    33 Harriet Street Cathays Cardiff CF24 4BU

    Proposed Non-Material Amendment to Planning Permission 25/01745/HSE- increase extension roof height.

    Decided 12 Aug 2026 Amendments

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.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Cardiff granted permission on 27 November 2025, 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

  • 33 Harriet Street Cathays Cardiff CF24 4BU

    26/01615/NMA Submitted 28 Jul 2026 0m away

    Proposed Non-Material Amendment to Planning Permission 25/01745/HSE- increase extension roof height.

    Granted Amendments Extension 5 docs
  • 41 Harriet Street Cathays Cardiff CF24 4BW

    25/01375/FUL Submitted 13 Jun 2025 31m away

    Re-location of windows and conversion of loft to bedrooms to existing C4 House of multiple Occupation.

    Granted Full applications Windows or glazing 8 docs
  • 3 Brydges Place Cathays Cardiff CF24 4DP

    25/01374/FUL Submitted 13 Jun 2025 38m away

    Conversion and extension of existing garages, including upward extensions, to form 2no. additional two storey residential dwellings (Use Class C3).

    Withdrawn Full applications Extension 8 docs
  • Land To Side Of 3 Brydges Place Cathays Cardiff CF24 4DP

    26/01523/FUL Submitted 22 Jul 2026 40m away

    91% historically approved · decision due ~16 Sep

    Conversion and upward extension of single storey garage into a part single storey part two storey dwelling.

    Awaiting decision Full applications Extension 8 docs
    Small domestic
  • 42 Richards Street Cathays Cardiff CF24 4DB

    25/01372/FUL Submitted 13 Jun 2025 45m away

    Second floor rear extension, hip to gable roof extension and external alterations to existing C4 House of Multiple Occupation.

    Refused Full applications Extension Loft or dormer 14 docs
  • 34 Harriet Street Cathays Cardiff CF24 4BY

    22/02909/CLU Submitted 5 Dec 2022 48m away

    Large sui generis house of multiple occupation

    Withdrawn Lawful development 7 docs

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