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Planning application

6 Lon-y-deri Rhiwbina Cardiff CF14 6JN

Awaiting decision Cardiff 25/02421/HSE Householder Planning Permission

Works: Extension Loft or dormer Small domestic

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

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Removal of existing conservatory, extension, and garage. Single storey rear and side extension, roof extensions including hip to gable to front and rear and side dormer roof extension with new driveway and minor alterations to the external boundary wall.

As published by the council, reference 25/02421/HSE

Application record

Reference
25/02421/HSE
Type
Householder Planning Permission
Status
Registered
Received
20 Oct 2025
Validated
21 Oct 2025
Ward
RHIWBINA
Postcode
CF14 6JN

Site history

Applications at this address on the Cardiff register

This site has had 2 applications since 2025: 1 approved, 0 refused.

  • 26/01249/NMA Granted

    6 Lon-y-deri Rhiwbina Cardiff CF14 6JN

    Proposed Non-Material Amendment to Planning Permission 25/02421/HSE Retention of existing roofing tiles. New roofing to the dormer and rear extension. Walls of side dormer render finished.

    Decided 12 Aug 2026 Amendments

Timeline

Dates from the published record

  1. 20 Oct 2025

    Received by Cardiff

  2. 21 Oct 2025

    Validated

    Checked as complete and ready for consideration.

  3. 22 Jul 2026

    Added to PlanIndex

  4. Decision

    Awaiting decision

    Decision expected by 16 December 2025, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Cardiff took a median of 56 days over the applications it decided in the last year.

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 26/01249/NMA Granted

    6 Lon-y-deri Rhiwbina Cardiff CF14 6JN

    Proposed Non-Material Amendment to Planning Permission 25/02421/HSE Retention of existing roofing tiles. New roofing to the dormer and rear extension. Walls of side dormer render finished.

    Decided 12 Aug 2026 Amendments

Who's behind it

Company information only, from the register and Companies House

Patrwm Architects LLP Agent, an architecture practice registered in Cardiff

Active · incorporated 2021 · Cardiff

2 applications on PlanIndex

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

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

6 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.

Trade members open them from here.

Open the documents

What happens while it is decided

This application is with Cardiff for determination, against a statutory target of eight weeks. Over the last year Cardiff decided householder applications in a median of 62 days. More in our guide to how long planning decisions take.

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

  • 6 Lon-y-deri Rhiwbina Cardiff CF14 6JN

    26/01249/NMA Submitted 16 Jun 2026 3m away

    Proposed Non-Material Amendment to Planning Permission 25/02421/HSE Retention of existing roofing tiles. New roofing to the dormer and rear extension. Walls of side dormer render finished.

    Granted Amendments Extension Loft or dormer 7 docs

  • 12 Lon-Y-Deri Rhiwbina Cardiff CF14 6JN

    21/00743/DCH Submitted 24 Mar 2021 29m away

    GROUND AND FIRST FLOOR REAR AND SIDE EXTENSIONS AND WORKS TO EXISTING SIDE DORMER EXTENSION

    Granted Householder Extension Loft or dormer 14 docs
    Domestic

  • 89 Heol-y-deri Rhiwbina Cardiff CF14 6HE

    25/02854/HSE Submitted 2 Dec 2025 73m away

    Rear two storey and single storey extension, with garden room.

    Granted Householder Extension 24 docs
    Small domestic

  • 14 Lon-y-dderwen Rhiwbina Cardiff CF14 6JQ

    22/03056/HSE Submitted 22 Dec 2022 86m away

    Single storey rear and part side extension

    Granted Householder Extension 6 docs
    Small domestic

  • 28 Lon-Y-Deri Rhiwbina Cardiff CF14 6JN

    19/02937/DCH Submitted 6 Nov 2019 103m away

    FRONT DORMER REMODELLING, ADDITION OF SIDE DORMER AND SINGLE STOREY SIDE EXTENSION

    Granted Householder Extension Loft or dormer 9 docs
    Small domestic

  • 75 Heol-y-deri Rhiwbina Cardiff CF14 6HD

    25/01864/HSE Submitted 11 Aug 2025 109m away

    Single storey rear extension

    Granted Householder Extension 10 docs
    Small domestic

In Cardiff

  • 26/01907/HSE Awaiting decision

    46 Oakley Place Grangetown Cardiff CF11 7EW

    Rear dormer roof extension.

    10 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.

    18 May 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.

    30 Jul 2026 Householder
  • 26/01592/HSE Granted

    20 Meadow Street Pontcanna Cardiff CF11 9PY

    Construction of single storey rear wrap around extension.

    29 Jul 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.

    9 Sep 2026 Householder