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Planning application

6 Lon-y-deri Rhiwbina Cardiff CF14 6JN

Granted 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

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

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
Decided
Decision
Granted As published: Permission Granted
Received
20 Oct 2025
Validated
21 Oct 2025
Decided
16 Dec 2025
Ward
RHIWBINA
Decision by
Delegated to Group Leader
Postcode
CF14 6JN

Site history

Applications at this address on the Cardiff register

This site has had 2 applications since 2025: 2 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. 16 Dec 2025

    Decision issued: Permission Granted

  4. 22 Jul 2026

    Added to PlanIndex

Cases linked to this one on the register

1 later application on the register refers to this one:

  • 26/01249/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

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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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What this grant of permission means

Cardiff granted permission on 16 December 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 0.3 miles

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

    26/01249/NMA Submitted 16 Jun 2026 50 yards 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 50 yards 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 100 yards away

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

    Granted Householder Extension 24 docs
    Small domestic

  • 4 Lon-y-Dderwen Rhiwbina Cardiff CF14 6JQ

    23/00368/HSE Submitted 16 Feb 2023 100 yards away

    Hip to Gable roof extensions to front and rear elevations, dormer roof extension to side elevation, and hip to gable roof extension to rear annexe extension and associated works

    Granted Householder Extension Loft or dormer 18 docs
    Domestic

  • 40 Heol-Y-Deri Rhiwbina Cardiff CF14 6HH

    21/00993/MNR Submitted 20 Apr 2021 100 yards away

    PROPOSED DEMOLITION OF EXISTING BUNGALOW AND CONSTRUCTION OF DETACHED DWELLING WITH PARKING AND AMENITY

    Granted Full applications New dwelling Demolition 17 docs
    Domestic

  • 40 Heol-Y-Deri Rhiwbina Cardiff CF14 6HH

    22/00224/DCH Submitted 3 Feb 2022 100 yards away

    PART SINGLE AND PART DOUBLE STOREY EXTENSION INCLUDING DORMER EXTENSION AND EXTERNAL ALTERATIONS

    Granted Householder Extension Loft or dormer 11 docs
    Domestic

In Cardiff

  • 26/02112/HSE Awaiting decision

    7 Penydarren Drive Whitchurch Cardiff CF14 2TT

    Proposed Single Storey Side/Rear Extension with Garage Conversion

    Received 7 Oct, published by the council 9 Oct 2026 Householder
  • 26/02113/HSE Awaiting decision

    78 Mill Road Lisvane Cardiff CF14 0UG

    PROPOSED FIRST FLOOR EXTENSION AT SIDE OF HOUSE

    Received 7 Oct, published by the council 9 Oct 2026 Householder
  • 26/01702/HSE Granted

    45 Gwern Rhuddi Road Cyncoed Cardiff CF23 6PS

    Two storey and single storey rear extensions (development similar to that as approved under 25/00533/HSE with additional first floor part).

    Received 10 Aug, published by the council 24 Aug 2026 Householder
  • 26/02104/HSE Awaiting decision

    15 Brynteg Rhiwbina Cardiff CF14 6TS

    Proposed single storey rear extension to the existing semi-detached dwelling including minor internal and external modifications

    Received 6 Oct, published by the council 9 Oct 2026 Householder
  • 26/02102/HSE Awaiting decision

    49 Kimberley Road Penylan Cardiff CF23 5DL

    Proposed ground floor rear side return extension

    Received 6 Oct, published by the council 9 Oct 2026 Householder