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Planning application

6 Lon Penllyn Rhiwbina Cardiff CF14 6BZ

Refused Cardiff 26/00408/HSE Householder Planning Permission

Works: Extension Loft or dormer Domestic

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

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Side hip to gable roof extension with two pitched roof front dormers. Two storey rear extension with rear dormer extension.

As published by the council, reference 26/00408/HSE

Application record

Reference
26/00408/HSE
Type
Householder Planning Permission
Status
Decided
Decision
Refused As published: Refuse
Received
26 Feb 2026
Validated
26 Feb 2026
Decided
23 Apr 2026
Ward
RHIWBINA
Decision by
Delegated to Group Leader
Postcode
CF14 6BZ

Site history

Applications at this address on the Cardiff register

This site has had 2 applications since 2026: 1 approved, 1 refused.

  • 26/01133/HSE Granted

    6 Lon Penllyn Rhiwbina Cardiff CF14 6BZ

    Retention of Hip to gable roof with rear flat roof dormer and single storey extension

    Decided 30 Jul 2026 Householder

Timeline

Dates from the published record

  1. 26 Feb 2026

    Received by Cardiff

  2. 23 Apr 2026

    Decision issued: Refuse

  3. 22 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Brennan Architectural Design Agent, an architecture practice registered in Aberdare

Active · incorporated 2023 · Aberdare

60 applications on PlanIndex · across 5 councils · 79% granted

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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.

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What this refusal means

Cardiff refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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

  • 6 Lon Penllyn Rhiwbina Cardiff CF14 6BZ

    26/01133/HSE Submitted 2 Jun 2026 0m away

    Retention of Hip to gable roof with rear flat roof dormer and single storey extension

    Granted Householder Extension Loft or dormer 8 docs
    Small domestic

  • 1 Lon Penllyn Rhiwbina Cardiff CF14 6BZ

    24/02268/FUL Submitted 23 Sep 2024 51m away

    Dormer loft conversion, hip to raised ridge gable roof and alterations to driveway and access.

    Granted Full applications Loft or dormer 6 docs

  • 20 Ty'n-y-cae Grove Rhiwbina Cardiff CF14 6DB

    23/00363/CLD Submitted 15 Feb 2023 101m away

    Single storey rear and side extension

    Granted Lawful development Extension 6 docs
    Small domestic

  • Apple Tree Cottage Heol Ty'n-y-cae Rhiwbina Cardiff CF14 6DH

    25/01430/FUL Submitted 19 Jun 2025 105m away

    Hip to gable and front dormer roof extensions.

    Refused Full applications Extension Loft or dormer 8 docs

  • Part Of Land At 93 Heol Ty'n-y-cae Rhiwbina Cardiff CF14 6DH

    24/02437/VAR Submitted 14 Oct 2024 111m away

    Proposed Amendment to Planning Permission 23/00805/HSE -Erection of single-storey rear extension, hip-to-gable loft conversion and rear dormer roof extension. Alteration of existing extension roof pitch. (Approved 03.08.2023 - 23/00805/HSE) and 23/02917/NMA - Dormer Construction and Window adjustments. (Approved 13.02.24) Variation of Conditions 2 (Approved Plans), 5 and 6 (Windows Adjacent to 95 Tyn-y-parc Road) of 23/02917/NMA which amended Permission 23/00805/HSE to amend the approved scheme as follows: 1) Amend plans to reflect as built scheme and structure; 2) Amend condition 5 as 1.7m non-opening widow is not feasible; 3) Amend Condition 6 as 1.7m non-opening window is not feasible; 4) Remove reference to non-opening height but include requirement for 100mm restrictor in Conditions 5 and 6

    Granted Amendments Extension Loft or dormer +1 7 docs
    Small domestic

  • 10 Clas Ty'N-Y-Cae Rhiwbina Cardiff CF14 6DA

    21/01437/DCH Submitted 7 Jun 2021 126m away

    DEMOLITION OF EXISTING REAR EXTENSION AND CONSTRUCTION OF NEW REAR SINGLE STOREY EXTENSION

    Granted Lawful development Extension Demolition 6 docs
    Small domestic

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