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Planning application

66 Windermere Avenue Cyncoed Cardiff CF23 5PS

Awaiting decision Cardiff 26/01833/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

Proposed single-storey side and rear extension. Hip-to-gable roof conversion and conversion of the roof space, including a rear dormer. Associated internal alterations and a new patio to the rear garden.

As published by the council, reference 26/01833/HSE

Application record

Reference
26/01833/HSE
Type
Householder Planning Permission
Status
Registered
Received
28 Aug 2026
Validated
28 Aug 2026
Ward
CYNCOED
Postcode
CF23 5PS

Timeline

Dates from the published record

  1. 28 Aug 2026

    Received by Cardiff

  2. 4 Sep 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 23 October 2026, 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.

Who's behind it

Company information only, from the register and Companies House

BlackBrick Studio Agent

11 applications on PlanIndex · across 2 councils

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Documents

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

21 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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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 59 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 0.3 miles

  • 56 Windermere Avenue Roath Park Cardiff CF23 5PS

    20/02093/DCH Submitted 14 Oct 2020 50 yards away

    HIP TO GABLE EXTENSION AND REAR DORMER EXTENSION

    Granted Lawful development Extension Loft or dormer 4 docs

  • 67 Windermere Avenue Cyncoed Cardiff CF23 5PS

    26/01131/HSE Submitted 2 Jun 2026 100 yards away

    Rear dormer and hip to gable roof.

    Refused Householder Loft or dormer 10 docs
    Domestic

  • 87 LAKE ROAD WEST, ROATH PARK, CARDIFF, CF23 5PJ

    10/00321/E Submitted 25 Feb 2010 100 yards away

    SINGLE STOREY EXTENSION TO REAR

    Granted Householder Extension 4 docs
    Small domestic

  • 113 Lake Road West Cyncoed Cardiff CF23 5PJ

    22/02900/HSE Submitted 2 Dec 2022 150 yards away

    Ground floor rear extension and conversion of roof space including construction of dormer roof extensions

    Granted Householder Extension Loft or dormer 13 docs
    Domestic

  • 36 Windermere Avenue Cyncoed Cardiff CF23 5PR

    26/01688/CLPUD Submitted 7 Aug 2026 150 yards away

    Hip-to-gable roof extension, rear dormer roof extension and addition of front rooflights

    Granted Lawful development Extension Loft or dormer 6 docs

  • 44 Heath Mead Heath Cardiff CF14 3PJ

    22/02303/HSE Submitted 3 Oct 2022 150 yards away

    Demolition of Existing Single Storey Side/Rear Extension and the Erection of a Single Storey Side and Rear Extension. Insertion of Proposed Rooflights within the Front Elevation.

    Granted Householder Extension Loft or dormer +1 11 docs
    Small 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