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Planning application

20 Windermere Avenue, London, NW6 6LN

Granted Brent 26/1071 Householder

Works: Extension Loft or dormer Demolition Small domestic

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

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

Proposal

Proposed demolition of rear conservatory, erection of single-storey side extension, single-storey rear extension, rear dormer extension, and installation of 2x rooflights to rear outrigger and 1x rear rooflight to dwellinghouse

As published by the council, reference 26/1071

Application record

Reference
26/1071
Type
Householder
Status
Decided
Decision
Permission Granted
Received
27 Apr 2026
Validated
5 May 2026
Decided
30 Jun 2026
Ward
Queens Park
Decision by
Delegated Team Manager
Postcode
NW6 6LN

Timeline

Dates from the published record

  1. 27 Apr 2026

    Received by Brent

  2. 5 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 30 Jun 2026

    Decision issued: Permission Granted

  4. 25 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Maggie Toy: Architectural Design Agent, an architecture practice

29 applications on PlanIndex · 72% granted

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Documents

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

14 documents on file for this application

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What this grant of permission means

Brent granted permission on 30 June 2026, subject to any conditions on the decision notice. Work must normally begin within three 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

  • 6 Windermere Avenue, London, NW6 6LN

    22/0978 Submitted 15 Mar 2022 0m away

    Proposed single storey side infill and rear extensions to dwellinghouse

    Granted Householder Extension 6 docs
    Small domestic

  • 32 Windermere Avenue, London, NW6 6LN

    21/2586 Submitted 7 Jul 2021 0m away

    Certificate of lawfulness for proposed single storey outbuilding/garden room at rear of dwellinghouse.

    Granted Lawful development 4 docs
    Small domestic

  • 32 Windermere Avenue, London, NW6 6LN

    21/2585 Submitted 7 Jul 2021 0m away

    Non-material amendment (alterations to proposed fenestration to rear elevation) allowed under planning appeal ref: APP/T5150/D/20/3251302 dated 01/10/2020 of Householder reference 20/0556 for Proposed demolition of existing side extension and erection of a single storey side infill extension to dwellinghouse.

    Granted Amendments Extension Demolition +1 5 docs
    Small domestic

  • 12 Windermere Avenue, London, NW6 6LN

    21/0564 Submitted 17 Feb 2021 0m away

    Certificate of lawfulness for existing single storey outbuilding to dwellinghouse

    Withdrawn Lawful development 2 docs
    Small domestic

  • 16 Windermere Avenue, London, NW6 6LN

    25/2665 Submitted 18 Sep 2025 0m away

    Single storey rear infill extension, new front rooflight and alterations to openings.

    Granted Householder Extension Loft or dormer 8 docs
    Small domestic

  • 12 Windermere Avenue, London, NW6 6LN

    21/1469 Submitted 21 Apr 2021 0m away

    Certificate of lawfulness for proposed erection of single storey rear outbuilding to dwellinghouse.

    Granted Lawful development 5 docs
    Small domestic

In Brent

  • 26/2202 Awaiting decision

    55 Wembley Park Drive, Wembley, HA9 8HE

    Proposed demolition of garage and erection of single-storey rear extension, two-storey side extension, hip to gable roof-end, 2x side dormer extension and 2x rear dormer extension, 2x front rooflight and raised patio to dwellinghouse.

    1 Sep 2026 Householder
  • 26/1190 Refused

    244 Willesden Lane, Willesden, London, NW2 5RE

    Demolition of conservatory and shed, and erection of a single-storey side infill and rear extension, installation of a door to the side elevation and erection of a new masonry side boundary wall to the dwellinghouse.

    12 May 2026 Householder
  • 26/0867 Refused

    14 Mount Pleasant Road, London, NW10 3EL

    Proposed erection of boundary wall, a bin store, pedestrian and vehicular access gates, associated hard and soft landscaping to front garden (revised description)

    2 Apr 2026 Householder
  • 26/0420 Granted

    1 Hopefield Avenue, London, NW6 6LJ

    Proposed installation of powered step lift and new wall to front of dwellinghouse

    19 Feb 2026 Householder
  • 26/0276 Granted

    40 Esmond Road, London, NW6 7HE

    Proposed demolition of existing rear outbuilding, erection of single storey rear outbuilding with air source heat pump, and landscaping to rear garden to the dwellinghouse

    4 Feb 2026 Householder