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Planning application

1 Windermere Avenue, Wembley, HA9 8SH

Granted Brent 25/3293 Certificate of Lawfulness - Proposed

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 three years of the decision or the permission lapses.

Proposal

Certificate of lawfulness for proposed hip to gable extension, rear dormer extension, installation of 2x front rooflights, removal of chimney stack and single storey outbuilding in the rear garden of the dwellinghouse.

As published by the council, reference 25/3293

Application record

Reference
25/3293
Type
Certificate of Lawfulness - Proposed
Status
Decided
Decision
Certificate of Lawfulness - Granted
Received
25 Nov 2025
Validated
4 Dec 2025
Decided
6 Jan 2026
Ward
Preston
Decision by
Delegated Team Manager
Postcode
HA9 8SH

Site history

Applications at this address on the Brent register

This site has had 6 applications since 2025: 3 approved, 2 refused.

  • 26/1861 Awaiting decision

    1 Windermere Avenue, Wembley, HA9 8SH

    Proposed alteration to front porch, erection of single-storey front extension, two-storey side ex...

    Submitted 21 Jul 2026
  • 26/1028 Granted

    1 Windermere Avenue, Wembley, HA9 8SH

    Proposed demolition of garage and erection of single-storey side to rear extension to dwellinghouse (new description)

    Decided 20 Jul 2026 Householder
  • 26/0625 Granted

    1 Windermere Avenue, Wembley, HA9 8SH

    Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3m Eaves height - 3m

    Decided 22 Apr 2026 Prior approval
  • 26/0565 Refused

    1 Windermere Avenue, Wembley, HA9 8SH

    Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6.00m Maximum height - 3.00m Eaves height - 3.00m

    Decided 11 Mar 2026 Prior approval
  • 26/0197 Refused

    1 Windermere Avenue, Wembley, HA9 8SH

    Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3m Eaves height - 3m

    Decided 16 Feb 2026 Prior approval

Timeline

Dates from the published record

  1. 25 Nov 2025

    Received by Brent

  2. 4 Dec 2025

    Validated

    Checked as complete and ready for consideration.

  3. 6 Jan 2026

    Decision issued: Certificate of Lawfulness - Granted

  4. 11 Aug 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Agent on file, an architecture practice registered in Spilsby

17 applications on PlanIndex · across 7 councils · 63% granted

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Documents

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

4 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

Brent granted permission on 6 January 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 lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 1 Windermere Avenue, Wembley, HA9 8SH

    26/1861 Submitted 21 Jul 2026 0m away

    79% historically approved · decision due ~22 Sep

    Proposed alteration to front porch, erection of single-storey front extension, two-storey side ex...

    Awaiting decision Extension
    Small domestic

  • 1 Windermere Avenue, Wembley, HA9 8SH

    26/0625 Submitted 12 Mar 2026 0m away

    Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3m Eaves height - 3m

    Granted Prior approval Extension 3 docs
    Small domestic

  • 1 Windermere Avenue, Wembley, HA9 8SH

    26/0565 Submitted 5 Mar 2026 0m away

    Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6.00m Maximum height - 3.00m Eaves height - 3.00m

    Refused Prior approval Extension 4 docs
    Small domestic

  • 1 Windermere Avenue, Wembley, HA9 8SH

    26/0197 Submitted 27 Jan 2026 0m away

    Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3m Eaves height - 3m

    Refused Prior approval Extension 4 docs
    Small domestic

  • 1 Windermere Avenue, Wembley, HA9 8SH

    26/1028 Submitted 24 Apr 2026 0m away

    Proposed demolition of garage and erection of single-storey side to rear extension to dwellinghouse (new description)

    Granted Householder Extension Demolition 5 docs
    Small domestic

  • 18 Windermere Avenue, Wembley, HA9 8SF

    26/0095 Submitted 15 Jan 2026 64m away

    Demolition of front porch and garage and erection of front porch extension, single storey side and rear extension, gable end roof extension, rear dormer window, 2 front rooflights, 1 new outbuildings, solar panels to roof of single storey rear extension and removal of chimneys to dwellinghouse

    Granted Householder Extension Loft or dormer +2 7 docs
    Small domestic

In Brent

  • 26/0783 Granted

    3 Hamilton Road, London, NW10 1NU

    Certificate of lawfulness for existing single-storey rear extension to dwellinghouse

    26 Mar 2026 Lawful development
  • 26/1946 Awaiting decision

    120 Gladstone Park Gardens, London, NW2 6RL

    Certificate of lawfulness for proposed rear dormer extension with Juliet balcony, hip to gable roof extension, installation of 1x window to side elevation and 2x front rooflights to dwellinghouse.

    30 Jul 2026 Lawful development
  • 26/1208 Granted

    50 Ballogie Avenue, London, NW10 1TA

    Certificate of lawfulness for proposed rear dormer extension, hip to gable roof extension, alteration to fenestration and installation of rooflights to the dwellinghouse

    13 May 2026 Lawful development
  • 26/1015 Refused

    5 Midholm, Wembley, HA9 9LJ

    Certificate of lawfulness for proposed installation of solar panels to the side and rear roofslope of the dwellinghouse.

    23 Apr 2026 Lawful development
  • 26/1176 Refused

    47 Barn Rise, Wembley, HA9 9NH

    Certificate of lawfulness for proposed single storey outbuilding in rear garden of the dwellinghouse.

    11 May 2026 Lawful development