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Planning application

21/01193/FULL

21 St Leonards Avenue Windsor SL4 1HX

Granted Windsor and Maidenhead Full

Proposal

x2 dormer windows to rear elevation.

As published by the council, reference 21/01193/FULL

Timeline

Dates from the published record

  1. 16 Apr 2021

    Received by Windsor and Maidenhead

  2. 19 Apr 2021

    Validated

    Checked as complete and ready for consideration.

  3. 22 Jul 2021

    Decision issued: Application Permitted

  4. 27 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 22/03024/TCA Granted

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    11 Nov 2022 54m away Trees
  • 26/01516/FULL Awaiting decision

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  • 23/00499/TCA Granted

    2 St Leonards Avenue Windsor SL4 1HX

    T1 - Lime. Re-pollard by reducing regrowth by 1.75m

    24 Feb 2023 73m away Trees
  • 22/03241/TCA Granted

    2 St Leonards Avenue Windsor SL4 1HX

    (T1) - Hawthorn - Reduce height by 1.5m and spread by 1m, leaving a final height of 4m and spread of 3m. (T2) - Apple - Crown reduce by 1m, leaving a final height of 4m and spread of 3m. (T3) - Apple - Crown reduce by 0.5m, leaving a final height of 3m and spread of 1m.

    2 Dec 2022 75m away Trees
  • 26/00418/FULL Granted

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    Removal of timber fence above brick boundary wall and raising brickwork to same height

    16 Feb 2026 79m away Full applications
  • 26/01675/FULL Awaiting decision

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    Increase in height of the existing side boundary brick wall following the removal of the existing timber fencing and a reduction in height and new railings to the existing front/side boundary wall.

    9 Jul 2026 79m away Full applications

In Windsor and Maidenhead

  • 26/00962/FULL Granted

    Bonnicut Barn Bonnicut Court 14 High Street Sunningdale Ascot SL5 0NB

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    20 Apr 2026 Full applications
  • 26/01310/FULL Granted

    6 Gilman Crescent Windsor SL4 4YN

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    22 May 2026 Full applications
  • 25/03313/FULL Refused

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    Erection of a crematorium with ceremony hall and memorial arboretum, associated use of land, PV array, vehicular access, parking, landscaping, pavement and road widening along Long Lane.

    15 Dec 2025 Full applications
  • 26/01387/FULL Granted

    7 Elm Road Windsor SL4 3NB

    Single storey rear/side extension

    5 Jun 2026 Full applications
  • 26/00877/FULL Granted

    45 Queens Close Old Windsor Windsor SL4 2PR

    Two storey front/side extension.

    7 Apr 2026 Full applications