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Planning application

22/03421/FULL

21 Summerleaze Road Maidenhead SL6 8EW

Granted Windsor and Maidenhead Full

Proposal

Part single part two storey rear/side extension, hip to gable to create accommodation within the roofspace, x1 rear dormer and alterations to fenestration following demolition of existing rear element.

As published by the council, reference 22/03421/FULL

Timeline

Dates from the published record

  1. 28 Dec 2022

    Received by Windsor and Maidenhead

  2. 3 Jan 2023

    Validated

    Checked as complete and ready for consideration.

  3. 23 Feb 2023

    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

  • 21/01765/CLD Granted

    45 Summerleaze Road Maidenhead SL6 8EW

    Certificate of lawfulness to determine whether the existing two storey rear extension is lawful.

    7 Jun 2021 124m away Lawful development
  • 19/03522/OUT Awaiting decision

    Summerleaze Gravel Pit 7 Summerleaze Road Maidenhead SL6 8SP

    Outline application for access and layout only to be considered at this stage with all other matters to be reserved for 160 new dwellings, altered access, including use of existing alternative haulage route, associated parking and landscaping following the demolition of the existing buildings and structures.

    17 Dec 2019 155m away Outline
  • 26/00246/FULL Refused

    50 Summerleaze Road Maidenhead SL6 8EN

    Change of use of gravel pit land to residential garden with raised ground levels, retaining wall, fencing, glass balustrade and landscaping. (Retrospective).

    29 Jan 2026 165m away Full applications
  • 26/01783/FULL Awaiting decision

    50 Summerleaze Road Maidenhead SL6 8EN

    Change of use of gravel pit land to residential garden with raised ground levels, retaining wall, fencing, glass balustrade and landscaping. (Retrospective).

    21 Jul 2026 167m away Full applications
  • 26/00946/TPO Granted

    Land At Ray Meadow Maidenhead

    (G1) Leyland cypress - crown reduce by 1.5m to provide clearance from the streetlamp of up to 1m. (008/2020/TPO).

    16 Apr 2026 216m away Trees
  • 26/00947/TPO Awaiting decision

    Land At Summerleaze Road Maidenhead

    (T2)(tag 2858) Willow - crown reduce lateral branches by up to 2.0m that are in contact with overhead services to provide clearance from overhead services up to 2m by targeting secondary points of pruning where possible; (G1) Mixed Broadleaf Species: Hawthorn - remove, Hazel - crown reduce lower branches by 2.0m that encroach over highway to provide statutory clearance of approximately 5.2m fgl (from ground level) and Sycamore- remove. (T5) Poplar - remove to approximately 1m from ground level; (T7) Field Maple - crown reduce lateral branches by 1.5m to provide clearance of up to 1.5 m from overhead service cables and crown reduce lower branches by 2.5m to maintain statutory clearance over of 5.2m. This action will target secondary branches by removal of up to 2.5m in length where possible to achieve statutory clearance. If primary branches need to be removed to achieve statutory clearance the size of wounds should not exceed 60mm in diameter; (T9) Willow - crown reduce stem with historic branch tear out wound to approximately 2m fgl; (2) Sycamore x 2 - remove; (T10) Ash - crown reduce low branches by pruning lower branches to maintain statutory clearance over highway of 5.2m, this action will target secondary branches of up to 2.5m in length where possible to achieve statutory clearance. If primary branches need to be removed to achieve statutory clearance the size of wounds should not exceed 60mm in diameter, & clearance of overhead service cables of up to 1.5m; (G2) Various Broadleaf Species - crown reduce branches and stems by 1.5m back from boundary fence, Willow - stem closest to fence to point of origin near dead stub to maintain as a smaller habitat pole and (T12)(tag 2859) Ash - crown reduce by 1.5m by targeting secondary points of pruning to clear overhead service cables by up to 1.5m. (008/2020/TPO).

    16 Apr 2026 254m away Trees

In Windsor and Maidenhead

  • 26/00962/FULL Granted

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

    2no. front dormers, part raising of the front elevation to form a parapet wall and terrace, 3no. front rooflights, 3no. rear dormers and alterations to fenestration. (Part Retrospective).

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

    6 Gilman Crescent Windsor SL4 4YN

    Single storey front/side extension, relocated front door, two storey rear extension, alterations to fenestration and hardstanding, new steps, 1 no. dropped kerb, following demolition of existing elements

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

    Land To The South of Lower Mount Farm Long Lane Cookham Maidenhead

    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