Skip to content
PlanIndex Get alerts
Menu

Planning application

23/00037/FULL

Ashton Alleyns Lane Cookham Maidenhead SL6 9AE

Granted Windsor and Maidenhead Full

Proposal

Single storey side extension, garage conversion, alterations to fenestration and relocation of existing gate

As published by the council, reference 23/00037/FULL

Timeline

Dates from the published record

  1. 9 Jan 2023

    Received by Windsor and Maidenhead

  2. 3 Mar 2023

    Decision issued: Application Permitted

  3. 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

  • 22/02450/TCA Granted

    Ashton Alleyns Lane Cookham Maidenhead SL6 9AE

    T1 - Mulberry tree - reduce height by 1m and spread by 1.5m, T2 - Holly tree - reduce height by 2m, cut back low branches by 1m, thin out by 20%, T3 - Smoke Bush - reduce by 2m back to previous pruning points.

    6 Sep 2022 24m away Trees
  • 22/02802/TCA Granted

    March Cottage Alleyns Lane Cookham Maidenhead SL6 9AE

    Callery Pear Tree - prune to give 0.5m clearance to overhead wires.

    17 Oct 2022 32m away Trees
  • 25/02082/TCA Awaiting decision

    Primrose Cottage Dean Lane, Reddaways Cottage And Cromwell Cottage Alleyns Lane Cookham Maidenhead

    T1 - Leylandii, T2 - Birch (Primrose Cottage), T3 - Leylandii, T4 - Conifer, T5 - Sycamore, T6 - Crab apple (Cromwell Cottage), T7 - Cherry, T8 - Portuguese Laurel, T9 - Birch, T10 - Rowan (Reddaways) - cut back to boundary line.

    13 Aug 2025 56m away Trees
  • 22/03429/TCA Granted

    April Dene Warners Hill Cookham Maidenhead SL6 9NU

    T1 - Chamaecyparis lawsoniana - fell.

    28 Dec 2022 117m away Trees
  • 23/00218/FULL Refused

    Hamilton Lodge Dean Lane Cookham Maidenhead SL6 9AF

    x1 new outbuilding.

    26 Jan 2023 139m away Full applications
  • 26/01763/CPU Awaiting decision

    Land At The Junction of Warners Hill And Dean Lane Cookham Maidenhead

    Certificate of lawfulness to determine whether the proposed use of the land as an orchard with mobile poultry run and polytunnel is lawful.

    17 Jul 2026 160m away Lawful development

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