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Planning application

Dry Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

Granted Windsor and Maidenhead 21/03638/FULL Full

Works: Extension Loft or dormer Demolition

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

Proposal

Two storey extension and x2 dormers to south east elevation following demolition of existing element.

As published by the council, reference 21/03638/FULL

Application record

Reference
21/03638/FULL
Type
Full
Status
Decided
Decision
Application Permitted
Received
13 Dec 2021
Validated
13 Dec 2021
Decided
7 Feb 2022
Ward
Bisham And Cookham
Parish
Bisham Parish
Decision by
Delegated
Postcode
SL6 9UD

Timeline

Dates from the published record

  1. 13 Dec 2021

    Received by Windsor and Maidenhead

  2. 7 Feb 2022

    Decision issued: Application Permitted

  3. 16 Aug 2026

    Added to PlanIndex

Documents

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

12 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.

Trade members open them from here.

Open the documents

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

  • May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

    26/01948/FULL Submitted 7 Aug 2026 79m away

    71% historically approved · decision due ~2 Oct

    Relocation of the front entrance door, replacement front canopy with 1no. dormer above, single storey rear extension, single storey front/side extension with new steps, 1no. additional side dormer, 1no. rear dormer and alterations to fenestration and external finish following demolition of existing elements.

    Awaiting decision Full applications Extension Loft or dormer +2 13 docs
    Small domestic

  • May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

    26/01042/CPD Submitted 28 Apr 2026 81m away

    Certificate of lawfulness to determine whether the proposed 4no. outbuildings incidental to the main dwelling and 1no. pool and hot tub following demolition of existing outbuildings are lawful.

    Granted Lawful development Demolition 9 docs
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  • May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

    25/03029/CPD Submitted 17 Nov 2025 81m away

    Certificate of lawfulness to determine whether the proposed single storey side extension, single storey rear extension and insertion of 3 no. rooflight windows are lawful.

    Granted Lawful development Extension Loft or dormer +1 8 docs
    Small domestic

  • May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

    25/03367/CPD Submitted 19 Dec 2025 81m away

    Certificate of lawfulness to determine whether the proposed single storey rear extension with habitable accommodation in the roofspace is lawful.

    Granted Lawful development Extension 7 docs
    Small domestic

  • May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

    25/02166/CPD Submitted 26 Aug 2025 81m away

    Certificate of lawfulness to determine whether the proposed single storey rear extension, single storey side extension and 4no. rooflights are lawful.

    Refused Lawful development Extension Loft or dormer 11 docs
    Small domestic

  • Holm Oak Grubwood Lane Cookham Maidenhead SL6 9UB

    22/00773/FULL Submitted 22 Mar 2022 138m away

    Renewal of permission 19/00980/FULL for a part two storey, part single storey side/rear extension, first floor rear extension, basement and loft conversion with front and rear dormers and alterations to fenestration.

    Granted Full applications Extension Loft or dormer +1 9 docs
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In Windsor and Maidenhead

  • 26/01628/FULL Granted

    25 Bannard Road Maidenhead SL6 4NP

    Single storey rear extension following the demolition of the existing conservatory.

    3 Jul 2026 Full applications
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    4 Jun 2026 Full applications
  • 26/01674/FULL Granted

    50 Welley Road Wraysbury Staines TW19 5DJ

    Detached annexe to be used ancillary to the main dwelling.

    9 Jul 2026 Full applications
  • 26/01312/FULL Refused

    16 Whyteladyes Lane Cookham Maidenhead SL6 9NA

    Hip to gable, 1no. front dormer, 1no. rear dormer and alterations to fenestration and relocation of PV panels.

    27 May 2026 Full applications
  • 26/01379/FULL Granted

    Lotus Cottage Holyport Street Holyport Maidenhead SL6 2JR

    Part single part two storey part first floor rear/side extension and alterations to fenestration.

    4 Jun 2026 Full applications