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Planning application

May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

Awaiting decision Windsor and Maidenhead 26/01948/FULL Full

Works: Extension Loft or dormer Demolition Windows or glazing Small domestic

Read from the description, not a valuation. How we read the register

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

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.

As published by the council, reference 26/01948/FULL

Application record

Reference
26/01948/FULL
Type
Full
Status
Awaiting decision
Received
7 Aug 2026
Validated
7 Aug 2026
Ward
Bisham And Cookham
Parish
Bisham Parish
Postcode
SL6 9UD

Site history

Applications at this address on the Windsor and Maidenhead register

This site has had 5 applications since 2025: 3 approved, 1 refused.

  • 26/01042/CPD Granted

    May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

    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.

    Decided 18 Jun 2026 Lawful development
  • 25/03367/CPD Granted

    May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

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

    Decided 6 Feb 2026 Lawful development
  • 25/03029/CPD Granted

    May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

    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.

    Decided 27 Nov 2025 Lawful development
  • 25/02166/CPD Refused

    May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

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

    Decided 17 Oct 2025 Lawful development

Timeline

Dates from the published record

  1. 7 Aug 2026

    Received by Windsor and Maidenhead

  2. 16 Aug 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 2 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

    Windsor and Maidenhead took a median of 56 days over the applications it decided in the last year.

Documents

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

14 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.

Watch members (£5 a month) open the document list from here.

Open the documents

What happens while it is decided

This application is with Windsor and Maidenhead for determination, against a statutory target of eight weeks. Over the last year Windsor and Maidenhead decided full applications in a median of 64 days. More in our guide to how long planning decisions take.

About full applications

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

    26/01042/CPD Submitted 28 Apr 2026 50 yards 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
    Domestic

  • May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

    25/03029/CPD Submitted 17 Nov 2025 50 yards 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 50 yards 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 50 yards 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

  • Woods End Grubwood Lane Cookham Maidenhead SL6 9UD

    23/01769/CPD Submitted 20 Jul 2023 50 yards away

    Certificate of lawfulness to determine whether the proposed replacement side dormer is lawful.

    Refused Lawful development Loft or dormer 13 docs

  • Fernie Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

    22/02843/FULL Submitted 24 Oct 2022 100 yards away

    Garage conversion, part two storey, part first floor rear extension and alterations to fenestration.

    Granted Full applications Extension Windows or glazing 13 docs

In Windsor and Maidenhead

  • 26/02029/FULL Granted

    5 Kimber Close Windsor SL4 4BJ

    Single storey rear extension.

    Received 17 Aug, published by the council 27 Aug 2026 Full applications
  • 26/01955/FULL Granted

    2 Holmlea Road Datchet Slough SL3 9HQ

    Change of use from a dwellinghouse (Use Class C3) to a children's home (Use Class C2) for up to three children, together with conversion of the garage to an office with an en-suite facilities and alterations to fenestration.

    Received 7 Aug, published by the council 27 Aug 2026 Full applications
  • 26/01121/FULL Granted

    Zain House 15 Wilton Crescent Windsor SL4 4YJ

    Single storey side/front extension, first floor extension over existing side element with 1no. Juliet balcony and 1no. Juliet balcony to existing rear elevation.

    Received 6 May, published by the council 11 Aug 2026 Full applications
  • 26/01977/FULL Granted

    9 St Marks Place Windsor SL4 3BG

    Garage conversion and alterations to fenestration.

    Received 11 Aug, published by the council 24 Aug 2026 Full applications
  • 26/01804/FULL Granted

    16 Devereux Road Windsor SL4 1JJ

    Installation of air conditioning compressor unit to the first floor side elevation.

    Received 23 Jul, published by the council 24 Aug 2026 Full applications