May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

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

• 26/01948/FULL Awaiting decision

  May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

  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.

  Submitted 7 Aug 2026 Full applications
• 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
• 25/02166/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

1. 17 Nov 2025

   Received by Windsor and Maidenhead

2. 27 Nov 2025

   Decision issued: Permitted Development

3. 11 Aug 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 27 November 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 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

  25/03367/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

• May Cottage Grubwood Lane Cookham Maidenhead SL6 9UD

  26/01948/FULL Submitted 7 Aug 2026 50 yards away

  70% 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 14 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

• 26/02222/CPD Refused

  52 Audley Way Ascot SL5 8EF

  Certificate of lawfulness to determine whether the proposed single storey rear extension following the removal of the existing conservatory is lawful.

  Received 8 Sep, published by the council 24 Sep 2026 Lawful development
• 26/01954/CPD Withdrawn

  Mulberry House Waltham Road Maidenhead SL6 3NH

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

  Received 7 Aug, published by the council 16 Aug 2026 Lawful development
• 26/01856/CLU Granted

  Apple Tree Cottage And Land Adjacent To Apple Tree Cottage Paley Street Maidenhead

  Certificate of lawfulness to determine whether the existing use of the land as a residential garden incidental to the main dwelling is lawful

  Received 28 Jul, published by the council 24 Aug 2026 Lawful development
• 26/02022/CPD Refused

  14 Church View White Waltham Maidenhead SL6 3JQ

  Certificate of lawfulness to determine whether the proposed 1no. rear dormer and alterations to fenestration are lawful

  Received 17 Aug, published by the council 2 Sep 2026 Lawful development
• 26/01862/CLU Granted

  Holyport Pre School Holyport Youth Club Moneyrow Green Holyport Maidenhead SL6 2NA

  Certificate of lawfulness to determine whether the existing use of the site as a pre-school is lawful.

  Received 29 Jul, published by the council 4 Aug 2026 Lawful development