3 Gainsborough Drive Maidenhead SL6 3YN

1. 21 Jun 2021

   Received by Windsor and Maidenhead

2. 16 Aug 2021

   Decision issued: Permitted Development

3. 16 Aug 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 16 August 2021, 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.

• 2 Gainsborough Drive Maidenhead SL6 3YN

  20/00659/FULL Submitted 12 Mar 2020 50 yards away

  First floor front extension, single storey side extension, single storey rear extension, new mono pitched roof over the existing garage and alterations to fenestration.

  Granted Full applications Extension Windows or glazing 10 docs
  Small domestic

• 32 Thurlby Way Maidenhead SL6 3YZ

  22/03329/FULL Submitted 14 Dec 2022 100 yards away

  Two storey side/rear extension, first floor side extension and alterations to single storey roof on front elevation.

  Granted Full applications Extension 14 docs
  Small domestic

• 63 Cadwell Drive Maidenhead SL6 3YS

  25/02145/FULL Submitted 20 Aug 2025 100 yards away

  Single storey side/rear extension, first floor side/rear extension, new pitched roofs to single storey elements and alterations to fenestration.

  Refused Full applications Extension Windows or glazing 14 docs
  Small domestic

• 18 Kelsey Close Maidenhead SL6 3YW

  22/02185/FULL Submitted 10 Aug 2022 100 yards away

  Part single, part two storey side extension.

  Granted Full applications Extension 11 docs

• 46 Thurlby Way Maidenhead SL6 3YZ

  26/00315/CPD Submitted 5 Feb 2026 150 yards away

  Certificate of lawfulness to determine whether the proposed garage conversion , alterations to roof of the single storey side element and alterations to fenestration are lawful.

  Granted Lawful development Windows or glazing 7 docs
  Small domestic

• 2 Dunholme End Maidenhead SL6 3YP

  21/01900/FULL Submitted 18 Jun 2021 150 yards away

  Part garage conversion, first floor front extension, two storey side extension, single storey rear extension and alterations to fenestration, following demolition of the existing single storey rear element.

  Granted Full applications Extension Demolition +1 6 docs
  Small domestic

• 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