12 Clewer Park Windsor SL4 5HA

1. 12 Dec 2019

   Received by Windsor and Maidenhead

2. 18 Dec 2019

   Validated

   Checked as complete and ready for consideration.

3. 31 Jan 2020

   Decision issued: Permitted Development

4. 12 Oct 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 31 January 2020, 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.

• 9 Clewer Park Windsor SL4 5HA

  21/00051/FULL Submitted 8 Jan 2021 50 yards away

  Single storey extension to rear of garage and alteration to existing garage roof.

  Granted Full applications Extension 21 docs
  Small domestic

• 29 Mill Lane Windsor SL4 5JG

  20/02073/TCA Submitted 13 Aug 2020 50 yards away

  T1 - Oak - Crown reduction by 1 - 2 metres on rear westerly limb growing towards the garden where decay is present, the remaining canopy to be reduced by drop crotching of 1 metre. Remove major dead wood, T2 - Yew - Crown reduction by 1 metre all over.

  Granted Trees 13 docs

• 35 Mill Lane Windsor SL4 5JG

  26/01371/FULL Submitted 3 Jun 2026 50 yards away

  Single storey rear extension and alterations to rear door following demolition of existing single storey rear element.

  Refused Full applications Extension Demolition 21 docs
  Small domestic

• 35 Mill Lane Windsor SL4 5JG

  26/01656/FULL Submitted 7 Jul 2026 50 yards away

  Part single part two storey side/rear extension, loft conversion and alterations to fenestration following the demolition of the existing elements.

  Withdrawn Full applications Extension Loft or dormer +2 22 docs

• 25 Mill Lane Windsor SL4 5JG

  22/00485/FULL Submitted 24 Feb 2022 50 yards away

  Part single/part two storey rear extension and alterations to fenestration following demolition of existing element.

  Granted Full applications Extension Demolition +1 24 docs

• 18 Clewer Park Windsor SL4 5HA

  21/03150/FULL Submitted 22 Oct 2021 50 yards away

  New front porch canopy, part single, part first floor, part two storey side/rear extension with rear Juliet balcony and alterations to fenestration.

  Granted Full applications Extension Windows or glazing 9 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