99 Ruddlesway Windsor SL4 5SH

1. 26 May 2026

   Received by Windsor and Maidenhead

2. 15 Jul 2026

   Decision issued: Permitted Development

3. 25 Jul 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 15 July 2026, 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.

• 32 Birch Grove Windsor SL4 5RT

  21/01433/CPD Submitted 10 May 2021 50 yards away

  Certificate of lawfulness to determine whether the proposed single storey rear extension with pitched roof is lawful.

  Granted Lawful development Extension 8 docs
  Small domestic

• 93 Ruddlesway Windsor SL4 5SH

  19/03026/FULL Submitted 1 Nov 2019 50 yards away

  Single storey rear extension

  Granted Full applications Extension 12 docs
  Small domestic

• 91 Ruddlesway Windsor SL4 5SH

  20/00706/FULL Submitted 18 Mar 2020 50 yards away

  Single storey front and rear extension and 2 No. front and rear rooflights

  Granted Full applications Extension Loft or dormer 11 docs
  Small domestic

• 44 Ruddlesway Windsor SL4 5SW

  23/01845/PDXL Submitted 28 Jul 2023 50 yards away

  Single storey rear extension no greater than 4.00m in depth, 3.42m high with an eaves height of 2.40m.

  Granted Prior approval Extension 8 docs
  Small domestic

• 111 Ruddlesway Windsor SL4 5SJ

  20/01083/FULL Submitted 13 May 2020 100 yards away

  Rear conservatory.

  Granted Full applications Extension 10 docs

• 113 Ruddlesway Windsor SL4 5SJ

  21/01088/FULL Submitted 6 Apr 2021 100 yards away

  Single storey rear extension.

  Granted Full applications Extension 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• 26/01954/CPD Withdrawn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