16 Coworth Close Sunningdale Ascot SL5 0NR

1. 28 Apr 2026

   Received by Windsor and Maidenhead

2. 16 Jul 2026

   Decision issued: Permitted Development

3. 25 Jul 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 16 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.

• 17 Coworth Close Sunningdale Ascot SL5 0NR

  21/00385/CPD Submitted 9 Feb 2021 50 yards away

  Certificate of lawfulness to determine whether the proposed x3 front rooflights and x1 rear dormer to facilitate a loft conversion is lawful.

  Granted Lawful development Loft or dormer 20 docs

• 32 Coworth Close Sunningdale Ascot SL5 0NR

  25/02110/FULL Submitted 18 Aug 2025 100 yards away

  Single storey front/side extension to the existing porch and alterations to fenestration following the removal of the existing mono pitched roof and existing elements.

  Granted Full applications Extension Windows or glazing 13 docs
  Small domestic

• 15 Churchfield Cottages Bedford Lane Sunningdale Ascot SL5 0NN

  22/00054/FULL Submitted 11 Jan 2022 150 yards away

  Part single/part two storey rear extension, 1x new rooflight and x1 Juliet balcony to front elevation.

  Granted Full applications Extension Loft or dormer 13 docs

• Woodland South of Coworth Park Copse Wood And East of Whitmore Lane Ascot

  22/03382/TPO Submitted 20 Dec 2022 150 yards away

  (T1) - Scots Pine - Crown reduce by 2-3m, leaving a final height of 18m and spread of 8m. Ivy removal. (069/2003/TPO and 001/1957/TPO)

  Granted Trees 10 docs

• Cherry Tree Cottage Bedford Lane Sunningdale Ascot SL5 0NP

  24/00358/FULL Submitted 9 Feb 2024 200 yards away

  Two storey north/east extension, 1no. balcony with external staircase, part raising of the ridge to accommodate a loft conversion and 2no. dormers to east elevation.

  Refused Full applications Extension Loft or dormer 20 docs

• 27 Churchfield Cottages Bedford Lane Sunningdale Ascot SL5 0NN

  22/01010/FULL Submitted 13 Apr 2022 200 yards away

  First floor side/rear extension and enlargement of the existing rear dormer with the installation of a juliet balcony.

  Refused Full applications Extension Loft or dormer 22 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