47 Halfpenny Lane Sunningdale Ascot SL5 0EG

1. 21 Oct 2021

   Received by Windsor and Maidenhead

2. 16 Dec 2021

   Decision issued: Permitted Development

3. 16 Aug 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 16 December 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.

• 45 Halfpenny Lane Sunningdale Ascot SL5 0EG

  25/02638/FULL Submitted 8 Oct 2025 50 yards away

  Single storey side/rear extension with new step, side twin dormer and alterations to fenestration, following demolition of existing elements

  Granted Full applications Extension Loft or dormer +2 17 docs
  Small domestic

• 51 Halfpenny Lane Sunningdale Ascot SL5 0EG

  22/01117/CPD Submitted 26 Apr 2022 50 yards away

  Certificate of lawfulness to determine whether the hip to gable loft conversion including the installation of two roof windows to the pitched roof of the front elevation and the addition of an l-shape dormer at the rear is lawful.

  Granted Lawful development Loft or dormer Windows or glazing 8 docs

• 8 North End Lane Sunningdale Ascot SL5 0DZ

  21/00208/CPD Submitted 26 Jan 2021 50 yards away

  Certificate of lawfulness to determine whether the proposed hip to gable loft conversion with x2 front rooflights, x1 second floor side window and x1 rear L-shaped dormer is lawful.

  Granted Lawful development Loft or dormer Windows or glazing 9 docs

• 57 Halfpenny Lane Sunningdale Ascot SL5 0EG

  19/03562/FULL Submitted 20 Dec 2019 50 yards away

  Part two storey part single storey side/rear extension and alterations to fenestration.

  Granted Full applications Extension Windows or glazing 21 docs
  Small domestic

• 57 Halfpenny Lane Sunningdale Ascot SL5 0EG

  20/02944/FULL Submitted 5 Nov 2020 50 yards away

  Two storey side and single storey rear extension, relocation of front door, alteration to fenestration, side path to be refinished in gravel and pavers following demolition of existing elements.

  Refused Full applications Extension Demolition +1 27 docs
  Small domestic

• Street Record Guards Court Sunningdale Ascot

  20/02577/TPO Submitted 1 Oct 2020 100 yards away

  (T1) Horse Chestnut - reduce lateral branches and remaining top by 3m.

  Granted Trees 6 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