45 Halfpenny Lane Sunningdale Ascot SL5 0EG

1. 8 Oct 2025

   Received by Windsor and Maidenhead

2. 2 Dec 2025

   Decision issued: Application Permitted

3. 11 Aug 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 2 December 2025, 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 full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 47 Halfpenny Lane Sunningdale Ascot SL5 0EG

  21/03136/CPD Submitted 21 Oct 2021 50 yards away

  Certificate of lawfulness to determine whether the proposed single storey side/rear extension, x1 front rooflight and x1 side dormer to facilitate a loft conversion and alterations to fenestration is lawful.

  Granted Lawful development Extension Loft or dormer +1 13 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

• 26/02029/FULL Granted

  5 Kimber Close Windsor SL4 4BJ

  Single storey rear extension.

  Received 17 Aug, published by the council 27 Aug 2026 Full applications
• 26/01955/FULL Granted

  2 Holmlea Road Datchet Slough SL3 9HQ

  Change of use from a dwellinghouse (Use Class C3) to a children's home (Use Class C2) for up to three children, together with conversion of the garage to an office with an en-suite facilities and alterations to fenestration.

  Received 7 Aug, published by the council 27 Aug 2026 Full applications
• 26/01121/FULL Granted

  Zain House 15 Wilton Crescent Windsor SL4 4YJ

  Single storey side/front extension, first floor extension over existing side element with 1no. Juliet balcony and 1no. Juliet balcony to existing rear elevation.

  Received 6 May, published by the council 11 Aug 2026 Full applications
• 26/01977/FULL Granted

  9 St Marks Place Windsor SL4 3BG

  Garage conversion and alterations to fenestration.

  Received 11 Aug, published by the council 24 Aug 2026 Full applications
• 26/01804/FULL Granted

  16 Devereux Road Windsor SL4 1JJ

  Installation of air conditioning compressor unit to the first floor side elevation.

  Received 23 Jul, published by the council 24 Aug 2026 Full applications