Cornerstone Onslow Road Sunningdale Ascot SL5 0HW

This site has had 3 applications since 2022: 1 approved, 1 refused.

• 22/00913/VAR Granted

  Cornerstone Onslow Road Sunningdale Ascot SL5 0HW

  Variation (under Section 73a) of Condition 5 substitute those plans approved under 21/02680 for the Relocation of existing front entrance door to include x1 new canopy, two storey rear extension, single storey link extension to side elevation, two storey side extension, alteration to roof of and of front dormers, garage conversion into habitable accommodation, removal of chimney, entrance gate and alterations to fenestration on ground and first floor following demolition of existing elements (part retrospective). amended plans.

  Decided 27 May 2022 Amendments
• 22/00133/NMA Refused

  Cornerstone Onslow Road Sunningdale Ascot SL5 0HW

  Non material amendments to planning permission 21/02680 for change to front porch, new ensuite windows to front and side elevations, change to front window to guest bedroom, new dormer to side of guest bedroom, rear utility room door changed to window, utility and gym door and windows changed on side elevation.

  Decided 9 Feb 2022 Amendments

1. 24 Feb 2022

   Received by Windsor and Maidenhead

2. 6 Apr 2022

   Decision issued: Application Withdrawn

3. 16 Aug 2026

   Added to PlanIndex

• 21/02680/FULL Granted

  Sharnbrook Onslow Road Sunningdale Ascot SL5 0HW

  Relocation of existing front entrance door to include x1 new canopy, two storey rear extension, single storey link extension to side elevation, two storey side extension, alteration to roof of and of front dormers, garage conversion into habitable accommodation, removal of chimney, entrance gate and alterations to fenestration on ground and first floor following demolition of existing elements (part retrospective).

  Decided 5 Nov 2021 Full applications

The applicant withdrew this application before Windsor and Maidenhead decided it, and is free to submit a revised scheme at any time. More in our guide to what happens after a planning decision.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• Sharnbrook Onslow Road Sunningdale Ascot SL5 0HW

  21/02680/FULL Submitted 2 Sep 2021 50 yards away

  Relocation of existing front entrance door to include x1 new canopy, two storey rear extension, single storey link extension to side elevation, two storey side extension, alteration to roof of and of front dormers, garage conversion into habitable accommodation, removal of chimney, entrance gate and alterations to fenestration on ground and first floor following demolition of existing elements (part retrospective).

  Granted Full applications Extension Loft or dormer +2 11 docs
  Small domestic

• Cornerstone Onslow Road Sunningdale Ascot SL5 0HW

  22/00133/NMA Submitted 19 Jan 2022 50 yards away

  Non material amendments to planning permission 21/02680 for change to front porch, new ensuite windows to front and side elevations, change to front window to guest bedroom, new dormer to side of guest bedroom, rear utility room door changed to window, utility and gym door and windows changed on side elevation.

  Refused Amendments Extension Loft or dormer +1 5 docs
  Small domestic

• Cornerstone Onslow Road Sunningdale Ascot SL5 0HW

  22/00913/VAR Submitted 1 Apr 2022 50 yards away

  Variation (under Section 73a) of Condition 5 substitute those plans approved under 21/02680 for the Relocation of existing front entrance door to include x1 new canopy, two storey rear extension, single storey link extension to side elevation, two storey side extension, alteration to roof of and of front dormers, garage conversion into habitable accommodation, removal of chimney, entrance gate and alterations to fenestration on ground and first floor following demolition of existing elements (part retrospective). amended plans.

  Granted Amendments Extension Loft or dormer +2 13 docs
  Small domestic

• Sharnbrook Onslow Road Sunningdale Ascot SL5 0HW

  21/01521/FULL Submitted 17 May 2021 50 yards away

  New front canopy, garage conversion, new roof to single storey front element, 2no. front dormers, part single, part first floor, part three storey rear extensions, 2 x rear gables, garage including first floor accommodation with side dormer and single storey side link to main dwelling and alterations to fenestration, new front boundary wall and gate.

  Withdrawn Full applications Extension Loft or dormer +2 15 docs
  Small domestic

• Willow House Onslow Road Sunningdale Ascot SL5 0HW

  21/02856/FULL Submitted 22 Sep 2021 50 yards away

  Enclosure of existing carport to form a garage.

  Granted Full applications 15 docs

• Ashley House Onslow Road Sunningdale Ascot SL5 0HW

  22/03348/FULL Submitted 16 Dec 2022 100 yards away

  Garage conversion, new front porch canopy, part single, part first floor, part two storey side/rear extension, change from flat to pitched roof to the single storey rear element, alterations to fenestration and detached garage.

  Granted Full applications Extension Windows or glazing 23 docs
  Small domestic

• 26/00814/VAR Granted

  Land West of Switchback Road North And North of Nightingale Lane Maidenhead

  Variation (under Section 73a) of planning permission 21/02963/FULL to vary the wording of Condition 8 (Drainage), 9 (Vehicles), 10 (Landscaping) and 11 (Painting) without complying with one month time limit.

  Received 27 Mar, published by the council 25 Jul 2026 Amendments
• 26/01411/VAR Granted

  Whiteladies Park Prince Albert Drive Ascot SL5 8AQ

  Variation (under Section 73) of Condition 11 to substitute those plans approved under 25/03016/FULL for the Redevelopment of existing dwelling, including demolition and reconstruction of western extension, the construction of an eastern extension including an indoor swimming pool, and creation of a basement area with amended plans.

  Received 8 Jun, published by the council 25 Jul 2026 Amendments
• 26/01792/VAR Granted

  Silver Birches St Marys Road Ascot SL5 9JE

  Variation (under Section 73) of Condition 9 (Approved Plans) to substitute those plans approved under 26/00205/FULL for a raised ridge, 2 no. front dormers and 1 no. rear dormer, 1no. side bay window, new chimney, single storey side/rear extension, alterations to fenestration and hardstanding, following demolition of existing elements with amended plans.

  Received 22 Jul, published by the council 31 Jul 2026 Amendments
• 26/02420/NMA Awaiting decision

  Development At King Street And Queen Street And Broadway Maidenhead

  Non material amendments to planning permission 25/00066/VAR as per covering letter.

  Received 2 Oct, published by the council 9 Oct 2026 Amendments
• 26/02152/NMA Granted

  Land Bounded By Ascot Fire Station Station Hill And West of Hermitage Parade And South of High Street Ascot SL5 7HF

  Non material amendments to planning permission 25/01050/FULL to amend the wording of Condition 8 (Bat Mitigation Scheme).

  Received 1 Sep, published by the council 8 Sep 2026 Amendments