15 Parkside Road Sunningdale Ascot SL5 0NL

1. 18 Oct 2021

   Received by Windsor and Maidenhead

2. 13 Dec 2021

   Decision issued: Application Permitted

3. 16 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

• 15 Parkside Road Sunningdale Ascot SL5 0NL

  21/03107/CPD Submitted 18 Oct 2021 3m away

  Certificate of lawfulness to determine whether the proposed rear dormer and 2no. front rooflights is lawful.

  Granted Lawful development Loft or dormer 10 docs

• 17 Parkside Road Sunningdale Ascot SL5 0NL

  26/00337/CONDIT Submitted 9 Feb 2026 6m away

  Details required by Condition 1 (Obscure Glazing Scheme) and 2 (Timber Wall Scheme) of planning permission 25/02011/FULL (Allowed on Appeal) for 1no. outbuilding ancillary to the main dwelling with steps, for ancillary domestic purposes including home office, exercise and leisure use, following demolition of existing outbuilding (retrospective).

  Granted Conditions Demolition Windows or glazing 9 docs
  Small domestic

• 7 Parkside Road Sunningdale Ascot SL5 0NL

  22/02846/FULL Submitted 19 Oct 2022 26m away

  Part hip to gable to facilitate a loft conversion and alterations to fenestration.

  Refused Full applications Loft or dormer Windows or glazing 12 docs

• 7 Parkside Road Sunningdale Ascot SL5 0NL

  22/01384/FULL Submitted 19 May 2022 26m away

  x2 new front rooflights, hip to gable and second floor rear extension to facilitate a loft conversion.

  Refused Full applications Extension Loft or dormer 13 docs

• 1 Sidbury Close Ascot SL5 0PD

  21/01968/FULL Submitted 28 Jun 2021 45m away

  Single storey front extension with integral garage.

  Granted Full applications Extension 12 docs
  Small domestic

• 1 Sidbury Close Ascot SL5 0PD

  21/03252/FULL Submitted 2 Nov 2021 46m away

  First floor front extension and x1 new window to existing side elevation.

  Granted Full applications Extension Windows or glazing 12 docs

• 26/01628/FULL Granted

  25 Bannard Road Maidenhead SL6 4NP

  Single storey rear extension following the demolition of the existing conservatory.

  3 Jul 2026 Full applications
• 26/01384/FULL Granted

  Stoney Vere Farm House Butchers Lane White Waltham Maidenhead SL6 3SD

  Single storey side extension

  4 Jun 2026 Full applications
• 26/01674/FULL Granted

  50 Welley Road Wraysbury Staines TW19 5DJ

  Detached annexe to be used ancillary to the main dwelling.

  9 Jul 2026 Full applications
• 26/01312/FULL Refused

  16 Whyteladyes Lane Cookham Maidenhead SL6 9NA

  Hip to gable, 1no. front dormer, 1no. rear dormer and alterations to fenestration and relocation of PV panels.

  27 May 2026 Full applications
• 26/01379/FULL Granted

  Lotus Cottage Holyport Street Holyport Maidenhead SL6 2JR

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

  4 Jun 2026 Full applications