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Planning application

26/00836/FULL

48 Hilltop Close Ascot SL5 7QU

Granted Windsor and Maidenhead Full

Proposal

Single storey rear extension and alteration to fenestration following demolition of existing outbuilding (Retrospective)

As published by the council, reference 26/00836/FULL

Timeline

Dates from the published record

  1. 31 Mar 2026

    Received by Windsor and Maidenhead

  2. 29 May 2026

    Validated

    Checked as complete and ready for consideration.

  3. 17 Jul 2026

    Decision issued: Application Permitted

  4. 25 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

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.

About full applications applications

How this application type works

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

Nearby applications

Within 500 metres

  • 26/00318/CLD Granted

    55 Hilltop Close Ascot SL5 7QT

    Certificate of lawfulness to determine whether the existing fence is lawful.

    4 Feb 2026 95m away Lawful development
  • 26/00431/FULL Refused

    Meadow Cottage 39 Cheapside Road Ascot SL5 7QR

    Part single part two storey side extension and 1no. rear Juliet balcony following demolition of existing garage.

    16 Feb 2026 109m away Full applications
  • 26/00678/CPD Refused

    5 Hilltop Close Ascot SL5 7QT

    Certificate of lawfulness to determine whether the proposed single storey side extension to the existing outbuilding is lawful.

    16 Mar 2026 113m away Lawful development
  • 22/03183/FULL Refused

    Wisteria Cottage Cheapside Road Ascot SL5 7QH

    Single storey side extension with covered porch, single storey rear infill extension, replace flat roof with pitched roof to single storey rear element, replacement roof and raising of the ridge, 2no. front dormers, alterations to fenestration and 2no.parking spaces following the demolition of the greenhouse and garage.

    28 Nov 2022 138m away Full applications
  • 22/02976/TPO Refused

    Connifer Cottage Watersplash Lane Ascot SL5 7QP

    (T1) Scots Pine - fell; (T2) Scots Pine - crown reduce by 1 - 1.5m to leave a height and spread of Xm and (T3) Scots Pine - fell. (023/1997/TPO).

    8 Nov 2022 192m away Trees
  • 23/00101/CPD Refused

    Barberry Cottage Watersplash Lane Ascot SL5 7QP

    Certificate of lawfulness to determine whether the single storey side extension is lawful.

    16 Jan 2023 258m away Lawful development

In Windsor and Maidenhead

  • 26/00962/FULL Granted

    Bonnicut Barn Bonnicut Court 14 High Street Sunningdale Ascot SL5 0NB

    2no. front dormers, part raising of the front elevation to form a parapet wall and terrace, 3no. front rooflights, 3no. rear dormers and alterations to fenestration. (Part Retrospective).

    20 Apr 2026 Full applications
  • 26/01310/FULL Granted

    6 Gilman Crescent Windsor SL4 4YN

    Single storey front/side extension, relocated front door, two storey rear extension, alterations to fenestration and hardstanding, new steps, 1 no. dropped kerb, following demolition of existing elements

    22 May 2026 Full applications
  • 25/03313/FULL Refused

    Land To The South of Lower Mount Farm Long Lane Cookham Maidenhead

    Erection of a crematorium with ceremony hall and memorial arboretum, associated use of land, PV array, vehicular access, parking, landscaping, pavement and road widening along Long Lane.

    15 Dec 2025 Full applications
  • 26/01387/FULL Granted

    7 Elm Road Windsor SL4 3NB

    Single storey rear/side extension

    5 Jun 2026 Full applications
  • 26/00877/FULL Granted

    45 Queens Close Old Windsor Windsor SL4 2PR

    Two storey front/side extension.

    7 Apr 2026 Full applications