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Planning application

21/01662/VAR

Crestwood House Devenish Lane Sunningdale Ascot SL5 9QU

Granted Windsor and Maidenhead Variation Under Reg 73

Proposal

Variation (under Section 73) of Condition 3 (approved plans) to substitute those plans approved under 20/02659/FULL for the single storey rear extension to house an indoor swimming pool, plant room and changing area, new first floor rear balcony with support posts and alterations to fenestration.

As published by the council, reference 21/01662/VAR

Timeline

Dates from the published record

  1. 27 May 2021

    Received by Windsor and Maidenhead

  2. 1 Jun 2021

    Validated

    Checked as complete and ready for consideration.

  3. 27 Jul 2021

    Decision issued: Application Permitted

  4. 27 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 amendments applications

How this application type works

An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.

More on amendments applications in our guide

Nearby applications

Within 500 metres

  • 26/01637/CONDIT Awaiting decision

    Saltaire Devenish Road Sunningdale Ascot SL5 9QP

    Details required by Condition (15) (foundation details) (16) (installation of services and drains) of planning permission (23/01728/FULL) for a (replacement dwelling following demolition of existing dwelling and outbuildings).

    6 Jul 2026 137m away Conditions
  • 23/00182/FULL Granted

    Mahala Devenish Lane Sunningdale Ascot SL5 9QU

    Erection of a summerhouse ancillary to the main dwelling and alterations to existing ground levels.

    23 Jan 2023 148m away Full applications
  • 26/01069/TPO Refused

    Castlereagh Devenish Lane Sunningdale Ascot SL5 9QU

    T1) Copper Beech - crown reduce by 5.7m and reduce spread by 2.7m to leave a height of 13.3m and a spread of 6.3m. (021/2016/TPO).

    30 Apr 2026 162m away Trees
  • 22/02805/CLD Granted

    Holywell Devenish Road Sunningdale Ascot SL5 9QP

    Certificate of lawfulness to determine whether the existing domestic garage is lawful.

    18 Oct 2022 169m away Lawful development
  • 23/30004/SMI Granted

    New Place London Road Sunningdale Ascot

    Construction of a single-storey side extension and conversion of a communal store to faciliate the creation of a 1 bedroom dwelling and enlargement of apartment 2 together with the construction of a communal porch. Associated landscaping and parking.

    23 Feb 2023 192m away
  • 26/01071/TPO Granted

    5 Grant Walk Sunningdale Ascot SL5 9TT

    T1- Oak and T2 - Scots Pine - fell (003/1984/TPO).

    30 Apr 2026 215m away Trees

In Windsor and Maidenhead

  • 26/01841/NMA Awaiting decision

    Orchard End Sill Bridge Lane Waltham St Lawrence Reading RG10 0NT

    Non material amendments to planning permission 25/02591/FULL as per covering letter.

    27 Jul 2026 Amendments
  • 26/01843/VAR Awaiting decision

    Orchard End Sill Bridge Lane Waltham St Lawrence Reading RG10 0NT

    Variation (under Section 73) of planning permission 25/02591/FULL to vary the wording of Condition 17 (Ground Sourced Heat Pump).

    27 Jul 2026 Amendments
  • 26/01807/NMA Awaiting decision

    57B And Keeler Ltd Clewer Hill Road Windsor

    Non material amendment to planning permission 25/02014/FULL for alterations to the wording of part D Condition 16.

    24 Jul 2026 Amendments
  • 26/01813/NMA Awaiting decision

    5 Meadow Way Fifield Maidenhead SL6 2PE

    Non material amendments to planning permission 26/00322/FULL to allow NatureSpace to add conditions.

    24 Jul 2026 Amendments
  • 26/01811/NMA Awaiting decision

    Grove Park Industrial Estate Waltham Road White Waltham Maidenhead SL6 3LW

    Non material amendments to planning permission 25/01083/VAR for changes to the proposed elevations and materials to plots 10-11, 15-16, 18-19, 24-25, 26-27, 28-29, 39-41, 42-44 and 45-47 and 48-51.

    24 Jul 2026 Amendments