Planning application
26/00864/FULL
Callally Whitmore Lane Ascot SL5 0NA
Proposal
Single storey side extension, new steps, 1no. chimney, 1no. outbuilding ancillary to the main dwelling with pergola, PV panels, 1no. ASHP, alterations of the existing terrace and to fenestration following demolition of existing elements.
As published by the council, reference 26/00864/FULL
Timeline
Dates from the published record
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7 Apr 2026
Received by Windsor and Maidenhead
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15 Apr 2026
Validated
Checked as complete and ready for consideration.
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5 Jun 2026
Decision issued: Application Permitted
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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.
Nearby applications
Within 500 metres
-
26/01550/FULL Awaiting decision
Land On The East Side of Whitmore Lane Ascot
Construction of 1 no. self-build family dwelling with PV panels, new boundary treatment, 1 no. cycle store, 1 no. bin store, landscaping, widened access, dropped kerb and associated works
-
23/00265/CPD Refused
27 Coworth Road Sunningdale Ascot SL5 0NX
Certificate of lawfulness to determine whether the proposed second floor front extension with hip to gable, 3 No. front rooflights and rear dormer to facilitate habitable accommodation in roof space is lawful.
-
22/02763/FULL Refused
The Garden House Church Lodge Whitmore Lane Ascot SL5 0NT
Detached outbuilding (Retrospective).
-
23/00307/FULL Refused
The Garden House Church Lodge Whitmore Lane Ascot SL5 0NT
Detached outbuilding (Retrospective).
-
22/03382/TPO Granted
Woodland South of Coworth Park Copse Wood And East of Whitmore Lane Ascot
(T1) - Scots Pine - Crown reduce by 2-3m, leaving a final height of 18m and spread of 8m. Ivy removal. (069/2003/TPO and 001/1957/TPO)
-
26/01079/TPO Awaiting decision
Tittenhurst London Road Sunninghill Ascot SL5 0PN
T3 - Lime - Crown reduction as per photograph (004/1964/TPO).
Other full applications applications
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).
-
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
-
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.
-
26/01387/FULL Granted
7 Elm Road Windsor SL4 3NB
Single storey rear/side extension
-
26/00877/FULL Granted
45 Queens Close Old Windsor Windsor SL4 2PR
Two storey front/side extension.