Planning application
26/00403/CPD
16 Aston Mead Windsor SL4 5PW
Proposal
Certificate of lawfulness to determine whether the proposed 3no. front rooflights and 1no. rear dormer with Juliet balcony to facilitate a loft conversion is lawful.
As published by the council, reference 26/00403/CPD
Timeline
Dates from the published record
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16 Feb 2026
Received by Windsor and Maidenhead
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1 Apr 2026
Decision issued: Permitted Development
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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 lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
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26/01061/FULL Granted
16 Aston Mead Windsor SL4 5PW
Single storey front extension, part single part two storey side/rear extension, 1no. rear dormer with Juliet balcony and alterations to fenestration following demolition of existing side elements.
-
26/00486/FULL Granted
15 Jacob Close Windsor SL4 5PT
Single storey side extension with new flat roof and 2 no. roof lanterns over the single storey rear element.
-
21/01585/CPD Granted
32 Cawcott Drive Windsor SL4 5PU
Certificate of lawfulness to determine whether the proposed detached outbuilding to be used as a games room/gym/store is lawful.
-
21/01586/FULL Granted
32 Cawcott Drive Windsor SL4 5PU
Part single/part two storey wrap around extension, x1 rear dormer to facilitate a loft conversion, x3 front rooflights and x1 rear rooflight following demolition of existing element.
-
26/01743/CPD Awaiting decision
1 Aston Mead Windsor SL4 5PW
Certificate of lawfulness to determine whether the proposed replacement single storey rear extension is lawful.
-
26/01249/FULL Granted
27 Whiteley Windsor SL4 5PJ
Garage conversion, single storey rear/side extension, first floor front/rear extension with supporting pillars to the side elevation, 1no. rear Juliet balcony and alterations to external finish and fenestration.
Other lawful development applications
In Windsor and Maidenhead
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26/01836/CPD Awaiting decision
Rivendale 22A Gloucester Drive Wraysbury Staines TW18 4TY
Certificate of lawfulness to determine whether the proposed conversion of the existing garage into habitable space is lawful.
-
26/01528/CPD Granted
Foxley Manor Forest Green Road Holyport Maidenhead SL6 2NW
Certificate of lawfulness to determine whether the proposed erection of an outbuilding is lawful.
-
26/01532/CPD Granted
72 Highway Avenue Maidenhead SL6 5AQ
Certificate of Lawfulness to determine whether the proposed rear dormer roof extension and associated internal alterations to enlarge the existing loft accommodation is lawful.
-
26/01823/CPD Awaiting decision
Highwood Corner Grubwood Lane Cookham Maidenhead SL6 9UB
Certificate of lawfulness to determine whether the proposed garage conversion, alterations to fenestration, 1 no. front dormer and 1 no. rear dormer to facilitate a loft conversion is lawful.
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26/01772/CPD Granted
18 Broken Furlong Eton Windsor SL4 6PD
Certificate of lawfulness to determine whether the proposed erection of a single storey rear detached annex to be used incidental with the host dwelling is lawful.