Planning application
26/01648/CPD
38 Tilstone Close Eton Wick Windsor SL4 6NG
Proposal
Certificate of lawfulness to determine whether the proposed formation of habitable room in roofspace with side dormer, 1 No front and side rooflights, 1 No. rear window with Juliet balcony, part hip to gable and raising of the ridge is lawful.
As published by the council, reference 26/01648/CPD
Timeline
Dates from the published record
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6 Jul 2026
Received by Windsor and Maidenhead
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25 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Windsor and Maidenhead for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
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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26/00606/FULL Refused
38 Tilstone Close Eton Wick Windsor SL4 6NG
1no. side dormer, hip to gable and alterations to fenestration.
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21/01347/FULL Granted
40 Tilstone Close Eton Wick Windsor SL4 6NG
Single storey front and rear extensions and x2 side rooflights, following demolition of the existing conservatory.
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22/02307/CPD Refused
49 Tilstone Close Eton Wick Windsor SL4 6NG
Certificate of lawfulness to determine whether the proposed single storey side/rear extension, rear safety rail, loft conversion and alterations to fenestration is lawful.
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22/02832/CPD Granted
49 Tilstone Close Eton Wick Windsor SL4 6NG
Certificate of lawfulness to determine whether the proposed single storey side/rear extension, rear safety rail, loft conversion and alterations to fenestration is lawful.
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21/01215/FULL Granted
18 Tilstone Close Eton Wick Windsor SL4 6NG
Single storey front and rear extensions, single storey side/rear extension to garage, part garage conversion into habitable accommodation and alterations and raising of garage roof.
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26/01045/FULL Granted
1 Tilstone Close Eton Wick Windsor SL4 6NG
Single storey side/rear extension following demolition of existing elements.
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.
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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.
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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.
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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.