Planning application
26/00390/CPD
1 Colenorton Crescent Eton Wick Windsor SL4 6NW
Proposal
Certificate of lawfulness to determine whether the proposed loft conversion with hip to gable roof alteration, 1no. rear dormer with 1 no. rear juliet balcony and alterations to fenestration to include 3 no. front rooflights is lawful.
As published by the council, reference 26/00390/CPD
Timeline
Dates from the published record
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13 Feb 2026
Received by Windsor and Maidenhead
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18 Mar 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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26/00970/FULL Granted
1 Colenorton Crescent Eton Wick Windsor SL4 6NW
Garage conversion, 2no. single storey side/rear extensions and alterations to fenestration.
-
26/01045/FULL Granted
1 Tilstone Close Eton Wick Windsor SL4 6NG
Single storey side/rear extension following demolition of existing elements.
-
26/00480/FULL Granted
18 Boveney New Road Eton Wick Windsor SL4 6NH
Single storey rear extension following the demolition of the existing rear element and detached outbuilding.
-
24/01990/FULL Withdrawn
144 Eton Wick Road Eton Wick Windsor SL4 6NP
Single storey wraparound extension (front/side/rear), hardstanding, new dropped kerb and alterations to fenestration following demolition of existing outbuilding.
-
26/00295/FULL Refused
65 Eton Wick Road Eton Wick Windsor SL4 6NE
Single storey rear extension, raising of the eaves and ridge, additional first floor and accommodation within the roofspace, 1no. front dormer, 1no. side dormer, 1no. rear dormer, decking and alterations to fenestration and external finish following demolition of 1no. front bay window and existing elements.
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23/00293/PDXL Granted
130 Eton Wick Road Eton Wick Windsor SL4 6NP
Single storey rear extension no greater than 5.00m in depth, 2.70m high with an eaves height of 2.50m.
Other lawful development applications
In Windsor and Maidenhead
-
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.
-
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.