Planning application
26/00678/CPD
5 Hilltop Close Ascot SL5 7QT
Proposal
Certificate of lawfulness to determine whether the proposed single storey side extension to the existing outbuilding is lawful.
As published by the council, reference 26/00678/CPD
Timeline
Dates from the published record
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16 Mar 2026
Received by Windsor and Maidenhead
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6 May 2026
Decision issued: Refuse
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25 Jul 2026
Added to PlanIndex
What refusal means
The process from here
The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.
Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.
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
-
26/00318/CLD Granted
55 Hilltop Close Ascot SL5 7QT
Certificate of lawfulness to determine whether the existing fence is lawful.
-
26/00431/FULL Refused
Meadow Cottage 39 Cheapside Road Ascot SL5 7QR
Part single part two storey side extension and 1no. rear Juliet balcony following demolition of existing garage.
-
26/00836/FULL Granted
48 Hilltop Close Ascot SL5 7QU
Single storey rear extension and alteration to fenestration following demolition of existing outbuilding (Retrospective)
-
22/02976/TPO Refused
Connifer Cottage Watersplash Lane Ascot SL5 7QP
(T1) Scots Pine - fell; (T2) Scots Pine - crown reduce by 1 - 1.5m to leave a height and spread of Xm and (T3) Scots Pine - fell. (023/1997/TPO).
-
23/00101/CPD Refused
Barberry Cottage Watersplash Lane Ascot SL5 7QP
Certificate of lawfulness to determine whether the single storey side extension is lawful.
-
22/03183/FULL Refused
Wisteria Cottage Cheapside Road Ascot SL5 7QH
Single storey side extension with covered porch, single storey rear infill extension, replace flat roof with pitched roof to single storey rear element, replacement roof and raising of the ridge, 2no. front dormers, alterations to fenestration and 2no.parking spaces following the demolition of the greenhouse and garage.
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.