Planning application
26/01224/CPD
7 Keppel Spur Old Windsor Windsor SL4 2LU
Proposal
Certificate of lawfulness to determine whether the proposed 1no. rear dormer, 2no. front rooflights and 1no. window to side elevation to accommodate a loft conversion are lawful.
As published by the council, reference 26/01224/CPD
Timeline
Dates from the published record
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14 May 2026
Received by Windsor and Maidenhead
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3 Jun 2026
Validated
Checked as complete and ready for consideration.
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29 Jun 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
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26/01711/CPD Granted
7 Keppel Spur Old Windsor Windsor SL4 2LU
Certificate of lawfulness to determine whether the proposed 1no. rear dormer, 2no. front rooflights and 1no. window to the side gable to accommodate a loft conversion are lawful.
-
22/02425/TPO Granted
13 Keppel Spur Old Windsor Windsor SL4 2LU
T2 - Ash - removal of dead branches, crown lift to 8m above ground, crown reduction by 2m to nearest growth point, T4 - Oak - removal of dead branches, crown lift to 5.5m above ground, crown reduction by 2m to nearest growth point, branches encroaching on property to be cut back to leave a clearance of 2m (041/2004/TPO)
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22/02473/CPD Granted
17 Keppel Spur Old Windsor Windsor SL4 2LU
Certificate of lawfulness to determine whether the proposed 2no. front rooflights, 1no. gable window and 1no. rear dormer is lawful.
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23/00112/FULL Granted
17 Keppel Spur Old Windsor Windsor SL4 2LU
x1 detached outbuilding.
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22/03080/FULL Refused
17 Keppel Spur Old Windsor Windsor SL4 2LU
Detached outbuilding.
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22/02424/FULL Refused
17 Keppel Spur Old Windsor Windsor SL4 2LU
Detached outbuilding.
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.